Question 1

Is Lauric Acid Polyoxyethylene Ether LAE-9 harmful to the human body? Does it have any impact on the environment?

Accepted Answer

Lauric Acid Polyoxyethylene Ether LAE-9 has clear hazards to the human body (harmful if swallowed, skin irritation, serious eye damage), and is extremely toxic to the aquatic environment with long-lasting effects. It is a dangerous chemical that requires strict control. Detailed Explanation Lauric Acid Polyoxyethylene Ether LAE-9 (PEG-9 Laurate), although a high-performance nonionic surctant, poses significant risks to human health and the aquatic environment from toxicological and ecotoxicological perspectives. According to the authoritative classification of the Globally Harmonized System of Classification and Labelling of Chemicals (GHS), this product is clearly classified into multiple hazard categories, and users must fully understand its hazardous characteristics and take strict protective measures. Regarding human health, LAE-9 has an acute oral toxicity of Category 4 (H302: Harmful if swallowed), meaning ingestion can cause harm. For skin contact, the product lls under Skin Irritation Category 2 (H315: Causes skin irritation), which may cause redness, itching, and other discomfort. Notably, eye hazard is classified as the most severe Category 1 (H318: Causes serious eye damage). Splashes into the eyes may lead to irreversible serious injury, which is the most critical risk to be vigilant about during handling. In terms of environmental impact, the product is classified as Hazardous to the aquatic environment — Acute Hazard Category 1 and Chronic Hazard Category 1 (H410). This indicates that LAE-9 is extremely toxic to aquatic organisms (such as fish, algae, crustaceans, etc.), can cause serious harm to aquatic ecosystems even at low concentrations, and is bioaccumulative with long-lasting effects. Therefore, it is strictly prohibited to discharge the product or its waste liquid directly into water bodies, sewers, or soil. Technical Parameters — Overview of GHS Hazard Classification Hazard Category GHS Classification Hazard Code Hazard Statement Acute Oral Toxicity Category 4 H302 Harmful if swallowed Skin Corrosion/Irritation Category 2 H315 Causes skin irritation Serious Eye Damage/Eye Irritation Category 1 H318 Causes serious eye damage Hazardous to the Aquatic Environment (Acute) Category 1 H400 Very toxic to aquatic life Hazardous to the Aquatic Environment (Chronic) Category 1 H410 Very toxic to aquatic life with long lasting effects Application Recommendations Given the hazardous characteristics of this product, in practical applications in industries such as daily chemicals, textiles, pesticides, and metal processing, safety control must be integrated into the core of production management: Formulation Design: Whenever possible, reduce the concentration of LAE-9 in the final product through process optimization, and evaluate alternatives. In personal care products and household detergents, ensure that the final product, after adequate dilution, does not cause eye or skin damage to consumers. Engineering Controls: Maintain good ventilation in the workplace, and install local exhaust ventilation if necessary. The operation area must be equipped with emergency shower and eyewash stations to handle accidental spills. Wastewater Treatment: Production wastewater containing LAE-9 must undergo professional treatment (e.g., biochemical degradation, activated carbon adsorption). Direct discharge without treatment is strictly prohibited to prevent toxicity to aquatic organisms such as fish and algae in receiving waters. Precautions Personal Protection: Wear chemical safety goggles, impermeable gloves (e.g., nitrile rubber), and appropriate protective clothing during operation. Do not eat, drink, or smoke while using the product. Eye First Aid: If splashed into eyes, immediately rinse with plenty of clean water or saline for several minutes. Remove contact lenses and continue rinsing, then seek medical attention immediately—this is the most critical emergency measure. Skin Contact: Immediately remove contaminated clothing, wash skin with plenty of soap and water. If irritation persists, seek medical attention. Contaminated clothing must be washed before reuse. Storage Requirements: Store in a cool, dry, well-ventilated dedicated warehouse, with temperature maintained between 5°C and 40°C. Keep away from strong oxidizing agents and strong acids, and keep containers tightly closed. Spill Handling: Contain and collect with inert absorbent materials (e.g., sand, vermiculite), place in a closed container, and dispose of according to hazardous waste regulations. Do not allow rinse water to enter the environment directly. Ingestion: Do NOT induce vomiting; rinse mouth with water and immediately call a poison control center or seek medical attention.

Question 2

What should I do if problems occur during the use of Lauryl Polyoxyethylene Ether LAE-9? How to obtain technical support?

