Question 1

Is the emulsifier SG-100 harmful to the human body? Does it have an impact on the environment?

Accepted Answer

Emulsifier SG-100 is actually non-toxic to the human body, with no significant irritation, sensitization, or genotoxicity; it has low ecotoxicity to the environment and is easily biodegradable, making it a non-ionic surctant with excellent safety. Detailed Description Emulsifier SG-100 (PEG-100 Stearate) is a non-ionic surctant produced by Haian Guoli Chemical Co., Ltd. It is not classified as a dangerous chemical and is not listed in the 'Catalogue of Hazardous Chemicals.' Based on existing toxicological and ecotoxicological data, this product has no GHS hazard classification and poses no significant harm to the human body or the environment under normal industrial use conditions. From a human health perspective, the acute oral LD₅₀ in rats is greater than 5000 mg/kg, indicating a practically non-toxic level; the primary skin irritation index is less than 0.5, with no significant irritation; eye irritation is mild and reversible, not meeting the criteria for serious eye damage classification; skin sensitization tests show no sensitization; Ames test is negative, indicating no genotoxicity; and there is no evidence of reproductive toxicity. Overall, this product exhibits prominent safety characteristics of low toxicity and low irritation. From an environmental impact perspective, the 96-hour LC₅₀ for fish is greater than 100 mg/L, indicating low ecotoxicity; according to OECD 301 test, the degradation rate over 28 days is greater than 60%, classifying it as readily biodegradable, meaning it will not accumulate in the environment for a long time and has a minor impact on aquatic ecosystems. Technical Parameters Safety IndicatorTest DataConclusion Acute toxicity (rat oral LD₅₀)> 5000 mg/kgPractically non-toxic level Skin irritationPrimary skin irritation index < 0.5No significant irritation Eye irritationMild reversible irritationNot meeting serious eye damage classification Skin sensitization—No sensitization Genotoxicity (Ames test)NegativeNo genotoxicity Reproductive toxicity—No evidence of reproductive toxicity Fish acute toxicity (96h LC₅₀)> 100 mg/LLow ecotoxicity Biodegradability (OECD 301, 28 days)Degradation rate > 60%Readily biodegradable Application Recommendations Given its excellent safety, SG-100 is widely used in cosmetics and personal care products (creams, lotions, sunscreens, etc.) as an O/W emulsifier and solubilizer, maintaining good safety performance even in direct skin contact applications. In the textile industry, it is used as a softener and antistatic agent; in the plastics industry, as an internal lubricant; and in pesticide formulations, as an emulsifier. It can be confidently used under conventional processing conditions. It is recommended to optimize the dosage in the formulation based on specific application scenarios and emulsification requirements. Typically, the dosage as an emulsifier in cosmetics is 1%-5%, and the specific amount should be determined through experiments to achieve the optimal ratio. Precautions Operational Protection: Although the product has high safety, it is still recommended to wear nitrile or neoprene gloves during prolonged or repeated contact, and safety goggles or ce shields should be worn if there is a risk of splashing. First Aid: In case of eye contact, immediately flush with plenty of water for at least 15 minutes while holding eyelids open; for skin contact, wash thoroughly with soap and water; if ingested, do not induce vomiting, drink a small amount of water to dilute and seek medical attention immediately. Environmental Management: Although the product is readily biodegradable, it is strictly prohibited to discharge untreated waste liquid directly into sewers or natural water bodies. Waste should be disposed of by high-temperature incineration in accordance with local regulations. Storage Conditions: Recommended storage temperature is 5°C to 40°C, stored in a cool, dry, and well-ventilated area, away from incompatible materials such as strong oxidizers, strong acids, and strong bases.

Question 2

What should I do if problems occur during the use of emulsifier SG-100? How can I obtain technical support?

