Question 1

Is L-62 Poloxamer harmful to humans? Does it have an impact on the environment?

Accepted Answer

L-62 Poloxamer is a low-toxicity substance to humans under normal conditions of use, with the main risks being skin and eye irritation; it is environmentally friendly, readily biodegradable, and has low aquatic toxicity. Detailed Explanation L-62 Poloxamer (Poloxamer 182) is a nonionic block copolymer surctant. From a toxicological perspective, its acute oral toxicity is extremely low (LD₅₀ rat > 5,000 mg\/kg), classified as "practically non-toxic" according to toxicological classification. Available scientific data indicates that this product does not have germ cell mutagenicity, carcinogenicity, or reproductive toxicity, and does not cause skin sensitization, and is not classified under these serious hazard categories according to the specified GHS hazard categories. However, this product is not completely harmless. According to the Globally Harmonized System of Classification and Labelling of Chemicals (GHS), L-62 Poloxamer is classified as Skin Irritant Category 2 (H315) and Serious Eye Damage\/Eye Irritant Category 2 (H319). This means that direct skin contact may cause mild discomfort, while eye contact can cause significant irritation, pain, tearing, and redness. Therefore, wearing protective goggles and gloves is a necessary safety measure during handling. In terms of environmental safety, L-62 Poloxamer performs well: it has low toxicity to aquatic organisms and is not expected to cause short-term or long-term negative ecological impacts; it is readily biodegradable, meaning it does not persist in the environment after release; and it does not have significant bioaccumulation potential, so it does not magnify along the food chain. Overall, under the premise of complying with standard usage and disposal practices, this product poses a low risk to the ecological environment. Safety Classification Overview Assessment DimensionResultClassification\/Description Acute Oral ToxicityLD₅₀ (rat) > 5,000 mg\/kgPractically non-toxic Skin IrritationGHS Category 2H315: Causes skin irritation Eye Damage\/IrritationGHS Category 2H319: Causes serious eye irritation Skin SensitizationNo sensitizationAvailable data indicates no skin allergy Genotoxicity\/CarcinogenicityNo relevant evidenceNot classified as a hazard category Aquatic ToxicityLow toxicityNo adverse ecological effects expected BiodegradabilityReadily biodegradableDoes not persist in the environment BioaccumulationNot significantNo risk of food chain magnification Application Recommendations L-62 Poloxamer is widely used in industrial and institutional cleaning, metalworking fluids, agrochemicals, emulsion polymerization, and coatings and pigment dispersion. Its low toxicity and good environmental compatibility make it suitable for use in various industrial formulations. In scenarios such as automatic dishwasher rinse aids and hard surce cleaners, where indirect contact with food or human body may occur, its safety has been fully verified. At typical formulation dosages (usually 0.1% to 5%), it does not pose a health risk to end users. Precautions Eye Protection: Always wear safety goggles compliant with EN 166 during handling. This product can cause serious irritation upon eye contact. In case of contact, immediately flush with water for at least 15 minutes and seek medical attention. Skin Protection: It is recommended to wear protective gloves. After handling, thoroughly wash exposed skin with mild soap and water. Do not use organic solvents for cleaning. Ventilation Conditions: Under normal liquid handling, volatility is low; however, if aerosols are generated or heating operations are performed, ensure adequate ventilation. Waste Disposal: Do not discharge this product into sewers or natural water bodies. Dispose of residues through qualified waste treatment cilities in accordance with local regulations. Storage Requirements: Store in a sealed container in a cool (5~30°C), dry, well-ventilated area, away from strong oxidizers, strong acids, and strong bases.

Question 2

What should I do if problems occur during the use of L-62 Poloxamer? How to obtain technical support?

