G-25 Glycereth-25 (CAS: 31694-55-0) is a classic nonionic surfactant introduced by Guoli Chemical. Its molecular structure consists of a natural glycerol backbone linked to 25 ethylene oxide (EO) units through precisely controlled polymerization, featuring both polyhydrophilic groups and polyoxyethylene chains. This unique structure imparts a high hydrophilic-lipophilic balance, enabling exceptional reduction of oil-water interfacial tension and significant solubilization and emulsification of fragrances, essential oils, and poorly soluble active ingredients, forming stable and fine dispersions.
This product maintains stable performance across a wide pH range, resists acids, alkalis, and electrolytes, and effectively counteracts interference from calcium and magnesium ions in hard water, ensuring formulation reliability under different water conditions. Additionally, as a nonionic surfactant, G-25 exhibits very low skin and eye irritation, with excellent biodegradability, meeting the requirements of modern green chemistry, making it an ideal choice for formulating mild and sustainable products.
| Parameter | Specification |
|---|---|
| Chemical Name | Polyoxyethylene (25) Glycerol Ether |
| INCI Name | Glycereth-25 |
| CAS Number | 31694-55-0 |
| Ionicity | Nonionic |
| Chemical Composition | Polyether of glycerol and ethylene oxide |
| Appearance | Colorless to slightly yellow liquid or paste (form may vary with temperature) |
| HLB Value | Not available (please refer to product COA) |
| Cloud Point | Not available (please refer to product COA) |
| Hydroxyl Value | Not available (please refer to product COA) |
| pH Range | Stable over a wide pH range, resistant to acids, alkalis, and electrolytes |
Note: For specific physicochemical parameter ranges (such as hydroxyl value, moisture, acid value, etc.), please refer to the Certificate of Analysis (COA). These are basic parameters. For detailed safety handling instructions, please consult the Safety Data Sheet (SDS).
Personal Care & Cosmetics: As a highly effective solubilizer for preparing transparent micellar water, skincare serums, perfumes, and gel products; as an O/W emulsifier for formulating light lotions and creams; as a moisturizing additive in rinse-off products such as shampoos and body washes, significantly improving post-wash hydration and smooth skin feel.
Textile Industry: Used as a key component in spin finishes for synthetic fibers, providing excellent antistatic properties and fiber cohesion; as a softener in fabric finishing, imparting a fluffy and smooth hand feel and effectively reducing static electricity caused by fiber friction.
Metalworking Fluids: As an emulsifier and lubricant in water-based cutting and grinding fluids, forming stable emulsions that effectively dissipate heat, reduce friction and wear, improve machining accuracy, and extend tool life.
Industrial Cleaners: Suitable for high-pressure spray cleaning and hard surface cleaning as a low-foaming or controlled-foaming surfactant, providing excellent wetting, penetration, and solubilization capabilities, effectively removing oils and dirt, and easily rinsing without residue.
Emulsion Polymerization: Used as an emulsifier and stabilizer in the emulsion polymerization of synthetic resins, coatings, and adhesives, helping to disperse monomers and control latex particle size, improving the storage stability and film-forming properties of the final product.