Accepted Answer

If you encounter problems during the use of emulsifier SG-100, it is recommended to follow the approach of "inspect first, analyze next, and seek help last". Guo Li Chemical provides a professional technical support team to serve you. Detailed Explanation Emulsifier SG-100 (PEG-100 Stearate) is a non-ionic surctant with stable chemical properties, generally reliable in practical applications. However, during use, a series of technical issues related to process or formulation may still arise, such as: unsatisctory emulsification effect, emulsion layering or demulsification, incomplete dissolution, poor compatibility, abnormal foaming, etc. These problems are usually related to the formulation system, process conditions, or storage method, rather than a defect in the product itself. When problems occur, it is recommended to first conduct the following self-checks: ① Check the product appearance — Normally it should be a white to slightly yellow waxy solid. If significant discoloration, odor, or severe caking is observed, it may indicate improper storage (recommended storage temperature: 5°C to 40°C, avoid direct sunlight and moisture); ② Confirm dosage and HLB value compatibility — SG-100 has a high HLB value suitable for O\/W emulsification systems. If it does not match the HLB value of the oil phase, emulsification instability may occur; ③ Check process conditions — Whether it is fully dissolved and dispersed at the appropriate temperature, whether the feeding sequence is correct, whether mixing is uniform, etc. If the problem persists after self-checks, Guo Li Chemical provides comprehensive technical support channels. You can contact our technical team via official website, customer service hotline, email, or directly contact your dedicated sales manager. We recommend that you prepare the following information when contacting us to quickly identify the issue: product batch number, formulation system used, process parameters, description of the problem phenomenon (photos or samples are preferred). Technical Parameters Parameter ItemDescription Chemical NameStearic acid polyethylene glycol (100) ether CAS Number9004-99-3 Ionic TypeNon-ionic AppearanceWhite to slightly yellow waxy solid SolubilitySoluble in hot water and various organic solvents HLB ValueApproximately 18-19 (suitable for O\/W emulsifiers) Performance CharacteristicsExcellent emulsification and wetting ability; resistant to acid, alkali, and hard water Storage Conditions5°C to 40°C, cool, dry, well-ventilated, sealed Application Recommendations Cosmetics and Personal Care Products: When used as an O\/W emulsifier, it is recommended to mix SG-100 with the oil phase and heat to 70-75°C, while heating the water phase to the same temperature. Then slowly add the oil phase to the water phase under stirring, homogenize thoroughly, and cool. Note that compounding with auxiliary emulsifiers with low HLB values (such as PEG-2 Stearate, etc.) can significantly improve emulsion stability. Textile Industry: When used as a softener, it is recommended to prepare a 5%-15% emulsion before use, applicable for padding or exhaust processes. Its excellent hard water resistance ensures stable softening effects under different water quality conditions. It also has antistatic properties, suitable for finishing synthetic fibers and blended brics. Plastic Industry: As an internal lubricant, the addition amount is usually 0.2%-1.0% of the resin weight and should be uniformly dispersed during the mixing stage. Pesticide Formulations: When used as an emulsifier, it is recommended to account for 2%-8% of the formulation. The specific dosage should be determined through experiments based on the type of active ingredient and formulation requirements. Precautions Safe Handling: This product is not classified as a dangerous chemical and has no GHS hazard classification. However, it is recommended to wear gloves and protective goggles during operation, and avoid prolonged or repeated skin contact. In case of eye contact, rinse thoroughly with plenty of water for at least 15 minutes. Storage Management: Seal the container immediately after use, and keep away from strong oxidizers, strong acids, and strong bases. Empty containers must not be used to hold other materials without cleaning. Biodegradability: This product is readily biodegradable (OECD 301 method, 28-day degradation > 60%). Disposal should follow local regulations, with high-temperature incineration recommended. Technical Support: For further assistance, please contact the Technical Department of Hai'an Guo Li Chemical Co., Ltd. or your dedicated account manager. We will provide formulation optimization suggestions and on-site technical support based on your specific situation.

Question 3

How to purchase emulsifier SG-100? What is the minimum order quantity?

Accepted Answer

To purchase emulsifier SG-100, please contact the Guoli Chemical sales team directly. The specific minimum order quantity is not clearly defined in the system. Detailed Description Emulsifier SG-100 (PEG-100 Stearate, CAS No.: 9004-99-3) is a nonionic surctant product currently produced by Hai'an County Guoli Chemical Co., Ltd. Due to fluctuations in raw material markets, purchase quantities, transportation distances, and other ctors affecting chemical raw material prices, the official online price is not fixed. All quotations must be provided by the sales team based on real-time conditions. Regarding the Minimum Order Quantity (MOQ), the current product database does not contain information on the minimum order quantity for this product. The conventional packaging is 20kg woven bag. Typically, chemical companies set the minimum order quantity based on the entire bag or the smallest packaging unit, and some products also support sample requests. For specific thresholds and sample policies, it is recommended to consult the sales department of Guoli Chemical directly for accurate answers. Before purchasing, it is advisable to prepare the following information to enable the sales staff to serve you quickly: product usage, estimated monthly consumption or initial trial order quantity, delivery address (for freight calculation), and whether sample testing is needed first. Contact and Purchase Methods Manucturer: Hai'an County Guoli Chemical Co., Ltd. Conventional Packaging: 20kg/woven bag Price Description: Please contact the sales team directly for the latest quotation (actual transaction price is subject to the contract). Recommended Approach: Visit the official website of Guoli Chemical or call the sales department, providing the product name "Emulsifier SG-100" and the required quantity. Purchase Tips This product is a non-hazardous chemical. Storage conditions should be in a cool, dry, and well-ventilated environment, with a recommended storage temperature of 5°C to 40°C. There are no special transportation restrictions for hazardous materials; regular logistics can be used for shipment. For first-time purchases, it is recommended to request a small sample for formulation compatibility testing first.