Accepted Answer

When encountering problems with LAE-9 during use, immediately refer to the product safety data sheet for emergency treatment, and obtain professional technical support through official channels of Guoli Chemical. Detailed Explanation Problems that may occur during the use of Lauryl Polyoxyethylene Ether LAE-9 are mainly divided into three categories: product quality and formulation issues (such as poor emulsification effect, stratification, turbidity point deviation, etc.), operational safety and health issues (such as skin irritation, eye contact, etc.), and storage and environmental issues (such as product deterioration, leakage, etc.). For different types of problems, the handling methods and response procedures vary. For technical issues at the formulation or process level (such as unstable emulsification system, unsatisctory solubilization effect, incompatibility when compounded with other surctants, etc.), it is recommended to first check whether the proportions, addition sequence, temperature, and pH conditions of each component in the formulation are reasonable. As a nonionic surctant, LAE-9 has an HLB value of approximately 13-14, suitable for O/W emulsification systems. When used in acidic, alkaline, or high-hardness water environments, this product exhibits excellent chemical stability, but extreme pH or excessively high temperatures may still affect its performance. It is recommended to record the problem phenomenon and operating conditions in detail, then seek targeted guidance from the Guoli Chemical technical team. For emergencies involving personal safety (such as accidental eye contact, large-scale skin contact, ingestion, etc.), first-aid measures must be prioritized, followed by contacting technical personnel. LAE-9 is classified under GHS as serious eye damage/eye irritation Category 1 (H318), which can cause severe damage if it enters the eyes. Rinse immediately with plenty of water and seek medical attention. Meanwhile, this product is extremely toxic to aquatic life (H410); in case of leakage, strict measures must be taken to prevent it from entering water bodies or sewers. Common Problem Troubleshooting Guide Problem CategoryPossible CausesInitial Troubleshooting Directions Poor emulsification effect/stratificationHLB value does not match the oil phase; insufficient dosage; improper homogenization processCheck the required HLB value of the oil phase, adjust the dosage of LAE-9 or compound with other emulsifiers; optimize homogenization speed and time Cloudiness/poor transparency in water-based productsExcessive solubilization; incompatibility between fragrance or active ingredients and the system; too low temperatureReduce the amount of solubilized substances; adjust the solubilization sequence (first premix LAE-9 with the solubilized substance); appropriately increase the system temperature Skin irritation reactionExcessive contact concentration; individual sensitivity differencesImmediately rinse with plenty of soap and water (P302+P352); check whether the LAE-9 content in the formulation is within the recommended safe range Eye contactilure to wear protective goggles during operation; splashingImmediately rinse with water for several minutes, remove contact lenses if present, then continue rinsing; seek medical attention immediately (P305+P351+P338+P310) Abnormal product properties (discoloration/stratification/off-odor)Improper storage temperature; unsealed container leading to moisture absorption; beyond shelf life; microbial contaminationCheck whether the storage temperature is within the range of 5°C-40°C; confirm container seal integrity; verify production batch number and shelf life Leakage accidentPackaging damage; operational errorContain and collect using inert materials such as sand, vermiculite; place in a sealed container; dispose of as hazardous waste (P391+P501) Application Recommendations Formulation Development Phase: It is recommended to start with small-scale trials and gradually scale up. The recommended dosage of LAE-9 in daily chemical products is typically 1%-5% (as an emulsifier) or 0.5%-2% (as a solubilizer). The specific dosage should be determined through experiments based on the formulation system. In industrial fields such as textiles, pesticides, and metalworking, the dosage varies widely and should be optimized based on process conditions and performance requirements. Compounding Use: LAE-9 has good compatibility with anionic, cationic, and other nonionic surctants. If the effect of using it alone is not satisctory, consider compounding with other emulsifiers to adjust the HLB value, or introduce auxiliary emulsifiers to improve system stability. How to Obtain Official Technical Support from Guoli Chemical Currently, the product database does not include specific customer service hotlines or technical support email details. It is recommended to obtain official technical support through the following channels: Visit the official website of Hai'an Guoli Chemical Co., Ltd., look for the "Technical Support" or "Contact Us" section to obtain the latest technical service hotline and online consultation portal Contact the sales manager or regional business representative from whom you purchased the product, who can directly coordinate technical engineers for one-on-one guidance Consult the "Chemical Safety Data Sheet" (SDS/MSDS) accompanying the product, which typically contains emergency contact numbers and manucturer technical consultation methods Prepare the following information for rapid diagnosis by technical personnel: product batch number, purchase date, specific description of the problem phenomenon, usage conditions (temperature/pH/concentration/compounding ingredients, etc.), process flow brief description, and any troubleshooting measures already taken Emergency Handling Priority If an emergency involves personal injury or environmental leakage, handle it according to the following priority: ① Personnel first aid (refer to SDS Section 4.1) → ② Leakage control and isolation (refer to SDS Section 4.2) → ③ Contact local emergency management authorities → ④ Notify Guoli Chemical. LAE-9 is extremely toxic to aquatic life (H400/H410). It is strictly prohibited to directly discharge leaked material or rinse water into surce water, sewers, or soil.

Question 3

How to purchase Lauric Acid Polyoxyethylene Ether LAE-9? What is the minimum order quantity?

Accepted Answer

For the specific purchase of Lauric Acid Polyoxyethylene Ether LAE-9, please directly contact the Guoli Chemical sales team. The minimum order quantity is not explicitly listed in the database; it is recommended to order with the smallest packaging unit of a 50kg plastic drum as the starting point. Detailed Description Lauric Acid Polyoxyethylene Ether LAE-9 (CAS: 9004-81-3) is a nonionic surctant product primarily supplied by Hai'an Guoli Chemical Co., Ltd. According to the database information of Guoli Chemical, the latest price update for this product is June 10, 2026, with the price unit being RMB/ton. However, the specific unit price is shown as "Pending Inquiry". It is recommended to contact the Guoli Chemical sales team directly for real-time quotes, as chemical raw material prices fluctuate with market conditions. Regarding the minimum order quantity (MOQ), the database does not provide explicit data. However, based on the product packaging specifications, LAE-9 is available in three packaging forms: 50kg plastic drum, 200kg plastic drum, and IBC tote. Typically, the 50kg plastic drum is the smallest packaging unit. Whether single-drum orders are permitted or a tonnage threshold applies needs to be confirmed with the sales staff. Additionally, if sample testing is required, you can also request small samples from the sales team to verify the product's compatibility in your formulation. Procurement Contact and Packaging Information ItemDetails Product Full NameLauric Acid Polyoxyethylene Ether LAE-9 (Polyoxyethylene (9) Laurate) CAS Number9004-81-3 Packaging Specifications50kg plastic drum / 200kg plastic drum / IBC tote Price UnitRMB/ton Price Update Date2026-06-10 Price NotesThe above price is for reference only. For the actual price, please contact the sales team to obtain the latest quote. Minimum Order QuantityNot explicitly stated in the database; it is recommended to inquire based on the basic unit of 50kg plastic drum. Procurement MethodContact the sales department of Hai'an Guoli Chemical Co., Ltd. directly. Recommendations Before Procurement Before placing a formal order, it is recommended to make the following preparations to communicate efficiently with the sales team: Specify the application: Inform the sales representative of your application field (e.g., daily chemicals, textiles, pesticides, metalworking fluids, etc.) to receive the most suitable grade and formulation recommendations. Estimate the quantity: Provide the expected monthly/annual usage to obtain more accurate tiered pricing and supply cycle information. Request documents: Simultaneously request the product Certificate of Analysis (COA), Safety Data Sheet (SDS/MSDS), and samples to ensure the product meets your technical specifications and safety compliance requirements. Precautions LAE-9 is classified as a hazardous chemical under GHS (Acute Toxicity Category 4, Skin Irritation Category 2, Serious Eye Damage Category 1, Hazardous to the Aquatic Environment Category 1). After procurement, it must be stored according to regulations (temperature 5°C to 40°C, cool and ventilated place). Chemical safety goggles and impermeable gloves must be worn during handling. The product is hygroscopic. Upon arrival, check the sealing of the packaging promptly and use it as soon as possible after opening. Before transportation, ensure the logistics provider has the qualification to transport chemicals to ensure compliant delivery.