Accepted Answer

When encountering problems with L-62 Poloxamer, first take emergency measures according to the product Safety Data Sheet (SDS) based on the type of problem, and contact the Guoli Chemical technical team for professional support. Common usage issues and troubleshooting directions As a polyether nonionic surctant, L-62 Poloxamer may encounter problems in practical applications typically concentrated in the following aspects: Unsatisctory emulsification effect - it is recommended to check whether the HLB value matches the target system, whether the feeding sequence is correct, and whether the system pH and temperature are within the applicable range; Abnormally high foam - check whether it is caused by synergistic foaming effects when compounded with other high-foam surctants, or whether there are alkaline saponifying substances in the system; Cloudiness or stratification at low temperatures is a normal physical phenomenon - this product is a clear liquid at room temperature, and may become more viscous or slightly cloudy at low temperatures. It usually returns to normal when warmed to room temperature and does not affect performance. In case of eye contact during operation, immediately open the eyelids and rinse continuously with clean water at room temperature for at least 15 minutes, and seek medical attention immediately; for skin contact, rinse with plenty of water and mild soap for at least 15 minutes. The product has very low acute oral toxicity (LD₅₀ rat > 5,000 mg/kg), but ingestion should still be avoided. Technical parameters ParameterData Product nameL-62 Poloxamer (Poloxamer 182) CAS number9003-11-6 Chemical typeNonionic block copolymer surctant (EO/PO block) Average molecular weightApproximately 2500 Appearance (room temperature)Colorless to slightly yellow transparent oily liquid Flash point>200°C GHS classificationSkin irritation Category 2 (H315); Serious eye damage/eye irritation Category 2 (H319) Acute oral toxicityLD₅₀ (rat) > 5,000 mg/kg Application recommendations To ensure usage effectiveness, it is recommended: Batch verification: When using for the first time or changing batches, first conduct small-scale tests to verify compatibility with the system before scaling up production. Storage conditions: Store in a cool, dry place at 5~30°C, keep the container tightly sealed, and keep away from strong oxidizing agents. Viscosity changes due to low temperature are normal; warming restores fluidity. Operational protection: Wear safety goggles and protective gloves, and maintain good ventilation in the workplace. Compounding suggestions: If compounding with other surctants or additives, it is recommended to conduct compatibility tests first to avoid performance degradation due to ionic conflicts or competitive adsorption. How to obtain technical support from Guoli Chemical Haian County Guoli Chemical Co., Ltd. provides comprehensive pre-sales, in-sales, and after-sales technical services for all products. You can obtain professional support through the following methods: Technical consultation hotline: Call Guoli Chemical's official customer service, provide the product name (L-62 Poloxamer), batch number, and a detailed description of the issue, and technical staff will provide a targeted solution. Sample testing service: If product quality is suspected, return a retained sample to the company for physicochemical index retesting, including analysis of key parameters such as hydroxyl value, cloud point, and emulsifying power. Formulation optimization support: If you encounter formulation matching difficulties in specific applications (such as dishwasher rinse aids, pesticide emulsification, metalworking fluids, etc.), the Guoli Chemical application technology team can provide formulation optimization suggestions and compatible solutions. Technical document acquisition: Obtain complete technical documents such as Safety Data Sheets (SDS), Technical Data Sheets (TDS), and application guides from the company. On-site service: For major usage issues, technical personnel can be arranged for on-site investigation and guidance. Note: For specific contact information (phone, email, etc.), please visit the official website of Haian County Guoli Chemical Co., Ltd. or refer to the accompanying ctory documents for the latest information. No direct contact information data is available in this product database.

Question 3

How to purchase L-62 Poloxamer? What is the minimum order quantity?

Accepted Answer

Purchasing L-62 Poloxamer (Poloxamer 182) is very convenient. You can place a direct order by contacting the sales team of Haian Guoli Chemical Co., Ltd. The minimum order quantity needs to be confirmed with sales based on the current packaging policy, and it is usually subject to the minimum packaging specification. Detailed Description L-62 Poloxamer (CAS No.: 9003-11-6, also known as Polyether L62, Poloxamer 182) is a high-performance nonionic surctant from Guoli Chemical. Currently, this product does not have an online ordering system. It is recommended to contact the sales team of Guoli Chemical via the official website, phone, or email to obtain the most accurate product pricing, inventory status, and technical consultation. The sales team can also recommend more precise product solutions and technical support based on your specific application needs (such as industrial defoaming, automatic dishwasher rinsing, agrochemical emulsification, or emulsion polymerization). According to the Guoli Chemical database, conventional packaging specifications for this product include 50kg plastic drums, 200kg plastic drums, and IBC totes (1000kg). The diverse packaging options can meet different needs from laboratory R&D, small-scale trials, to large-scale industrial production. The actual purchase price is subject to adjustment due to order volume, packaging form, and fluctuations in raw material markets. Therefore, the price information in the database is for reference only, and the final quotation provided by the sales team shall prevail. If this is your first trial of the product, it is recommended to request a free sample for performance verification to ensure it fully meets the requirements of your formulation system. Quick Overview of Core Product Parameters Parameter Item Value/Description Product State Colorless to slightly yellow transparent oily liquid Ion Type Nonionic block copolymer HLB Value 7 Cloud Point (1% Aqueous Solution) Approximately 32°C Hydroxyl Value 40-55 mg KOH/g pH Value (1% Aqueous Solution) 5.0-7.5 Density (25°C) Approximately 1.03 g/cm³ Free Alcohol Content ≤1.0% Standard Packaging 50kg plastic drum / 200kg plastic drum / IBC tote Procurement and Ordering Suggestions Obtain Quote and Sample: Contact the sales department of Guoli Chemical directly, inform them of your interested product name (L-62 Poloxamer) and estimated annual usage to obtain the latest quotation and apply for a free sample for small-scale verification. Determine Packaging Specification: For initial trials, it is recommended to start with a 50kg standard drum for easy material handling and formulation testing; if the process is confirmed mature and the usage is stable, selecting 200kg drums or IBC totes can effectively reduce the unit purchase price and packaging waste disposal costs. Sign Purchase and Sales Contract: After confirming the price, delivery time, and transportation method, both parties sign a formal supply agreement. Guoli Chemical usually supports ex-works delivery or designated logistics. Please ensure that your operators have thoroughly read the Safety Data Sheet (SDS) and possess the appropriate storage and handling conditions before purchase. Precautions Storage Environment: The product is slightly hygroscopic. It must be stored in a cool (recommended 5~30°C), dry, and well-ventilated warehouse. The container should be kept sealed and away from strong oxidizing agents. Safe Operation: This product is classified as GHS Skin Irritation Category 2 and Serious Eye Irritation Category 2. Wear chemical safety goggles and protective gloves during operation. Avoid contact with eyes and skin. In case of accidental eye contact, immediately flush with plenty of water for at least 15 minutes and seek medical attention promptly.