Question 4

Does emulsifier SG-100 meet environmental requirements? Can a test report be provided?

Accepted Answer

Emulsifier SG-100 has good environmental compliance, and multiple ecotoxicological indicators meet environmental requirements; Guoli Chemical can provide a Certificate of Analysis (COA) for each batch of products, and third-party special environmental test reports can be applied for separately as needed. Detailed Description Emulsifier SG-100 (PEG-100 Stearate) performs well in terms of environmental compliance and is an environmentally friendly nonionic surctant. According to the ecotoxicological data tested by authoritative institutions in Guoli Chemical's product database, this product meets internationally recognized environmental standards in terms of biodegradability, ecotoxicity, heavy metal limits, etc., meeting the selection requirements of downstream customers for green chemicals. In terms of biodegradability, this product has been tested by the OECD 301 method, with a degradation rate greater than 60% in 28 days, belonging to the "readily biodegradable" level. After being discharged into the environment, it can be quickly decomposed by microorganisms and will not accumulate in the ecosystem for a long time. Ecotoxicity tests show that the 96-hour LC₅₀ for fish is greater than 100 mg/L, belonging to the low ecotoxicity level, causing minimal harm to aquatic organisms. In addition, the heavy metal content of the product is strictly controlled at ≤20 mg/kg, and the arsenic content is ≤2 mg/kg, r below the conventional access limits for daily chemicals and industrial products. Regarding test reports, Guoli Chemical issues a Certificate of Analysis (COA) for each batch of emulsifier SG-100, covering appearance, pH value, active content, acid value, saponification value, moisture, heavy metals, and other conventional indicators. If a third-party special environmental test report is required for specific end applications (such as cosmetic registration, REACH compliance, export customs clearance, etc.), or a complete ecotoxicological report including OECD 301 biodegradability, fish acute toxicity, and other items, please contact the sales department of Guoli Chemical. We will coordinate the issuance or entrust a third-party testing institution with CNAS/CMA qualification to provide it according to your needs. Technical Parameters Environmental Related IndicatorsTest DataTest Method/StandardEnvironmental Assessment Biodegradability28-day degradation rate > 60%OECD 301 methodReadily biodegradable Fish Acute Toxicity96 h LC₅₀ > 100 mg/LFish acute toxicity testLow ecotoxicity Total Heavy Metals≤20 mg/kgAtomic absorption/ICPMeets daily chemical requirements Arsenic Content≤2 mg/kgAtomic fluorescence/ICP-MSMeets daily chemical requirements GHS Hazard ClassificationNo classificationGHS classification standardNon-hazardous chemical List of Hazardous ChemicalsNot included"List of Hazardous Chemicals"Non-hazardous chemical Acute Oral ToxicityLD₅₀ > 5000 mg/kgRat acute oral toxicity testPractically non-toxic Skin IrritationIrritation index < 0.5Primary skin irritation testNo significant irritation Genetic ToxicityAmes test negativeBacterial reverse mutation testNo genetic toxicity Application Suggestions Based on the excellent environmental and safety characteristics of emulsifier SG-100, it is particularly suitable for the following fields with strict environmental requirements: Cosmetics and Personal Care Products: Meets the safety requirements for cosmetic ingredients, can be used in creams, lotions, sunscreens, and other leave-on and rinse-off products, complying with EU EC 1223/2009 and China's "Cosmetic Safety Technical Specifications". Export Textile Auxiliaries: Good biodegradability, meets the environmental requirements for auxiliary residues in international textile ecological standards such as OEKO-TEX® Standard 100, and can be safely used in the processing of innt textiles. Pesticide Formulations: Used as an environmentally friendly pesticide emulsifier, low ecotoxicity ensures safety to aquatic organisms during field application, aligning with the development trend of green pesticides. Biodegradable Plastic Processing: When used as an internal lubricant, the product itself is biodegradable and has good compatibility with biodegradable plastic systems such as PLA and PBAT. Precautions Although this product has excellent environmental indicators, the following points still need attention during normal use: Waste must not be directly discharged into sewers or natural water bodies; high-temperature incineration with tail gas purification devices is recommended for disposal; the ester bond of the product may hydrolyze in strong acid (pH8) environments, affecting the use effect and producing free tty acids and polyethylene glycol; avoid long-term use or storage under such extreme conditions. If batch COA or special environmental test reports are required, please contact the sales department of Guoli Chemical in advance, specifying the specific purpose and required test items, so that we can arrange them in a timely manner.

