Stearic Acid Polyoxyethylene Ether SG-10 (CAS: 9004-99-3) is a fatty acid polyoxyethylene ester nonionic surfactant produced by Guoli Chemical. Its molecular structure consists of a hydrophilic polyoxyethylene chain (approximately 10 EO units) and a lipophilic stearate ester group, appearing as a light yellow paste to solid. This product exhibits excellent emulsifying, wetting, and dispersing capabilities, effectively reducing interfacial tension between oil and water, especially suitable for preparing O/W (oil-in-water) emulsion systems.
This product demonstrates excellent chemical stability in acidic, alkaline, and hard water media, and can be well compatible with various anionic, cationic, and nonionic surfactants. It features mild and non-irritating properties, ensuring high safety in use. Its application range is extremely broad, covering personal care products, textile dyeing and printing, household and industrial detergents, metalworking fluids, pesticide formulations, and emulsion polymerization, among others.
| Parameter | Value |
|---|---|
| Chemical Name | Polyoxyethylene (10) Stearate |
| Ionic Type | Nonionic |
| HLB Value | Approx. 13.5 |
| Appearance (25°C) | Light yellow paste to solid |
| Active Content | ≥99% |
| pH (1% aqueous solution) | 5.0-7.0 |
| Melting Point | 35-40°C |
| Acid Value | ≤2 mgKOH/g |
| Saponification Value | 85-95 mgKOH/g |
| Hydroxyl Value | 65-75 mgKOH/g |
| Cloud Point (1% aqueous solution) | 45-55°C |
| Moisture | ≤0.5% |
| Iodine Value | ≤2 gI/100g |
| Surface Tension (25°C, 0.1%) | Approx. 31 mN/m |
| Critical Micelle Concentration (CMC) | Approx. 0.06 g/L |
| Dynamic Viscosity (40°C) | Approx. 50-80 mPa·s |
| Flash Point | >180°C |
In cosmetics and personal care products, SG-10 can serve as a core O/W emulsifier for creams, lotions, and cleansing milks, imparting a fine texture and good skin feel. In the textile dyeing and printing field, SG-10 can be used as a leveling agent, softener, and antistatic agent to improve dyeing uniformity and fabric hand feel. In metalworking fluids, it is recommended as a basic emulsifier and stabilizer for emulsified cutting fluids; in pesticide emulsifiable concentrate formulations, it ensures rapid and stable dispersion of active ingredients in water. Additionally, it performs excellently in processes such as emulsion polymerization (e.g., acrylate emulsions), leather fatliquoring and degreasing, and water-based paint dispersion.