Question 4

Does L-62 Poloxamer meet environmental requirements? Can a test report be provided?

Accepted Answer

L-62 Poloxamer meets mainstream environmental requirements, with good biodegradability and low ecotoxicity. However, no ready-made test report is currently available in the database. Detailed Explanation L-62 Poloxamer (Poloxamer 182) performs well in terms of environmental performance. According to the ecological information in the product database, this product is readily biodegradable and will not persist in the environment; it exhibits low toxicity to aquatic organisms and is not expected to cause short-term or long-term adverse ecological effects; meanwhile, it does not have significant bioaccumulation potential and will not accumulate in organisms through the food chain. In the assessment of the Globally Harmonized System of Classification and Labelling of Chemicals (GHS), L-62 Poloxamer is not classified into any environmental hazard category (i.e., it is not classified as acute aquatic toxicity, chronic aquatic toxicity, or hazardous to the ozone layer). This indicates that under the current scientific evaluation framework, the environmental risk of this product is at a low level. In addition, waste disposal should comply with local environmental regulations. It is prohibited to discharge directly into waterways, sewers, or soil. Residuals should be handed over to qualified waste disposal agencies for incineration or sanitary landfill. Overview of Environmental Indicators Assessment ItemResult BiodegradabilityReadily biodegradable, not likely to persist in environment Aquatic ToxicityLow toxicity, no expected short-term or long-term adverse ecological effects BioaccumulationNo significant bioaccumulation potential GHS Environmental Hazard ClassificationNot classified as an environmental hazard substance Regarding Test Reports Currently, the database of Guoli Chemical does not include third-party environmental test reports for L-62 Poloxamer (such as biodegradability test reports, aquatic toxicity test reports, RoHS/REACH compliance statements, etc.). If formal written test reports or certification documents are required, it is recommended to obtain them through the following channels: Directly contact Guoli Chemical's sales or technical department to request the product's Safety Data Sheet (SDS/MSDS) and Certificate of Analysis (COA), which usually include data source descriptions for environmental parameters. Based on specific application scenarios (e.g., export to EU requires REACH compliance statement, food processing equipment cleaning requires NSF certification, etc.), submit targeted testing requests to the manucturer. If an independent third-party test report is needed, negotiate with the manucturer to commission a laboratory with CMA/CNAS qualifications for customized testing. Notes Although L-62 Poloxamer is readily biodegradable and has low toxicity, it should not be directly discharged into natural water bodies or soil after use. Wastewater treatment or commissioned disposal must be carried out in accordance with local regulations. Environmental compliance varies by regional regulations (e.g., EU Ecolabel, US EPA Safer Choice, and other certification standards). Please verify the specific certification status with the manucturer.

Question 5

What advantages does L-62 Poloxamer have compared to other similar products?