Question 4

Does Polyoxyethylene Lauryl Ether LAE-9 meet environmental requirements? Can a test report be provided?

Accepted Answer

Polyoxyethylene Lauryl Ether LAE-9 is extremely toxic to aquatic organisms, requiring strict discharge control, and is not a "green and environmentally friendly" product; regarding test reports, no relevant document information is currently included in the database. Detailed Explanation Polyoxyethylene Lauryl Ether LAE-9 (PEG-9 Laurate) presents clear risk warnings in terms of environmental compliance. According to the product safety data, its GHS hazard classification explicitly indicates: Hazardous to the aquatic environment - Acute hazard, Category 1 (H400) and Hazardous to the aquatic environment - Long-term hazard, Category 1 (H410). The hazard statement H410 means "Very toxic to aquatic life with long-lasting effects," which is the highest classification level for aquatic environmental hazards under the GHS system. From an environmental regulatory perspective, LAE-9 is not one of the "green surctants" or "readily biodegradable surctants" currently promoted in the industry. This product must not be directly discharged into water bodies, sewers, or soil. Wastewater after use must undergo professional treatment to ensure compliance with discharge standards. Under the EU REACH regulation and China's "Environmental Management Measures for New Chemical Substances," this product is classified as a chemical requiring strict control. When using it, enterprises should dispose of waste liquids containing LAE-9 as hazardous waste through qualified third-party agencies (P501). If the user's end-use application requires environmental certifications (such as EU Ecolabel, Nordic Swan Ecolabel, China Environmental Label, etc.), it is recommended to evaluate whether environmentally friendly alternatives (such as alkyl polyglycosides APG, amino acid-based surctants, etc.) can be used. If LAE-9 must be used, the environmental risks and control measures should be fully explained in the environmental impact assessment documents. Regarding Test Reports Currently, the Guoli Chemical Product Database does not include SGS test reports, ROHS test reports, REACH compliance declarations, or biodegradability test reports for LAE-9. To obtain formal test reports (including but not limited to: physical and chemical property test reports, heavy metal/hazardous substance residue tests, acute aquatic toxicity tests, etc.), it is recommended to directly contact the sales or technical department of Guoli Chemical for the latest batch test reports and relevant compliance documents. Precautions Prohibition of Direct Discharge: Wastewater containing LAE-9 is strictly prohibited from being discharged into natural water bodies, municipal pipelines, or soil. It must be treated according to hazardous waste regulations. Leak Emergency Response: In case of a leak, use inert absorbent materials to contain and collect the spill, place it in a sealed container, and prevent it from entering the environment (P391). Environmental Compliance Self-assessment: If the end product is intended for export to the EU, it is recommended to confirm whether the product has completed REACH registration and to verify whether the SVHC content meets the limit values. Alternative Evaluation: If the formulation requires a high level of environmental friendliness, consult the technical team of Guoli Chemical for more environmentally friendly emulsifier alternatives.

Question 5

What are the advantages of Lauryl Polyoxyethylene Ether LAE-9 compared to other similar products?