Question 5

What are the advantages of emulsifier SG-100 compared to other similar products?

Accepted Answer

According to the technical data from Guoli Chemical, the core advantages of emulsifier SG-100 (PEG-100 Stearate) lie in its **excellent safety, extremely high monoester purity, wide application adaptability, and outstanding hydrophilic emulsifying ability**, making it a preferred choice in high-end cosmetics and strict industrial fields. The following is a detailed analysis of its advantages based on real product data: ### 1. Extremely Low-Risk Safety and Environmental Characteristics SG-100 has exceptionally vorable toxicological and environmental safety data among similar products, making it suitable for fields with stringent safety requirements: * **Non-toxic and Non-irritating**: Rat acute oral LD₅₀ > 5000 mg/kg, classified as practically non-toxic. Primary skin irritation index 60% degradation in 28 days) and extremely low ecotoxicity to aquatic organisms (fish 96h LC₅₀ > 100 mg/L). ### 2. High Purity Components and Excellent Emulsification Efficiency The high active content of SG-100 ensures stable effects at low addition levels in practical applications: * **High Monoester Content**: Monoester content ≥90%, diester content ≤5%, indicating a very high proportion of active emulsifying components. * **Very High HLB Value**: HLB value up to **18.5-19**, making it a typical hydrophilic emulsifier that is easily soluble in water, ideal for preparing oil-in-water (O/W) emulsions (e.g., light creams, lotions). * **Powerful Emulsification**: Extremely low critical micelle concentration (about 1×10⁻⁴ mol/L), effectively reducing surce tension (1% aqueous solution about 40 mN/m), forming stable and fine emulsions with small amounts. ### 3. Wide Range of Application Scenarios and Good Compatibility As a nonionic surctant, SG-100 shows strong adaptability in complex systems: * **Multi-field Versatility**: Covers cosmetics (O/W emulsifier, solubilizer), textiles (softening antistatic agent), plastics (internal lubricant antistatic agent), and pesticides (high-efficiency emulsifier). * **Strong Chemical Stability**: Stable in weak acids, weak bases, and hard water. Although it may hydrolyze under strong acid or alkaline conditions, it has excellent stability within the pH range of 3-8 of conventional formulations and can be compounded with various anionic, cationic, and nonionic auxiliaries. ### 4. Specific Application Suggestions and Dosage Based on its superior properties, the following recommendations are given: * **Cosmetic Creams/Lotions**: As the main emulsifier, recommended dosage 1.0% – 3.0%. It imparts a fine, bright white appearance and a refreshing, non-greasy skin feel. * **Sun Protection Products**: As an efficient solubilizer and dispersant, recommended dosage 0.5% – 2.0%, helping to uniformly disperse oil-soluble UV filters in water-based systems. * **Textile Softening Treatment**: Recommended dosage 0.5% – 2.0% (on weight of bric), providing a soft, smooth hand feel and reducing static electricity. * **Plastic Processing**: As an internal lubricant, recommended dosage 0.2% – 1.0%, effectively improving melt flow and demolding, while imparting antistatic properties to the product. ### 5. Advantages Compared to Other Low-EO SG Series Products Compared to low-EO products in the same series, such as SG-6 or SG-10: * **Water Solubility**: SG-100 is highly soluble in water, while low-EO SG series are mostly oil-soluble or dispersible. * **Functional Focus**: SG-100 focuses more on **efficient O/W emulsification and solubilization**, while low-EO products mainly serve as W/O emulsifiers or wetting dispersants in the oil phase. * **Skin Feel**: SG-100 provides a more refreshing, non-greasy skin feel after film formation, making it more suitable for modern skincare formulations. --- ### Technical Parameters Quick View (Real Data Source) | Parameter Name | Technical Parameter | | :--- | :--- | | **Ion Type** | Nonionic | | **Appearance (25℃)** | White to slightly yellow waxy solid | | **HLB Value** | 18.5 – 19 | | **Monoester Content** | ≥ 90% | | **Acid Value** | ≤ 2 mgKOH/g | | **Saponification Value** | 12 – 16 mgKOH/g | | **Active Content** | ≥ 99% | | **Water Content** | ≤ 1% | | **pH (1% Aqueous Solution)** | 5.0 – 7.0 | | **Melting Point** | 50 – 55℃ | | **Heavy Metal Content** | ≤ 20 mg/kg | **Cautions**: Although SG-100 is safe and non-toxic, standard operating procedures should still be followed during handling to avoid contact with eyes. Its storage temperature should be controlled between 5℃ and 40℃, protected from light and moisture, to ensure product quality and shelf life.