Accepted Answer

According to the technical data from Guoli Chemical, compared to similar nonionic surctants, the core advantages of L-62 Poloxamer lie in its **unique low-foaming and foam-control properties**, combined with **excellent chemical stability**, **efficient wetting and dispersing capabilities**, and **versatile application suitability**. This product, through its precisely designed block copolymer structure of ethylene oxide (EO) and propylene oxide (PO), effectively controls foam while providing outstanding surce activity. This significantly improves efficiency and reduces defoamer usage in industrial cleaning and processing. Below is a detailed explanation of its advantages based on actual product data: ### 1. Exceptional Low-Foaming and Foam-Control Performance This is the most distinctive feature of L-62 compared to many traditional nonionic surctants (e.g., tty alcohol polyoxyethylene ethers). - **Automatic Dishwasher Rinse Aid**: As a core component, its low-foaming property prevents overflow, ensuring st, spot-free, and streak-free drying of rinse water under high-pressure spraying. - **Hard Surce Cleaning**: Does not generate excessive foam during high-mechanical-force cleaning, eliminating the need for additional defoamers, simplifying formulations, and reducing costs. - **Industrial Defoamers**: It can directly serve as a **base component for low-foaming defoamers**, effectively inhibiting foam in scenarios where other surctants produce excessive foam. ### 2. Strong Chemical Stability L-62 maintains high stability in complex and harsh chemical environments, outperforming many ester-based surctants that are sensitive to acids and bases. - **Resistance to Strong Acids and Bases**: Performs stably in acidic or alkaline cleaners and metalworking fluids without hydrolysis. - **Hard Water Resistance**: Unaffected by calcium and magnesium ions in water, maintaining efficient wetting and dispersing capabilities even in hard water conditions, without forming calcium soap precipitates. ### 3. Efficient and Multifunctional Surce Activity - **Powerful Wetting**: Rapidly and significantly reduces the surce tension of aqueous solutions, helping the formulation spread quickly on various hard-to-wet surces such as metal, glass, plastic, and plant leaves. - **Excellent Dispersion**: Provides outstanding dispersion and anti-redeposition abilities for solid particles like pigments, fillers, and dirt, ensuring a uniform and stable system. This makes it perform well in coatings, textiles, and cleaning formulations. - **Emulsification Ability**: As an O/W (oil-in-water) emulsifier, it can create fine and stable emulsion systems for pesticide emulsifiable concentrates, emulsion polymerization, etc. ### 4. Wide Range of Applications and High Safety - **Multi-Purpose Use**: As shown in the "Main Application Areas" table, L-62 covers household cleaning, industrial processing, agricultural preparations, and polymer industries simultaneously. This cross-field multifunctionality is a key advantage. - **Process and Safety Advantages**: It is a liquid at room temperature, easy to handle, pump, and add automatically. Additionally, its toxicological data is superior, being practically non-toxic, readily biodegradable, and friendly to both the environment and operators. ### Technical Parameters and Application Recommendation Comparison Table | Advantage Characteristic | L-62 Poloxamer Performance | Similar Common Products (e.g., tty Alcohol Polyoxyethylene Ethers) | Application Recommendation | | :--- | :--- | :--- | :--- | | **Foam Behavior** | **Low-foaming/foam-control type**. The molecular structure determines its unique foam-suppressing effect. | Usually high-foaming type, requiring defoamer addition in spray cleaning. | **Recommended for automatic dishwasher rinse aids, spray hard surce cleaning, and low-foaming metalworking fluids.** Suggested dosage: 0.5-2% in rinse aids. | | **Chemical Stability** | **Resistant to acids, bases, and hard water**. Very stable in nature. | Ester products are prone to hydrolysis in strong acids/bases; some products are sensitive to hard water. | **Recommended for strong alkaline kitchen cleaners, acidic toilet cleaners, and metal cutting fluids.** Can be used across a wide pH range. | | **Functional Versatility** | Integrates **emulsification, wetting, dispersion, and defoaming** in one product. | Relatively single-function; often requires blending multiple products for specific functions. | **Recommended as a formulation simplification tool.** In pesticide formulations, it can simultaneously emulsify the active ingredient and wet leaves, reducing cost and complexity. | | **Physical Form and Safety** | **Liquid at room temperature**, easy to handle; **toxicologically safe**, readily biodegradable. | Some products are pastes or solids, requiring heating for melting; irritation varies. | **Recommended for automated production lines with high safety and convenience requirements.** | **Precautions** - Although L-62 is safe and environmentally friendly, always follow safety instructions during operation, avoiding direct and prolonged contact with eyes and skin. It is recommended to wear protective goggles and gloves. - Store in a cool, dry place. Ensure the container is tightly sealed after use to maintain product performance stability. If you need more detailed formulation recommendations for a specific application (e.g., making a low-foaming cleaner), I can provide further analysis based on available data.

Question 6

How to store L-62 Poloxamer? What is the shelf life?

Accepted Answer

L-62 Poloxamer should be stored in a cool (5~30°C), dry, and well-ventilated environment with the container sealed; regarding the specific shelf life, the product database currently does not provide definite data, but under original sealed packaging conditions, performance stability can be maintained for a long time. Detailed Explanation L-62 Poloxamer (Poloxamer 182) is a chemically stable nonionic block copolymer surctant with excellent chemical resistance. Proper storage is key to ensuring long-term performance of the product. Under original sealed packaging conditions, the product can maintain performance stability within its shelf life and is not prone to deterioration or stratification. The core principles of storage are moisture-proof, sealed, and away from incompatible substances. Since the product is slightly hygroscopic, exposure to moisture and humid air may cause changes in performance, making sealed storage particularly important. Meanwhile, at room temperature, the product is a colorless to slightly yellow transparent oily liquid with a flash point above 200°C. It is not classified as a flammable dangerous good, but it should still be kept away from heat sources and open flames to ensure safety. Storage Conditions Storage ElementSpecific Requirement TemperatureCool environment, recommended temperature range 5~30°C EnvironmentDry, well-ventilated warehouse area Container StatusKeep sealed to prevent moisture and water vapor ingress Container MaterialStainless steel, glass, polyethylene (PE) and other compatible material sealed containers are recommended; original containers should be used preferentially Substances to AvoidStrong oxidizing agents, strong acids, strong bases, and other incompatible substances Conditions to AvoidHeat sources, sparks, open flames Supporting cilitiesStorage area should be equipped with appropriate spill containment cilities Shelf Life Explanation The product database currently does not provide a specific shelf life value. Generally, similar polyether-type nonionic surctants, when strictly following the above storage conditions (original sealed, cool and dry, 5~30°C), typically have a shelf life of 12 to 24 months. For specific batch products, please refer to the date indicated on the product packaging label or Certificate of Analysis (COA). Precautions Immediately seal the container after each use to avoid prolonged exposure to air and moisture absorption. Use clean and dry tools when taking product to prevent cross-contamination. Avoid storing the product near drains or sewers to prevent accidental leakage into water bodies. For products beyond shelf life or stored under abnormal conditions, it is recommended to perform performance re-inspection before deciding whether to continue use. Disposal should be carried out by qualified waste treatment service organizations in accordance with local environmental regulations; discharge into waterways or soil is prohibited.