Accepted Answer

According to the technical data from Guoli Chemical, compared to similar products, the core advantages of Lauryl Polyoxyethylene Ether LAE-9 lie in its **balanced comprehensive performance, excellent emulsifying and solubilizing ability, and wide industrial applicability**. It does not excel in a single indicator but acts as an "all-rounder," combining high emulsifying power, good chemical stability, and multifunctional auxiliary properties, making it a cost-effective choice in many formulations. Specifically, the advantages of LAE-9 are reflected in the following aspects: #### 1. High-efficiency Emulsifying and Solubilizing Core Performance Unlike some similar products that require strong compounding with other surctants to achieve the desired effect, LAE-9 alone demonstrates strong emulsifying ability. * **Excellent O/W Emulsifier**: Its HLB value is as high as **13.6**, making it highly suitable for oil-in-water (O/W) systems. In daily chemical products such as creams and lotions, it can easily build stable and fine emulsions, which is also a key performance in pesticide emulsifiable concentrates, metalworking fluids, etc. * **Outstanding Solubilizer**: It can effectively solubilize fragrances, oily active ingredients, etc., into water-based systems to form clear and transparent products, which is crucial for producing high-end toners and transparent shampoos. #### 2. Excellent Formulation Compatibility and Chemical Stability As a nonionic surctant, LAE-9 has very stable chemical properties. * **Acid, Alkali, and Hard Water Resistance**: It exhibits excellent stability in acidic, alkaline, and high-hardness water environments, with a much wider adaptability range than products that easily il in acidic or high-hardness water. * **Wide Compatibility**: It can be well compounded with anionic, cationic, and other nonionic surctants for synergistic effects, providing formulators with great flexibility without worrying about charge conflicts. * **High Temperature Resistance**: Its cloud point **>100°C (1% aqueous solution)** means that in high-temperature processes or applications (e.g., industrial cleaning), it will not il due to "cloud point precipitation" like low-cloud-point nonionic surctants, ensuring cleaning and emulsifying effects. #### 3. Multifunctional Auxiliary Properties LAE-9 is not only an emulsifier; its excellent wetting, dispersing, and penetrating abilities make it multi-tasking. * **Textile Industry**: It can be used as a leveling agent (preventing uneven dyeing), softener, and antistatic agent, running through multiple textile processing stages. * **Industrial Hard Surce Cleaning**: It can quickly penetrate and remove heavy oil stains and carbon deposits from metal surces for deep cleaning. #### 4. Specific Technical Parameter Support Its advantages are ultimately reflected in strict product specifications. | Technical Indicator | Value | Advantage Interpretation | | :--- | :--- | :--- | | **HLB Value** | **13.6** | Precisely positioned as an efficient O/W emulsifier and solubilizer, especially suitable for water-based formulations. | | **Cloud Point (1% aqueous solution)** | **>100°C** | Excellent high-temperature performance, stable in high-temperature washing and industrial operations, not easily precipitating and iling. | | **Active Content** | **≥99%** | High active ingredient, low dosage, outstanding cost-effectiveness, almost no ineffective diluent. | | **Acid Value** | **≤5.0 mg KOH/g** | Very low acid value, minimal corrosion risk to the formulation system and packaging containers, and can reduce odor. | | **Saponification/Hydroxyl Value** | **Approx. 90-100 mg KOH/g** | Precise corresponding values indicate narrow molecular weight distribution, ensuring high batch-to-batch consistency. | | **pH Value (1% aqueous solution)** | **5.0 - 7.0** | Nearly neutral, mild to skin, low impact on pH buffering of the formulation system, better compatibility. | | **Ion Type** | **Nonionic** | High tolerance to hard water and electrolytes, can be compounded with various surctants, maximum application flexibility. | **Application Suggestions:** In daily chemical formulations, it can be used alone as an O/W emulsifier, recommended dosage **1-5%**; in pesticide emulsifiable concentrates, as an emulsifier component, typically **5-15%**; in industrial cleaners as a wetting and detergency component, dosage **2-10%**. When using, it can be directly added to the oil or water phase for mixing, or slowly added to water under stirring for dilution. **Precautions:** Although LAE-9 has excellent performance, it is an ester compound. **Long-term high-temperature storage in strong acid or strong alkali environments** may cause hydrolysis of the ester bond, affecting performance. The pH and storage temperature of the final product should be considered during formulation design. Follow safety recommendations during operation, especially noting its potential to cause irritation to skin and eyes, and strictly avoid direct discharge into water bodies.

Question 6

How to store polyethylene glycol monolaurate LAE-9? What is the shelf life?

Accepted Answer

Polyethylene glycol monolaurate LAE-9 should be stored sealed in a cool, dry, and well-ventilated environment, with a temperature preferably maintained at 5°C to 40°C. Under these conditions, the shelf life is typically 12-24 months. Detailed Description Polyethylene glycol monolaurate LAE-9 (PEG-9 Laurate) is a non-ionic surctant. Although its chemical properties are relatively stable, proper storage methods are crucial to maintaining its product performance and extending its service life. The product itself is not flammable, but high temperatures may promote decomposition, so it must be kept away from heat sources, sparks, and open flames. The core principles of storage are moisture-proof, high-temperature-proof, and contamination-proof. Due to the presence of polyoxyethylene segments in the molecular structure of LAE-9, it has certain hygroscopic properties. Exposure to humid air will gradually absorb moisture, leading to a decrease in the content of active ingredients and potentially introducing the risk of microbial growth. At the same time, it should be strictly avoided from being stored together with incompatible substances such as strong oxidizers and strong acids to prevent chemical reactions that could damage the product structure. Regarding the shelf life, there is no official shelf life data marked in the National Power Chemical database for this product. According to the general standards of the non-ionic surctant industry, under the strict compliance with the above storage conditions (sealed, cool, dry, 5°C~40°C), the recommended usage period for polyethylene glycol monolaurate LAE-9 is usually 12 to 24 months from the date of production. It is recommended to follow the production batch number and expiration date marked on the outer packaging of the product, and use it up as soon as possible after opening the drum to avoid prolonged exposure to the air. Storage Conditions Key Points Storage ElementSpecific Requirement Temperature Range5°C to 40°C, avoid extreme temperatures and direct sunlight Environmental RequirementCool, dry, and well-ventilated dedicated warehouse Container StatusKeep container tightly closed to prevent moisture absorption and contamination Substances to AvoidStrong oxidizers, strong acids and other incompatible substances Ignition Source ControlKeep away from heat sources, sparks, and open flames Environmental ProtectionStorage area should be equipped with containment cilities to prevent leakage from entering water bodies, sewers, or soil Empty Container DisposalEmpty containers may retain product residue and should be properly managed and disposed of as hazardous waste Usage Recommendations In practical use, it is recommended to follow the first-in-first-out principle, prioritizing the use of earlier batch products. If the product is stored at low temperatures for a long time, it may appear turbid or layered. This is a physical change rather than chemical deterioration. Before use, allow the product to return to room temperature (20°C~25°C) and stir moderately to restore a uniform state; this does not affect the performance of the product. For products stored for more than 12 months, it is recommended to conduct small-scale tests before use, focusing on key indicators such as appearance (color, transparency, presence of layering or precipitation), emulsifying performance, and pH value to ensure they are within normal range. Only after confirming the product is qualified should it be put into normal use. Precautions The workplace should maintain good ventilation, and install local exhaust systems when necessary. The storage area should be equipped with emergency shower cilities and eyewash stations to handle accidental spills or contact. It is strictly prohibited to discharge the product directly into water bodies or sewers - this product is highly toxic to aquatic life with long-lasting effects (GHS classification: Hazardous to the aquatic environment Category 1). Clothing contaminated with this product should be cleaned before reuse.