Question 6

How to store emulsifier SG-100? What is the shelf life?

Accepted Answer

Emulsifier SG-100 should be stored in a cool, dry, and well-ventilated place. The recommended storage temperature is 5°C to 40°C. Under proper storage conditions, the shelf life is generally 24 months (2 years). Detailed Description Emulsifier SG-100 (PEG-100 Stearate) is a nonionic surctant with relatively stable chemical properties. It is not prone to adverse reactions with acids, alkalis, or hard water, but proper storage is crucial to maintain product performance and extend its service life. The product appears as a white to slightly yellow waxy solid, and the storage temperature should always be maintained above its melting point to ensure good fluidity and ease of use. Regarding shelf life, according to the product database of Guoli Chemical, there is no officially labeled specific shelf life data for this product. However, referring to the industry standard for similar nonionic surctants (polyethylene glycol stearates), under strict compliance with recommended storage conditions, the shelf life is typically 24 months (2 years) from the date of manucture. It is recommended to follow the "first-in, first-out" inventory management principle and check the product appearance and properties before use. If the product shows obvious discoloration, odor, layering, or other abnormal phenomena, stop using it. Storage Condition Requirements Storage ElementSpecific Requirements Environmental ConditionsA dedicated warehouse or area that is cool, dry, and well-ventilated, away from direct sunlight, heat sources, and ignition sources Temperature Range5°C to 40°C (should be maintained above the melting point or pour point; slight temperature fluctuations do not affect quality) Container MaterialSealed original container, or stainless steel, polyethylene, or lined carbon steel storage tanks Sealing RequirementReseal the container immediately after use to prevent moisture absorption and contamination Isolation RequirementKeep away from strong oxidizers, strong acids, strong alkalis, and other incompatible substances Usage Recommendations During storage, it is recommended to regularly check the container sealing and product appearance. After opening, use it as soon as possible to avoid prolonged exposure to air and moisture absorption. If the product is used in the production of cosmetics or personal care products, it is recommended to perform necessary microbiological tests after opening before use to ensure the safety of the final product. For customers purchasing in bulk, contact the Guoli Chemical sales team to confirm the production date and recommended use period for the specific batch. Precautions Empty containers may have product residues. Do not cut, weld, or use them to hold other materials before cleaning. Storage areas should be equipped with emergency eyewash stations and shower cilities for use in case of accidental contact. Do not discharge the product into drains or the environment. Waste disposal should comply with local regulations, and high-temperature incineration is recommended. Slight temperature cycle fluctuations will not affect product quality, but avoid repeated freeze-thaw cycles or prolonged storage at excessively high temperatures.

Question 7

What safety precautions should be taken when using emulsifier SG-100?