Question 7

What safety precautions should be taken when using L-62 Poloxamer?

Accepted Answer

L-62 Poloxamer is a low-toxicity, low-hazard non-dangerous substance, but during operation, special attention should be paid to protecting the eyes and skin. Avoid direct contact to ensure safe use. Detailed Description According to the Globally Harmonized System of Classification and Labelling of Chemicals (GHS) assessment, L-62 Poloxamer (CAS No.: 9003-11-6) is classified as Skin irritation category 2 (H315) and Serious eye damage/eye irritation category 2 (H319). This means that the product does not have serious hazards such as acute toxicity, carcinogenicity, or reproductive toxicity, but it may still cause local skin discomfort and significant eye irritation during use, requiring protection. From toxicological data, the acute oral toxicity LD₅₀ (rat) of this product is greater than 5,000 mg/kg, which is actually non-toxic. Available data also indicate no skin sensitization, no germ cell mutagenicity, and no evidence of carcinogenicity in long-term studies. Therefore, the overall safety of L-62 Poloxamer is relatively high, but good operating practices remain key to ensuring personnel safety. In terms of environmental safety, L-62 Poloxamer is readily biodegradable, has low toxicity to aquatic organisms, is not persistent in the environment, and does not exhibit significant bioaccumulation potential. Under normal use and proper disposal conditions, the risk of environmental impact is low. Core Safety Operation Requirements Personal Protective Equipment (PPE) Eye Protection: Wear safety goggles compliant with EN 166 standards to prevent splashes from entering the eyes. Hand Protection: Wear appropriate protective gloves to avoid direct skin contact. Respiratory Protection: Ensure good ventilation in the workplace; if dust or aerosols are generated, wear a particulate respirator meeting NIOSH N95/EN 149 FFP2 standards. Hygiene Practices: After operation, thoroughly wash hands and exposed skin with mild soap and clean water. Do not use solvents. Eating, smoking, and drinking are prohibited in the workplace. Storage Requirements Store in a cool (recommended temperature 5~30°C), dry, and well-ventilated warehouse. Keep containers tightly sealed, away from heat sources, sparks, and open flames (flash point above 200°C, not flammable). Keep away from incompatible substances such as strong oxidizers, strong acids, and strong bases. Use original containers or sealed containers made of compatible materials (stainless steel, glass, polyethylene) to avoid moisture and water vapor. Emergency Procedures Skin Contact: Immediately remove contaminated clothing and rinse skin with plenty of water and mild soap for at least 15 minutes. If irritation persists, seek medical attention. Eye Contact: Immediately hold eyelids open and rinse slowly and thoroughly with room-temperature water for at least 15 minutes, periodically turning the eyeball. Remove contact lenses if worn and easy to do so. Seek immediate medical attention. Inhalation: Move the affected person to fresh air quickly and keep breathing unobstructed. If symptoms such as coughing or discomfort occur, seek medical advice. Ingestion: Rinse the mouth with water, do not induce vomiting. Seek medical attention immediately and present this product description or container label. Spill Cleanup: Sweep or shovel up the spilled material and collect it in a dry, covered, and clearly labeled container. Use inert absorbent materials to treat residues and dispose of in accordance with local regulations. Prevent entry into drainage systems or waterways. Technical Parameters The following are key safety-related technical parameters for L-62 Poloxamer (Data source: Guoli Chemical Product Database): Parameter ItemValue/Description GHS Skin irritation classificationCategory 2 (H315: Causes skin irritation) GHS Eye damage/Eye irritation classificationCategory 2 (H319: Causes serious eye irritation) Acute oral toxicity LD₅₀ (rat)> 5,000 mg/kg (Actually non-toxic) Skin sensitizationNon-sensitizing Carcinogenicity/MutagenicityNo relevant hazard classification Flash pointAbove 200°C (Not flammable) BiodegradabilityReadily biodegradable Aquatic toxicityLow toxicity BioaccumulationNot significantly bioaccumulative Application Recommendations L-62 Poloxamer performs excellently in applications such as industrial and institutional cleaning, metalworking fluids, agrochemicals, and emulsion polymerization. However, safety management focuses vary slightly in different scenarios: Industrial batching operations: Splashes are prone to occur during feeding and transfer processes, making eye and hand protection the top priority. It is recommended to operate in well-ventilated batching areas. Automatic dishwasher rinse aid formulations: The dosage of L-62 in the finished product is usually low (0.5%~5%), posing very low risk for end consumers during normal use. However, the above protection requirements must still be followed during formulation production. Metalworking fluids: The working fluid concentration generally does not exceed 5%. When used in open systems, attention should be paid to ventilation in the work area to avoid prolonged skin contact with the diluted working fluid. Pesticide formulation processing: Processing may involve other highly toxic active ingredients, and the overall safety risk of the entire formulation should be comprehensively assessed. The low toxicity of L-62 alone should not be used to reduce the overall protection level. Precautions Users are responsible for conducting a risk assessment for the application of this product in their specific workplace and establishing corresponding safe operating procedures. The above safety instructions do not constitute a product performance guarantee. For detailed disposal measures, please refer to the complete Safety Data Sheet (SDS/MSDS) of the product separately. Waste disposal must be carried out in accordance with local, regional, and national environmental regulations. Do not discharge into waterways, sewers, or soil. Residual materials should be sent to qualified waste treatment service providers for incineration or sanitary landfill.