Question 7

What safety precautions should be taken when using lauric acid polyoxyethylene ether LAE-9?

Accepted Answer

Lauric acid polyoxyethylene ether LAE-9 has skin irritation, serious eye damage risk, and aquatic toxicity. During operation, protective equipment must be strictly worn to avoid skin and eye contact, and it is strictly forbidden to discharge into water environments. Detailed Explanation Lauric acid polyoxyethylene ether LAE-9 (PEG-9 Laurate) is a nonionic surctant. Although widely used, according to the Globally Harmonized System of Classification and Labelling of Chemicals (GHS), this product is a hazardous chemical involving four major categories of risks: acute toxicity, skin corrosion/irritation, serious eye damage, and hazards to the aquatic environment. Operators must undergo professional training and fully understand its hazardous characteristics before proceeding with operations. The core principles for safe use can be summarized as "three preventions and one discharge": prevent contact (skin and eyes), prevent ingestion (mouth and respiratory tract), prevent environmental release, and be prepared for emergency response. The workplace should maintain good ventilation, install local exhaust systems if necessary, and the operation area should be equipped with emergency shower and eyewash stations. It is particularly important to emphasize that this product is extremely toxic to aquatic life with long-lasting effects (both acute and chronic aquatic toxicity are Category 1). Therefore, it is absolutely prohibited to discharge the product or wastewater containing the product directly into sewers, surce water, or soil. Waste liquid and contaminated materials must be disposed of in accordance with hazardous waste regulations. Safety Classification and Hazard Statements (GHS) GHS Hazard Classification Category Hazard Code Hazard Statement Acute toxicity (oral) Category 4 H302 Harmful if swallowed Skin corrosion/irritation Category 2 H315 Causes skin irritation Serious eye damage/eye irritation Category 1 H318 Causes serious eye damage Hazardous to the aquatic environment - acute hazard Category 1 H400 Very toxic to aquatic life Hazardous to the aquatic environment - long-term hazard Category 1 H410 Very toxic to aquatic life with long-lasting effects Safe Handling and Storage Requirements Personal Protective Equipment (PPE) Eye protection: Wear chemical safety goggles to prevent splashes from entering the eyes. Hand protection: Wear impermeable gloves, nitrile rubber material is recommended. Body protection: Wear appropriate protective clothing to avoid skin exposure. Respiratory protection: In poorly ventilated areas or where vapors/mist are generated, wear a respirator suitable for particles or vapors. Handling Precautions Do not eat, drink, or smoke while using this product (P270). Wash hands, ce, and any exposed skin thoroughly after handling (P264). Avoid inhaling vapors or mists; avoid contact with skin and eyes. Contaminated clothing should be washed before reuse. Avoid release to the environment (P273); strictly prohibit discharge into water bodies, sewers, or soil. Storage Conditions Store in a cool, dry, well-ventilated designated storage area. Storage temperature should be kept between 5°C and 40°C, avoid extreme temperatures and direct sunlight. Keep containers tightly closed to prevent moisture absorption and contamination. Keep away from incompatible materials (e.g., strong oxidizers, strong acids), heat sources, sparks, and open flames. Storage area should have containment measures to prevent leakage from entering the environment. Empty containers may contain product residues and should be disposed of as hazardous waste (P501). Emergency Response Measures Incident Type Emergency Response Method Skin contact Immediately remove contaminated clothing and wash skin with plenty of soap and water (P302+P352). If irritation persists or discomfort occurs, seek medical attention. Eye contact Immediately rinse cautiously with plenty of clean water or saline for several minutes. Remove contact lenses if present and easy to do, then continue rinsing (P305+P351+P338). Seek immediate medical attention (P310). Inhalation Move the person to fresh air. If feeling unwell, immediately call a poison control center or seek medical attention. Ingestion Do NOT induce vomiting. Rinse mouth with water (P330). If feeling unwell, seek medical attention immediately (P301+P312). Leakage Evacuate non-essential personnel, wear PPE; contain and collect with inert absorbent material (e.g., sand, vermiculite), place in a closed container (P391); dispose of as hazardous waste (P501). Prevent entry into sewers and water bodies. Fire This product is not flammable, but high temperatures may cause decomposition to produce irritating or toxic fumes. Use dry powder, carbon dioxide, water spray, or alcohol-resistant foam for firefighting. Firefighters must wear self-contained breathing apparatus and full protective clothing. Notes The above information is based on the current GHS classification criteria. Users should conduct risk assessments based on specific work scenarios and comply with local regulations. For specific operations, always refer to the product's Safety Data Sheet (SDS). This content is a summary of safety points and cannot replace the SDS. Waste products and contaminated materials are hazardous waste and must not be discarded arbitrarily. They should be handled by a qualified professional organization. In the event of a serious accident, immediately call the local emergency number and poison control center for help.