Accepted Answer

Emulsifier SG-100 is classified as practically non-toxic and non-dangerous chemical. Under normal conditions of use, it poses no significant harm to human health or the environment, but standard chemical operating procedures and basic personal protective measures should still be followed. Detailed Explanation Emulsifier SG-100 (PEG-100 Stearate) is a non-ionic surctant. Based on existing toxicological and ecotoxicological data, this product has no GHS hazard classification and is not listed in the Catalog of Hazardous Chemicals. The acute oral LD₅₀ in rats is > 5000 mg\/kg, indicating practically non-toxic; primary skin irritation index < 0.5, no significant irritation; Ames test negative, no genotoxicity; 28-day biodegradation rate > 60%, readily biodegradable. Overall, this product is a low-toxicity, low-irritation safe raw material. Despite the low safety risk, standard chemical operating procedures should be followed in industrial use. The operating area should be well-ventilated, and closed systems should be used for material transfer and feeding when process conditions permit. After operation, before eating, before smoking, and before using the restroom, hands must be thoroughly washed with soap and water. Work clothes should be stored separately, and eating, drinking, or smoking is prohibited during work and in the workplace to avoid cross-contamination. In terms of personal protection, special respiratory protection is generally not required. However, if the operating environment is poorly ventilated or there is a possibility of aerosol formation, it is recommended to wear appropriate respiratory protective equipment. For prolonged or repeated contact, chemical-resistant gloves (e.g., nitrile or neoprene) are recommended. If there is a risk of splashing, safety goggles or a ce shield should be worn. It is recommended to install emergency eyewash stations and safety showers near the operation point for emergencies. Safety Parameters at a Glance ItemDataConclusion Hazardous Chemical ClassificationNon-hazardous chemicalNot listed in the Catalog of Hazardous Chemicals Acute Toxicity (oral, rat)LD₅₀ > 5000 mg\/kgPractically non-toxic Skin IrritationIrritation index < 0.5No significant irritation Eye IrritationMild reversible irritationDoes not meet criteria for serious eye damage classification Skin SensitizationNo sensitizationSafe Genotoxicity (Ames test)NegativeNo genotoxicity Reproductive ToxicityNo evidenceSafe Ecotoxicity (fish, 96h)LC₅₀ > 100 mg\/LLow ecotoxicity Biodegradability28-day degradation > 60% (OECD 301 method)Readily biodegradable Emergency Procedures First Aid Measures for Persons Inhalation: Move the person to fresh air, keep breathing unobstructed. If discomfort persists, seek medical attention immediately. Skin Contact: Immediately remove contaminated clothing, rinse thoroughly with plenty of running water and soap or a mild detergent. If irritation persists, seek medical advice. Eye Contact: Immediately rinse with plenty of water, lifting eyelids, for at least 15 minutes. If wearing contact lenses and easily removable, remove them early during rinsing. If eye irritation persists after rinsing, seek medical attention. Ingestion: Do NOT induce vomiting (unless instructed by medical personnel). Rinse mouth thoroughly with water. If conscious, drink a small amount of water (about 200-300 mL) to dilute. Seek medical attention immediately and present the product safety data sheet or label. Spill Emergency Response Evacuate non-essential personnel. Response personnel should wear safety goggles, gloves, and protective clothing. Prevent spills from entering sewers, surce water, and soil. For small spills, absorb with inert absorbent material (e.g., vermiculite, dry sand) and collect in a covered container. For large spills, first dike or pump recovery, then treat residual with inert absorbent. Wash contaminated area with plenty of water and detergent, collect the washings thoroughly and dispose of in accordance with regulations. Firefighting Measures This product is not flammable. Select extinguishing media based on the surrounding fire source. Use water spray, alcohol-resistant foam, dry powder, or carbon dioxide. Combustion may produce irritating gases such as carbon monoxide and carbon dioxide. Firefighters must wear self-contained positive-pressure breathing apparatus and full fire-protective clothing. Storage Recommendations Store in a cool, dry, well-ventilated dedicated warehouse, away from direct sunlight, heat sources, and ignition sources. Recommended storage temperature is 5°C to 40°C, and should be maintained above the product's melting point to ensure good fluidity. Use sealed original containers or compatible storage tanks (e.g., stainless steel, polyethylene, or lined carbon steel). Keep away from incompatible materials such as strong oxidizers, strong acids, and strong bases. Do not cut, weld, or store other materials in empty containers before cleaning. Waste Disposal Considerations Dispose of waste product, contaminated containers, and absorbent materials in accordance with local and national waste management regulations. Incineration at high temperature with flue gas treatment is recommended. Do not discharge into sewers or the environment. Empty and clean containers before disposal.

Question 8

How to use emulsifier SG-100? What is the recommended addition amount?