Question 8

How to use L-62 poloxamer? What is the recommended addition amount?

Accepted Answer

The addition amount of L-62 poloxamer varies by application area, generally ranging from 0.05% to 10% of the total formulation weight; as a liquid nonionic surctant, it can be directly added to the aqueous or oil phase for use. Detailed Description L-62 poloxamer (Poloxamer 182) appears as a colorless to slightly yellow transparent oily liquid at room temperature, with a viscosity of approximately 400 mPa·s (25°C), offering good fluidity and pumpability, cilitating continuous metered addition in industrial processes. Due to its HLB value of about 7, the product disperses in water rather than being completely dissolved, and is readily soluble in organic solvents such as ethanol and ether. Its cloud point is approximately 32°C (1% aqueous solution); near or above this temperature, it may precipitate from aqueous solutions, so special attention is needed in high-temperature formulation design. Based on the application fields in the product database, recommended addition amounts (by total formulation weight) for different uses are as follows: Automatic dishwasher rinse aids typically add 0.5%~5%, utilizing its low-foaming properties and ability to reduce surce tension to achieve spot-free and streak-free rapid drying; Metalworking fluids use it as a low-foaming wetting agent, recommended at 1%~5%, providing excellent wetting and spreading performance while maintaining low foam levels; Hard surce cleaners add 0.5%~3% to enhance penetration and detergency on surces such as glass and ceramics; Industrial defoamers incorporate it as a base component or foam suppressant at approximately 0.05%~1%, rapidly eliminating foam and providing sustained foam suppression. Agrochemicals use it as an emulsifier or wetting agent, typically at 2%~10% (based on pesticide active ingredients), helping to form stable oil-in-water emulsions and improve the spreadability of the spray solution on plant leaves; Coatings and pigment systems use it as a pigment/filler dispersant, recommended at 0.5%~3% (based on pigment or filler weight), effectively deflocculating pigment agglomerates, improving color development and storage stability; Emulsion polymerization uses it as a primary or co-emulsifier at 1%~4% (based on monomer weight), helping to control latex particle size and stabilize the reaction system. These addition amounts are industry general reference ranges; actual optimal dosages should be determined through formulation trials. Technical Parameters ParameterValueTest Condition HLB ValueApprox. 7— Cloud PointApprox. 32°C1% Aqueous Solution Surce TensionApprox. 40 mN/m0.1% Aqueous Solution, 25°C Critical Micelle Concentration (CMC)Approx. 0.1%25°C DensityApprox. 1.03 g/cm³25°C Kinematic ViscosityApprox. 400 mm²/s25°C Active Content≥99%— pH Value5.0~7.51% and 5% Aqueous Solution Pour PointApprox. -20°C— Flash PointApprox. 240°C (COC)— Ionic TypeNonionic— Application Recommendations Addition Method: L-62 poloxamer is a liquid product that can be directly pumped or poured into the formulation system. It is recommended to add it slowly under stirring into either the aqueous or oil phase to ensure uniform dispersion. If the formulation system is at a high temperature, pay attention to the product's cloud point of approximately 32°C; exceeding this temperature may cause phase separation. It is advisable to add it at room temperature or during the low-temperature stage. Emulsification Applications: When used as an emulsifier in agrochemicals or in emulsion polymerization, L-62 can be pre-mixed uniformly with the oil-phase components, and then the oil phase is slowly added to the water phase under stirring, which helps form a stable oil-in-water emulsion. Since the HLB value is about 7, if higher emulsification efficiency is required, it can be compounded with other high-HLB surctants. Foam Control: This product exhibits excellent low-foaming and foam-control characteristics, making it particularly suitable for foam-sensitive formulation systems. In applications such as automatic dishwashers and high-pressure spray cleaning, it effectively prevents foam overflow and improves rinsing efficiency. Precautions Protective Measures: GHS classification: Skin irritation Category 2 and Serious eye irritation Category 2. Safety goggles and protective gloves should be worn during operation. Avoid contact with eyes and skin. If eye contact occurs, rinse immediately with plenty of water for at least 15 minutes and seek medical attention. Storage Conditions: Store in a cool, dry place at 5~30°C, keeping the container sealed. It may solidify below -20°C; prior to use, warm up to restore fluidity without affecting product performance. Compatibility: Highly stable under acidic, alkaline, and hard water conditions, but avoid contact with strong oxidizers. It can be compounded with anionic, cationic, and other nonionic surctants. Addition Optimization: The database does not provide exact addition amounts for each application field; the recommended ranges above are industry general references. Actual addition amounts should be determined through laboratory trials based on the specific formulation system to find the optimal economic dosage. The technical team of Guoli Chemical can provide further formulation optimization support.