Question 8

How to use Polyoxyethylene Lauryl Ether LAE-9? What is the recommended dosage?

Accepted Answer

The dosage of Polyoxyethylene Lauryl Ether LAE-9 varies depending on the specific application and formulation system. The Guoli Chemical product database does not provide a unified recommended dosage parameter. The following is a general reference range based on different industry applications, and the specific dosage needs to be determined through formulation experiments. Detailed Explanation Polyoxyethylene Lauryl Ether LAE-9 is a nonionic surctant with an HLB value of approximately 13.6, featuring good water solubility and O/W emulsifying ability. Its usage and dosage highly depend on the specific application scenario: when used as the primary emulsifier, the dosage is relatively high; when used as an auxiliary wetting or solubilizing component, the dosage is relatively low. In actual formulation development, the dosage is influenced by multiple ctors such as the type and content of the oil phase, system pH, temperature conditions, and synergistic effects with other surctants. Therefore, it is recommended to optimize the best addition ratio through orthogonal experiments or gradient experiments. In terms of operation, LAE-9 is a light yellow to yellow transparent liquid at room temperature (may appear as a paste at low temperatures) and is soluble in water, ethanol, and other polar solvents. During formulation, it is recommended to pre-disperse or dissolve it in an appropriate amount of warm water (40~50°C) first, then add it to the main system and stir evenly. For high-content formulations, it can be premixed with the oil phase before emulsification; when used as a solubilizer, LAE-9 is usually mixed with the fragrance or oily components to be solubilized first, then water is slowly added and stirred to obtain a clear and transparent solubilized system. Application Recommendations The following are general reference dosages for various application scenarios of LAE-9 based on the Guoli Chemical product database (data sourced from industry experience, for reference only): Application FieldFunctional RoleReference Dosage Daily chemical creams/lotionsO/W primary emulsifier1.0%~5.0% Lotions/shampoosSolubilizer for fragrances and oily ingredients0.5%~3.0% Household liquid detergentsDetergency/wetting component2.0%~8.0% Industrial liquid detergentsEmulsifying/degreasing component3.0%~10.0% Textile leveling agent (working solution)Leveling/penetrating auxiliary0.5~2.0 g/L Pesticide emulsifiable concentrate/emulsionEnvironmentally friendly emulsifier5.0%~15.0% Metalworking fluidsWetting/emulsifying auxiliary1.0%~5.0% Leather tliquoring agentEmulsifying/dispersing carrier2.0%~8.0% Technical Parameters The following key parameters can help assess the suitability of LAE-9 in formulations (data source: Guoli Chemical product database): Parameter NameValue AppearanceLight yellow to yellow transparent liquid or paste (varies with temperature) Active content≥99% HLB value13.6 pH value (1% aqueous solution)5.0~7.0 Cloud point (1% aqueous solution)>100℃ Surce tension (1% aqueous solution, 25℃)Approx. 30 mN/m Critical micelle concentration (CMC, 25℃)Approx. 0.1 g/L Freezing point<-5℃ Precautions Safety protection: This product is classified as an irritating chemical under GHS (H315 skin irritation, H318 serious eye damage). It is necessary to wear chemical safety goggles and impermeable gloves (such as nitrile rubber) during operation to avoid contact with skin and eyes. Environmental hazards: It is extremely toxic to aquatic organisms (H410). It is strictly forbidden to discharge waste liquid containing this product directly into water bodies, sewers, or soil. Residual waste should be disposed of as hazardous waste. Incompatibility: LAE-9 is an ester-type nonionic surctant. The ester bonds will gradually hydrolyze under strong acidic or alkaline conditions. For long-term use, control the system pH within the range of 5~9 to maintain optimal stability. Storage conditions: Storage temperature should be kept between 5°C and 40°C, and containers should be kept tightly closed to prevent moisture absorption. At low temperatures, turbidity or pasting may occur. After warming to room temperature and stirring evenly, normal use can still be achieved without affecting product performance.

Question 9

What are the main industries and processes where Lauryl Polyoxyethylene Ether LAE-9 is applied?

