G-18 Glycerol Polyoxyethylene Ether (Polyoxyethyl Glycerol Ether, CAS: 31694-55-0) is a non-ionic surfactant with a high HLB value (approximately 18), appearing as a colorless to light yellow transparent viscous liquid, easily soluble in water.
Before use, it is recommended to pre-mix it with a small amount of water or aqueous components in the formulation, stirring until completely dissolved before adding it to the main system. In cream, lotion, and other cosmetic formulations, it is usually added when the water phase is heated to 70~80°C, then mixed with the oil phase for homogenization and emulsification. In industrial cleaning agents, it can be directly added to water together with other surfactants and auxiliaries and stirred until dissolved. In coatings and ink systems, it should be added during the grinding and dispersion stage to fully exert its wetting and dispersing effect.
This product has good chemical stability in the pH range of 3~12, but should avoid long-term coexistence with strong acids, strong bases, and strong oxidizing agents. Due to the product's hygroscopicity, it must be sealed promptly after opening and stored in a cool, dry environment at 5~30°C.
| Parameter Item | Indicator | Parameter Item | Indicator |
|---|---|---|---|
| Appearance | Colorless to light yellow transparent liquid | Ion Type | Non-ionic |
| HLB Value | ~18 | Active Content | ≥99% |
| Density (25°C) | 1.05~1.10 g\/cm³ | pH Value (1% aqueous solution) | 5.0~7.0 |
| Hydroxyl Value | 180~200 mgKOH\/g | Cloud Point | >100°C |
| Moisture Content | ≤0.5% | Acid Value | ≤0.5 mgKOH\/g |
| Surface Tension (25°C) | 35~40 mN\/m | Critical Micelle Concentration (CMC) | Approximately 0.1~1.0 g\/L (25°C) |
| Kinematic Viscosity | 100~200 mm²\/s | Flash Point | >150°C |
Note: The above data are sourced from the Guoli Chemical product database.
The following are typical reference dosages for various application fields (based on total formulation weight). The actual amount should be optimized through orthogonal experiments according to the formulation system, process conditions, and performance targets:
| Application Field | Functional Role | Recommended Dosage (wt%) |
|---|---|---|
| Cosmetic Creams\/Lotions | O\/W Emulsifier, Moisturizing Aid | 1.0~5.0% |
| Makeup Removers\/Facial Cleansers | Solubilizer, Mild Cleanser | 2.0~8.0% |
| Fragrance Solubilization Systems | Solubilizer | Fragrance to product ratio approximately 1:2 to 1:5 |
| Textile Softening\/Antistatic Treatment | Softener, Antistatic Agent | Concentration in bath 0.5~3.0 g\/L (after dilution) |
| Metalworking Fluids (Cutting\/Grinding) | Lubricant, Rust Inhibitor | 2.0~10.0% |
| Coatings and Inks | Pigment Wetting and Dispersing Agent | 0.5~3.0% (based on pigment weight) |
| Industrial Hard Surface Cleaners | Wetting and Penetrating Agent, Detergent Aid | 1.0~5.0% |
| Polyurethane Foam | Foam Stabilizer Component | 0.5~2.0% |
Note: The dosage data are based on Guoli Chemical application experience and general industry practices. The database does not contain precise dosage parameters for each field; formulation experiments should be used as the standard.