Accepted Answer

According to the technical data from Guoli Chemical, the usage and addition amount of emulsifier SG-100 depend on the specific application field. The Guoli Chemical product database has not yet included specific recommended addition amounts for various fields, so it is usually necessary to determine the optimal dosage through small-scale trials. The following is a detailed usage guide based on its product characteristics and general industry experience: ### 1. Product Properties and Dispersion Key Points Emulsifier SG-100 (PEG-100 Stearate) is a **white to slightly yellowish waxy solid** at room temperature, with a melting point of **50–55°C**. Therefore, it typically needs to be **heated to melt** before mixing with the oil phase for emulsification, which is different from liquid emulsifiers that can be directly added cold. ### 2. Usage Recommendations by Application Field | Application Field | Functional Role | Recommended Usage Method and Reference Addition Amount | | :--- | :--- | :--- | | **Cosmetics** | O/W emulsifier, solubilizer | Used as primary emulsifier or co-emulsifier. Heat to 60–65°C to melt, mix evenly with oil-phase ingredients as the oil phase. Heat the water phase to a similar temperature, then add the oil phase to the water phase and homogenize for emulsification.**Creams/Lotions: 1.0% – 3.0%****Sunscreen Products: 1.5% – 4.0%** | | **Textile Industry** | Softener, antistatic agent | Can be used alone or compounded with other auxiliaries. When used alone, it is usually first prepared into a 5-10% emulsion, then applied in padding or dipping processes for brics.**Padding method: 10 – 30 g/L (working solution)** | | **Plastics Industry** | Internal lubricant, antistatic agent | Can be added directly during the mixing stage. Its good thermal stability allows it to function effectively at processing temperatures.**0.3% – 1.0% of total resin amount** | | **Pesticide Formulations** | Emulsifier | Used in combination with other anionic/nonionic emulsifiers to optimize the stability of emulsifiable concentrates or aqueous emulsions. After heating, dissolve into the oil phase of the pesticide technical concentrate.**3% – 8% of total emulsifiable concentrate/aqueous emulsion** | ### 3. Operational Recommendations - **System pH**: SG-100 is a nonionic surctant, exhibiting excellent stability in **acidic, alkaline, and hard water** environments, with wide applicability. - **Synergistic Compounding**: When used alone, its emulsifying power is mild. It is often compounded with low-HLB emulsifiers (e.g., SG-6, Stearic acid polyoxyethylene (6) ether) to obtain a denser and more stable cream or emulsion. - **Preliminary Experiments**: The above addition amounts are general industry experience values. Due to differences in formulation systems, **it is strongly recommended to conduct small-scale trials to determine the optimal addition amount that meets stability requirements and cost-effectiveness before large-scale production.** ### 4. Safety and Storage Precautions - **Storage**: Store sealed in a cool, dry, well-ventilated place. Recommended storage temperature **5–40°C**, avoid direct sunlight. - **Protection**: The product has very low skin irritation, but it is still recommended to follow standard chemical handling procedures, wear protective gloves and goggles, especially when handling hot molten materials to prevent burns. - **Cleanup**: In case of spillage, allow to cool and solidify, then shovel into a container. Residues can be cleaned with hot water and detergent.

Question 9

What industries and processes is Emulsifier SG-100 mainly used in?

Accepted Answer

Emulsifier SG-100 is mainly used in four major industries: cosmetics and personal care, textile industry, plastics industry, and pesticide formulations, as an efficient nonionic O/W emulsifier, softener, antistatic agent, and internal lubricant. Detailed Description Emulsifier SG-100 (PEG-100 Stearate) is a nonionic surctant produced by Guoli Chemical, appearing as a white to slightly yellow waxy solid. Due to its molecular structure containing both hydrophilic polyoxyethylene long chains and lipophilic stearic acid groups, with a high HLB value, it exhibits excellent emulsifying and wetting capabilities, and is resistant to acids, alkalis, and hard water. Therefore, it has wide and irreplaceable applications in multiple industrial fields. In formulations, SG-100 primarily acts as an O/W (oil-in-water) emulsifier, stably dispersing oily components in the aqueous phase to form a uniform and fine emulsion system. At the same time, its solubilizing function can effectively enhance the solubility and bioavailability of lipophilic active ingredients in water-based systems, which is especially critical for cosmetics and pesticide formulations. Specific Applications and Processes in Various Industries I. Cosmetics and Personal Care Industry SG-100 is widely used in the formulation of creams, lotions, sunscreens, cial cleansers, etc. In the emulsification process, SG-100 is typically heated together with the oil phase components to 70–80°C to melt, then mixed and homogenized with the water phase to form a stable O/W emulsion. Its advantages include: Imparts a stable, fine texture and silky skin feel to the product Enhances the dispersion and penetration of active ingredients (e.g., Vitamin E, sunscreens) Improves the heat and cold stability of the formulation II. Textile Industry In textile processing, SG-100 is mainly used as a softening finishing agent and antistatic agent. Its application processes include: Padding process: SG-100 is formulated into a working solution; the bric is padded and dried to obtain a soft and smooth hand feel Synthetic fiber oil agent: Used as a component of spinning oil to reduce friction between fibers and metals, while eliminating static buildup during processing Finishing process: Imparts durable antistatic properties to the finished bric, enhancing wearing comfort III. Plastics Industry SG-100 plays a dual role as an internal lubricant and antistatic agent in plastics processing: Internal lubrication: Improves the fluidity of the resin melt, reducing processing torque and energy consumption, and minimizing equipment wear Mold release: Reduces friction between the product and the mold, improving demolding efficiency and surce finish Antistatic: Migrates to the product surce to form a conductive layer, preventing dust adsorption, suitable for electronic packaging materials, appliance housings, etc. IV. Pesticide Formulations SG-100 is used as an emulsifier in pesticide formulations such as emulsifiable concentrates (EC), emulsion in water (EW), and microemulsions (ME): Highly disperses oil-soluble active ingredients in water-based systems to form stable emulsions Ensures uniform wetting and spreading of the spray liquid on crop leaves during application Improves pesticide utilization and control efficacy Technical Parameters ParameterSpecification Chemical NamePolyoxyethylene (100) Stearate (PEG-100 Stearate) CAS No.9004-99-3 Ionic TypeNonionic AppearanceWhite to slightly yellow waxy solid HLB ValueApproximately 18–19 (theoretical, high HLB O/W emulsifier) SolubilitySoluble in hot water, dispersible in warm water Hard Water ResistanceExcellent Acid/Alkali ResistanceGood Application Recommendations Recommended dosage in cosmetic formulations: 0.5%–5% (by weight of total formula), adjust according to oil phase content and desired consistency Textile softening finishing: Working solution concentration generally 5–20 g/L, with drying temperature 100–130°C Plastics processing: Recommended addition amount is 0.1%–1.0% of resin weight, can be added during mixing stage Pesticide formulations: Total emulsifier dosage is generally 5%–15% of the total formulation weight, can be compounded with other surctants for optimal emulsification effect Precautions This product is not a hazardous chemical, no GHS hazard classification, no significant harm to humans or the environment under normal use conditions It is recommended to maintain ventilation during operation; for prolonged contact, wear nitrile or neoprene gloves Storage temperature is recommended at 5°C to 40°C, avoid direct sunlight and keep away from strong oxidizing agents The product is a waxy solid; it can be appropriately heated to melt before use for easier feeding and dispersion When compounding with anionic surctants, compatibility should be noted; small-scale testing is recommended first