Accepted Answer

Lauryl Polyoxyethylene Ether LAE-9 is a multifunctional nonionic surctant widely used in many industries such as daily chemical care, household and industrial cleaning, textile printing and dyeing, pesticide formulations, metal processing, and leather treatment. Detailed Description Lauryl Polyoxyethylene Ether LAE-9 (PEG-9 Laurate) is an ester-type nonionic surctant with lauric acid as the hydrophobic group and 9 ethylene oxide (EO) units. With its balanced HLB value and excellent emulsifying, solubilizing, wetting, and dispersing capabilities, LAE-9 plays an irreplaceable role in many industrial and domestic formulations, especially in O\/W (oil-in-water) emulsion systems and formulations requiring high compatibility. The molecular structure of LAE-9 gives it unique performance advantages: the presence of ester bonds makes it milder and more biodegradable than similar ether-type products; the hydrophilic chain length of 9 EO units provides good water solubility while maintaining excellent oil-water balance. This allows it to maintain chemical stability in acidic, alkaline, and hard water conditions, and it can be well compounded with anionic, cationic, and other nonionic surctants for synergistic effects. Application Fields and Processes 1. Daily Chemical and Personal Care Industry Cream\/Lotion Process: As an O\/W emulsifier, it builds a stable oil-in-water system in the homogenization emulsification process, ensuring a fine and uniform texture, providing a refreshing and non-greasy feel. Transparent Water-based Products: As a solubilizer, it dissolves fragrances, essential oils, and oil-soluble active ingredients into transparent formulas such as toners, shampoos, and body washes, making the finished product clear and bright, enhancing product quality. 2. Household and Industrial Liquid Detergents Household Cleaning Products: Widely used in laundry liquids, dishwashing liquids, and multi-purpose hard surce cleaners, effectively emulsifying and removing stubborn stains like grease and sebum, while enhancing penetration into brics. Industrial Cleaning: In professional cleaning formulations for textiles, hotels, and catering, it provides strong emulsifying and degreasing effects, suitable for high-temperature and high-alkali cleaning environments. 3. Textile Printing and Dyeing Auxiliaries Leveling Dyeing Process: As a component of leveling agents, it promotes uniform adsorption and penetration of dyes on fiber surces, effectively preventing color spots, color differences, and other dyeing defects, improving the first-time dyeing success rate and quality. Softening and Antistatic Finishing: Applied to the fiber surce, it reduces the coefficient of friction, giving the bric a soft and smooth feel while eliminating static buildup, optimizing finishing processes and enhancing wearing comfort. 4. Pesticide Formulations Emulsifiable Concentrates and Microemulsions: As an environmentally friendly emulsifier, it can automatically disperse pesticide technical materials into extremely fine droplets and stably suspend them in water, enhancing the wetting and spreading properties of the spray liquid on plant leaves and target surces, ensuring uniform application concentration and stable efficacy. 5. Metalworking Fluids Cutting and Grinding Fluids: During metal cutting, grinding, stamping, and other processes, it provides lubricating and cooling effects, effectively protecting tools and workpieces, extending equipment life, and preventing metal surce corrosion. Industrial Hard Surce Cleaning: Quickly stripping and emulsifying heavy grease and carbon deposits on metal parts, achieving deep cleaning. 6. Leather Industry Leather tliquoring Process: As an emulsifying and dispersing component in tliquoring agents, it helps oils penetrate evenly into leather fibers, making the finished leather soft, full, and elastic, improving quality and feel. 7. Synthetic Fiber Oils Spinning and Drawing Processes: In the spinning and drawing of synthetic fibers, it provides smoothness and cohesion, reducing filament breakage, eliminating static buildup, ensuring smooth production and fiber quality. Technical Parameters ParameterDescription Product NameLauryl Polyoxyethylene Ether LAE-9 INCI\/Chemical NamePEG-9 Laurate CAS Number9004-81-3 AliasesPEG-9 Laurate, Polyoxyethylene (9) Laurate, Polyethylene Glycol-9 Laurate, Polyoxyethylene Monolaurate Product TypeNonionic Surctant (Ester type) EO Number9 Emulsion TypeO\/W (Oil-in-Water) IonicityNonionic Chemical StabilityResistant to acid, alkali, and hard water Main FunctionsEmulsifying, solubilizing, wetting, dispersing, penetrating Appearance (Reference)Not available HLB ValueNot available Application Recommendations Formulation Advice: LAE-9 is suitable as a primary or auxiliary emulsifier in O\/W emulsion systems. In cleaning formulations, it is recommended to combine with anionic surctants (such as LAS, AES) for synergistic effects to enhance detergency and foam performance. When used as a solubilizer in transparent water-based products, the typical dosage is 1-5 times the amount of fragrance\/oily components, but the actual amount should be optimized through experiments. Compatibility: LAE-9 can be well compounded with anionic, cationic, and other nonionic surctants, maintaining stable performance in acidic, alkaline, and hard water environments, making it very suitable for developing complex formulations. Dosage Reference: The specific usage amount varies depending on the application scenario and formulation requirements. It is recommended to determine the optimal dosage through small-scale experiments. For emulsification, a typical dosage is 2%-5% of the total formula weight; for cleaning, 1%-3%. Precautions Safety Protection: This product is classified as a hazardous chemical under GHS - harmful if swallowed (H302), causes skin irritation (H315), causes serious eye damage (H318), very toxic to aquatic life with long-lasting effects (H410). When handling, be sure to wear chemical safety goggles, impermeable gloves (such as nitrile rubber), and protective clothing. Environmental Control: Do not discharge this product directly into water bodies, sewers, or soil. Collect spills with inert absorbent materials and dispose of as hazardous waste. Wash hands and ce thoroughly after operation. Storage Conditions: Store in a cool, dry, well-ventilated dedicated warehouse at temperatures between 5°C and 40°C, keep containers tightly closed, away from strong oxidizers and strong acids. First Aid Measures: In case of eye contact, immediately rinse with plenty of water for several minutes and seek medical attention; skin contact, wash with soap and water; if swallowed, do not induce vomiting, seek immediate medical attention.

Question 10

What are the physicochemical technical parameters of lauric acid polyoxyethylene ether LAE-9?