Question 9

What are the main industries and processes where L-62 Poloxamer is used?

Accepted Answer

L-62 Poloxamer is widely used in various industries including industrial cleaning, metalworking, agricultural chemicals, polymer industry, coatings and pigments, and textiles. It is a multifunctional low-foaming nonionic surctant. Detailed Description L-62 Poloxamer (Poloxamer 182) is a high-performance nonionic surctant formed by block copolymerization of ethylene oxide and propylene oxide, with an average molecular weight of about 2500. Its unique molecular structure endows the product with three core advantages: excellent low-foaming/foam control properties, strong wetting and penetrating power, and outstanding dispersion and emulsification effects, making it an irreplaceable key component in many foam-sensitive industrial and household formulations. In the field of Industrial & Institutional Cleaning, L-62 is a core component of rinse aids for automatic dishwashers, effectively reducing the surce tension of rinse water, minimizing water spots and streaks on dishes, and promoting st, streak-free drying. It also serves as a low-foaming wetting and penetrating agent in hard surce cleaners, aiding in the removal of grease and oil from glass, ceramics, and other surces. In Metalworking, it acts as a low-foaming wetting agent and cooling component in cutting and grinding fluids, ensuring machining precision and surce finish. In Agricultural Chemicals, L-62 functions both as an emulsifier and as a wetting and spreading agent. It stabilizes oily pesticides into oil-in-water emulsions and enhances the spreading ability of the spray liquid on leaf surces, significantly improving the utilization efficiency of the active ingredients. Additionally, it is widely used in processes such as polymer emulsion polymerization, coating and pigment dispersion, textile processing, and industrial defoaming/antifoaming. Overview of Main Application Fields Industry Specific Process/Application Functional Role Industrial Cleaning Rinse aid for automatic dishwashers Reduces surce tension, minimizes water spots, promotes rapid drying Hard surce cleaners Low-foaming wetting and penetration to enhance dirt removal Industrial defoamers/antifoams Rapid defoaming, persistent foam suppression (paper, water treatment, cleaning, etc.) Metalworking Cutting fluids, grinding fluids Low-foaming wetting agent, cooling component Agricultural Chemicals Pesticide emulsification Stabilizer for oil-in-water emulsions Pesticide wetting and spreading Enhances leaf surce spreading, improves absorption and utilization Polymer Industry Emulsion polymerization Emulsifier, controls latex particle size Coatings & Pigments Water-based pigment dispersion Deagglomerates pigment aggregates, improves color development and storage stability Filler dispersion Improves dispersion uniformity of fillers in coatings and adhesives Fermentation Industry Microbial fermentation defoaming Controls foam, enhances aeration efficiency and product yield Textile Industry Leveling, antistatic, softening treatment Textile processing auxiliaries Application Recommendations In formulation design, the recommended use concentration of L-62 Poloxamer depends on the specific process: as a rinse aid, typically added at 5% to 30%; as an emulsifier, generally 2% to 10% of the active content; as a defoaming/antifoaming component, it can be added directly or used after pre-dilution. Since the polyoxypropylene segment in its molecule provides hydrophobicity and the polyoxyethylene segment provides hydrophilicity, it exhibits adjustable surce activity at different temperatures. It is recommended to determine the optimal dosage through trials to achieve the desired balance of wetting and foam control. Precautions The product is a colorless to slightly yellow transparent oily liquid at room temperature, easy to pour and pump, suitable for continuous industrial production. It has excellent chemical stability and maintains performance under acidic, alkaline, and hard water conditions. GHS classification: Skin irritation Category 2 and Serious eye damage/eye irritation Category 2. Protective gloves and safety goggles should be worn during handling to avoid contact with eyes and skin. Store in a cool (5~30°C), dry, and well-ventilated place, away from strong oxidizing agents and strong acids/bases. Acute oral toxicity LD₅₀ (rat) > 5,000 mg/kg, practically non-toxic; readily biodegradable, low toxicity to aquatic organisms.

Question 10

What are the physicochemical technical parameters of L-62 Poloxamer?