Question 10

What are the physicochemical technical parameters of emulsifier SG-100?

Accepted Answer

Emulsifier SG-100 is a nonionic surctant with a high HLB value, exhibiting excellent emulsifying, solubilizing, and dispersing properties. Its physicochemical technical parameters are shown in the table below. Detailed Description Emulsifier SG-100, with the chemical name Polyoxyethylene (100) Stearate (PEG-100 Stearate), has a CAS number of 9004-99-3. The product appears as a white to light yellow waxy solid with a molecular weight of approximately 4670. It is a nonionic surctant with an HLB value as high as 18.5-19, possessing strong hydrophilicity and being readily soluble in water, ethanol, acetone, and other organic solvents. This product has good chemical stability, remaining stable in weak acids, weak alkalis, and hard water (pH range 3-8), but may undergo ester bond hydrolysis under strong acid or strong alkali conditions. It has extremely low foam, a cloud point greater than 100°C, and is suitable for use in high-temperature processes. The monoester content is ≥90%, and the high active ingredient content ensures excellent performance. From a safety and environmental perspective, this product is not classified as a hazardous chemical. It has good biodegradability (OECD 301 method, 28-day degradation rate >60%), low ecotoxicity, and is an environmentally friendly surctant. Technical Parameters Parameter Item Specification Value Chemical Name Polyoxyethylene (100) Stearate CAS Number 9004-99-3 Molecular Formula C₁₇H₃₅COO(CH₂CH₂O)ₙH, n≈100 Molecular Weight Approx. 4670 Ionic Type Nonionic Appearance (25°C) White to light yellow waxy solid HLB Value 18.5 - 19 Cloud Point >100°C Melting Point 50 - 55°C Active Content ≥99% pH Value (1% Aqueous Solution) 5.0 - 7.0 pH Value (5% Aqueous Solution) 5.0 - 7.0 Moisture Content ≤1% Acid Value ≤2 mgKOH/g Saponification Value 12 - 16 mgKOH/g Hydroxyl Value ≤10 mgKOH/g Iodine Value <2 gI₂/100g Density ≤1.0 g/cm³ Kinematic Viscosity (50°C) Approx. 50 mm²/s Refractive Index (50°C) Approx. 1.45 Flash Point >200°C Surce Tension (1% Aqueous Solution, 25°C) Approx. 40 mN/m Critical Micelle Concentration (CMC) Approx. 1×10⁻⁴ mol/L Monoester Content ≥90% Diester Content ≤5% Free Alcohol ≤1% Unsaturation <0.1 mol/kg Heavy Metals ≤20 mg/kg Arsenic (As) ≤2 mg/kg Solubility Readily soluble in water, ethanol, acetone, and other organic solvents Foam Characteristics Low foam Hygroscopicity Slightly hygroscopic Chemical Stability Stable in weak acids, weak alkalis, and hard water (pH 3-8); may hydrolyze under strong acid/alkali conditions

Emulsifier SG-100

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