Accepted Answer

Lauric acid polyoxyethylene ether LAE-9 is a nonionic surctant with an HLB value of approximately 13.6. At room temperature, it appears as a light yellow transparent liquid or paste, possessing excellent water solubility and emulsifying/solubilizing capabilities, with a complete set of physicochemical parameters. Basic Product Information Lauric acid polyoxyethylene ether LAE-9 (CAS: 9004-81-3), chemical name Polyoxyethylene (9) Laurate (PEG-9 Laurate), molecular formula C₁₁H₂₃COO(C₂H₄O)nH (n≈9), molecular weight approximately 595. The raw material is derived from the addition reaction of lauric acid and ethylene oxide, belonging to the saturated tty acid ester type nonionic surctant, with monoester content ≥95%, diester content ≤5%, and free PEG ≤3%. The product appearance changes with temperature; at room temperature, it is a light yellow to yellow transparent liquid or paste, with a freezing point below -5°C, thus remaining flowable even at low temperatures. Physicochemical Technical Parameters Parameter Item Indicator\/Value Test Condition Product TypeNonionic Surctant— CAS Number9004-81-3— Molecular FormulaC₁₁H₂₃COO(C₂H₄O)nH, n≈9— Molecular WeightApprox. 595— AppearanceLight yellow to yellow transparent liquid or pasteRoom temperature (varies with temperature) Freezing Point< -5°C— DensityApprox. 1.03 g\/cm³25°C Refractive IndexApprox. 1.45620°C Flash Point> 150°CClosed cup method pH Value (1% aqueous solution)5.0～7.025°C pH Value (5% aqueous solution)5.0～7.025°C Active Matter Content≥99%— Solid Content≥99%— Moisture Content≤1.0%— HLB Value13.6Griffin method Cloud Point (1% aqueous solution)> 100°C1% active matter aqueous solution Surce TensionApprox. 30 mN\/m1% aqueous solution, 25°C Critical Micelle Concentration (CMC)Approx. 0.1 g\/L25°C Kinematic ViscosityApprox. 100～200 mm²\/s40°C Low Shear ViscosityApprox. 150 mPa·s25°C, low shear Acid Value≤5.0 mg KOH\/g— Saponification ValueApprox. 90～100 mg KOH\/g— Hydroxyl ValueApprox. 90～100 mg KOH\/g— Iodine Value≤1.0— Unsaturation< 0.2 mol\/kgSaturated product Monoester Content≥95%— Diester Content≤5%— Free PEG≤3%— Foam Performance (Initial)Approx. 80 mmRoss-Miles foam meter, 0.5% solution, 40°C Foam Performance (5 minutes)Approx. 50 mmRoss-Miles foam meter, 0.5% solution, 40°C Penetration Power> 300 secondsCanvas sedimentation method, 1% solution, 25°C Heavy Metals (as Pb)≤10 mg\/kg— Arsenic (As)≤2 mg\/kg— SolubilitySoluble in water, ethanol and other polar solvents— HygroscopicityHygroscopic— Chemical StabilityStable at room temperature; ester bonds gradually hydrolyze under strong alkaliAvoid prolonged storage under strong acids, strong alkalis, and high temperature Amine ValueNone— Free Phosphoric AcidNone— Packaging Specifications50kg plastic drum \/ 200kg plastic drum \/ IBC tote— Note: The above parameters are obtained from the product database of Guoli Chemical and are ctory inspection indicators. Application Recommendations LAE-9 has an HLB value of 13.6, which lls within the ideal range for oil-in-water (O\/W) emulsifiers, making it particularly suitable for emulsification and solubilization in daily chemical products such as creams, lotions, shampoos, and body washes. In liquid detergents, a recommended addition amount of 2% to 8% can significantly enhance oil removal and wetting spreading performance. As an environmentally friendly emulsifier in pesticide emulsifiable concentrates, a recommended dosage of 5% to 15% can effectively improve the wetting and adhesion of the spray liquid on crop leaves. When used as a leveling agent in textile dyeing and printing, a working liquor concentration of 0.5% to 3% (on bric weight) is recommended. In metalworking fluids, the recommended addition amount is 3% to 10%, with better results when used in combination with anionic surctants. Precautions Safety Protection: The product is classified under GHS as an irritant and hazardous to the aquatic environment (H315 Skin irritation, H318 Serious eye damage, H410 Aquatic toxicity). Chemical safety goggles and anti-corrosion gloves must be worn during operation.

Lauric Acid Ethoxylate LAE-9

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Product Overview

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PEG / Fatty Acid Ester Applications

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Property	Value
CAS No.	9004-81-3
Molecular Formula	C11H23COO(C2H4O)nH, n≈9
Appearance	Pale yellow to brownish-yellow liquid
Ionic Type	Nonionic
Avg. Molecular Weight	Approx. 595
Cloud Point	>100°C (1%aq. soln.)
Active Content	≥99%
pH Value(1%)	5.0~7.0
pH Value(5%)	5.0~7.0
Iodine Value	≤1.0
Solubility	Soluble in water
Surface Tension	~30 (1%aq. soln., 25°C, mN/m)
CMC	~0.1 g/L (25℃)
Acid Value	≤5.0
Saponification Value	~90~100 (mg KOH/g)
Hydroxyl Value	~90~100 (mg KOH/g)
Moisture	≤1.0
Density	~1.03 (25°C, g/cm³)
Kinematic Viscosity	~100~200 (40°C, mm²/s)
Refractive Index	~1.456 (20°C)
Flash Point	>150°C
Hygroscopicity	Hygroscopic
Chemical Stability	Stable at room temperature; avoid prolonged exposure to strong acids/alkalis and high temp
Penetration	>300 s (1% aq., 25°C, canvas disc)
Foam Property	~80 mm initial, ~50 mm after 5 min (0.5%, 40°C, Ross-Miles)
Alkali Resistance	Resistant to mild alkali; ester bonds hydrolyze under strong alkali
Unsaturation	Saturated, <0.2 mol/kg
Viscosity	~150 mPa·s (25℃)
Melting Point	Freezing point <-5°C; liquid at ambient temp.
Monoester Content	≥95%
Diester Content	≤5%
Low Shear Viscosity	~150 mPa·s (25℃, low shear)
Solid Content	≥99%
Free Alcohol	≤3% (free PEG)
Heavy Metal	≤10 mg/kg (as Pb)
Arsenic	≤2 mg/kg

Lauric Acid Ethoxylate LAE-9

Product Details

Applications

Properties

Safety

Product Overview

Performance Features

Packaging and Storage

PEG / Fatty Acid Ester Applications

Product Properties

Safety

GHS

Handling

Storage

First Aid

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