Accepted Answer

L-62 Poloxamer is a nonionic block copolymer surctant, appearing as a colorless to light yellow transparent liquid at room temperature, with an HLB value of approximately 7. It is a low-foaming product with balanced comprehensive physicochemical properties. Detailed Description L-62 Poloxamer (Poloxamer 182, CAS No.: 9003-11-6) is synthesized by block copolymerization of ethylene oxide (EO) and propylene oxide (PO) in a precise ratio, with an average molecular weight of approximately 2500 and a general molecular formula of HO(C₂H₄O)a(C₃H₆O)b(C₂H₄O)aH. Its unique EO-PO-EO three-block structure endows the product with excellent low-foaming wetting and dispersing properties. With an HLB value of about 7, it is amphiphilic, dispersible in water, and readily soluble in organic solvents. This product exhibits excellent chemical stability, maintaining stable performance under acidic, alkaline, and hard water conditions. Its cloud point is approximately 32°C (1% aqueous solution), making it outstanding in cleaning applications requiring temperature control, such as rinse aids for automatic dishwashers. Toxicological data show that its acute oral toxicity LD₅₀ (rat) is greater than 5000 mg/kg, indicating it is practically non-toxic, environmentally friendly, and readily biodegradable. Technical Parameters ParameterSpecificationParameterSpecification Product NameL-62 Poloxamer (Poloxamer 182)AppearanceColorless to light yellow transparent liquid CAS No.9003-11-6Ionic TypeNonionic Average Molecular WeightApproximately 2500Active Content≥99% HLB Value7Density (25°C)Approximately 1.03 g/cm³ Cloud Point (1% Aqueous Solution)Approximately 32°CKinematic Viscosity (25°C)Approximately 400 mm²/s pH Value (1% Aqueous Solution)5.0-7.5Dynamic Viscosity (25°C)Approximately 400 mPa·s pH Value (5% Aqueous Solution)5.0-7.5Refractive Index (20°C)1.452-1.456 Acid Value≤0.5 mg KOH/gFlash Point (COC)Approximately 240°C Saponification Value≤1 mg KOH/gPour PointApproximately -20°C Hydroxyl Value40-55 mg KOH/gSurce Tension (0.1%, 25°C)Approximately 40 mN/m Iodine Value≤1Critical Micelle Concentration (25°C)Approximately 0.1% Moisture Content≤0.5%Unsaturation≤0.02 mol/kg Free Alcohol≤1.0%Foam CharacteristicsLow foaming Heavy Metals≤20 mg/kgArsenic≤2 mg/kg SolubilityReadily soluble in organic solvents such as ethanol and ether, dispersible in waterPenetration PowerGood HygroscopicityHygroscopicChemical StabilityStable under normal conditions, resistant to acids and alkalis, avoid strong oxidizers (Data source: Guoli Chemical Product Database) Application Recommendations Based on the above physicochemical parameters, L-62 Poloxamer is highly suitable for the following applications: With an HLB value of 7, it is ideal for preparing water-in-oil (W/O) emulsions and can also serve as an auxiliary emulsifier in oil-in-water (O/W) systems; its low-foaming characteristic (surce tension approximately 40 mN/m) makes it excellent in rinse aids for automatic dishwashers, industrial cleaners, and metalworking fluids, quickly wetting surces without excessive foam; the cloud point of approximately 32°C results in reduced surce activity when water temperature slightly exceeds this point, allowing controlled foaming and rapid rinsing; good dispersibility and penetration power are suitable for pigment and filler dispersion, as well as agricultural chemical spreader formulations. Precautions GHS Classification: Skin irritation Category 2 (H315), Serious eye damage/eye irritation Category 2 (H319). Wear safety goggles and protective gloves during handling. Storage Conditions: Recommended storage temperature 5~30°C, keep sealed in a cool, dry place away from strong oxidizers and avoid moisture absorption. Cloud Point Application Note: Cloud point is approximately 32°C. Turbidity and phase separation may occur in aqueous solutions near or above this temperature. Consider operating temperature during formulation design. Dissolution Operation: This product is dispersible rather than fully soluble in water. When preparing aqueous solutions, it is recommended to add slowly under stirring to achieve a uniform dispersion. Packaging: Available in 50 kg plastic drums, 200 kg plastic drums, and IBC totes. Custom packaging is available upon request.

L-62 Poloxamer

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Property	Value
CAS No.	9003-11-6
Molecular Formula	HO(C2H4O)a(C3H6O)b(C2H4O)aH
Appearance	Colorless to pale yellow liquid
Ionic Type	Nonionic
Avg. Molecular Weight	~2500
Cloud Point	~32°C (1%aq. soln.)
Active Content	≥99%
pH Value(1%)	5.0-7.5 (1%aq. soln.)
pH Value(5%)	5.0-7.5 (5%aq. soln.)
Iodine Value	≤1
Solubility	Readily soluble in ethanol, ethyl ether and other organic solvents; dispersible in water
Surface Tension	~40 mN/m (0.1%, 25°C)
CMC	~0.1% (25°C)
Acid Value	≤0.5
Saponification Value	≤1
Hydroxyl Value	40-55 mg KOH/g
Moisture	≤0.5
Density	~1.03 g/cm³ (25°C)
Kinematic Viscosity	~400 mm²/s (25°C)
Refractive Index	1.452-1.456 (20°C)
Flash Point	~240°C (COC)
Hygroscopicity	Hygroscopic
Chemical Stability	Stable under normal conditions; avoid strong oxidizers
Penetration	Good
Foam Property	Low foam
Alkali Resistance	Stable under alkaline conditions
Unsaturation	≤0.02 mol/kg
Viscosity	~400 mPa·s (25°C)
Melting Point	Liquid; pour point ~ -20°C
Low Shear Viscosity	~400 mPa·s
Solid Content	≥99%
Free Alcohol	≤1.0%
Heavy Metal	≤20 mg/kg
Arsenic	≤2 mg/kg

L-62 Poloxamer

Product Details

Applications

Properties

Safety

Product Overview

Performance Features

Application Guidelines

Packaging and Storage

Polyether/Poloxamer Applications

Product Properties

Safety

GHS

Handling

Storage

First Aid

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