G-25 Glycereth-25 (Glycereth-25), produced by Guoli Chemical, is a mild nonionic surfactant. According to the Guoli Chemical product database, its effective content is ≥99%, HLB value is about 13.5, cloud point is above 100°C (1% aqueous solution), and critical micelle concentration (CMC) is approximately 0.1% (w/v). It has good water solubility and chemical stability, maintaining functional integrity over a wide pH range.
Since the product is a colorless to slightly yellow transparent liquid at room temperature (freezing point below -10°C) and has low foaming characteristics, the following general operation method can be used: under stirring, slowly add G-25 to the aqueous phase, utilizing its excellent water solubility for rapid dispersion; for oil-water mixed systems, it can be added to the aqueous phase preheated to 40~60°C and then mixed with the oil phase for emulsification, or pre-mixed with the oil phase followed by water addition for phase inversion. The product viscosity is approximately 150 mPa·s (25°C), making it easy to handle and pump, suitable for automated production line metering addition.
| Parameter Item | Indicator/Value | Data Source |
|---|---|---|
| Appearance | Colorless to slightly yellow transparent liquid | Guoli Chemical Database |
| HLB Value | Approximately 13.5 | Guoli Chemical Database |
| Ionic Type | Nonionic | Guoli Chemical Database |
| Active Content | ≥99% | Guoli Chemical Database |
| Cloud Point (1% Aqueous Solution) | >100°C | Guoli Chemical Database |
| Critical Micelle Concentration (CMC) | Approximately 0.1% (w/v) | Guoli Chemical Database |
| pH Value (1% Aqueous Solution) | 5.0~7.0 | Guoli Chemical Database |
| Water Solubility | Easily soluble in water | Guoli Chemical Database |
| Viscosity (25°C) | Approximately 150 mPa·s | Guoli Chemical Database |
| Foaming Property | Low foaming | Guoli Chemical Database |
| Surface Tension (0.1%, 25°C) | Approximately 32 mN/m | Guoli Chemical Database |
| Freezing Point | <-10°C (liquid) | Guoli Chemical Database |
| Hydroxyl Value | Approximately 130~150 mg KOH/g | Guoli Chemical Database |
Note: Specific dosage data vary by application scenario. The following recommended dosages are based on general industry practices. For specific physicochemical indicator ranges from the Guoli Chemical product database, please refer to the Certificate of Analysis (COA).
Cosmetics and Personal Care Products: When used as a solubilizer, it is recommended to add 3 to 5 times the amount of the essential oil/fragrance to be solubilized (i.e., fragrance:solubilizer ≈ 1:3~1:5) to produce transparent aqueous formulations; as an O/W emulsifier, the recommended dosage is 2%~5% of the total formulation, which can be combined with low HLB emulsifiers (such as G-2, G-3 series) to optimize emulsion stability; as a moisturizing additive in rinse-off products such as shampoos and body washes, a recommended addition of 1%~3% can effectively improve post-wash skin feel.
Textile Industry: When used as a spinning oil component, it is recommended to add 5%~15% of the total oil agent, combined with smoothing agents and antistatic agents; for fabric softening finishing, the finishing solution concentration is recommended at 0.5%~3% (based on fabric weight), applied via padding and drying.
Metalworking Fluids: As an emulsifier and lubricant in water-based cutting fluids and grinding fluids, the recommended dosage is 5%~10% of the concentrate, combined with mineral oil, rust inhibitors, and other components to form emulsified oil or semi-synthetic fluids, diluted to 3%~10% working concentration before use. Its excellent hard water resistance (cloud point >100°C) ensures long-term stability of the working fluid under high hardness water conditions.
Industrial Cleaners: As a low-foaming surfactant, the recommended dosage is 2%~8%, suitable for high-pressure spray cleaning and hard surface cleaning formulations, with better results when combined with alkaline additives and chelating agents.
Emulsion Polymerization: As an emulsifier and stabilizer in acrylic, styrene-acrylic, etc., emulsion polymerization systems, the recommended dosage is 1%~4% of the total monomer amount, effectively controlling latex particle size and providing good mechanical and freeze-thaw stability.
Pesticide Formulations: As an emulsifier and spreading agent in water-based pesticide formulations (EC, EW, ME, etc.), the recommended dosage is 5%~15% of the total formulation, helping to improve the wetting and spreading performance of the spray liquid on plant leaves.