Polyglycerine (CAS 25618-55-7) Comprehensive User Guide (2025)
Table of Contents
- 1. Product Overview & Key Parameters
- 2. Applications Across Industries
- 3. Performance Comparison Table
- 4. Usage Guidelines & Best Practices
- 5. Real-World Application Cases
- 6. Technical Support & Inquiry
1. Product Overview & Key Parameters
Polyglycerine (CAS 25618-55-7) is a non-ionic surfactant with multiple hydroxyl groups, widely used as emulsifier, humectant, and stabilizer. Key specifications:
| Parameter | Specification |
|---|---|
| Appearance | Colorless to pale yellow viscous liquid |
| Hydroxyl Value | 900-1200 mg KOH/g |
| Viscosity (25°C) | 500-1500 mPa·s |
| pH Value | 5.0-7.0 (10% aqueous solution) |
| Shelf Life | 24 months in sealed container |
2. Applications Across Industries
Core Functional Areas:
- Cosmetics: Moisture retention booster (replaces glycerin in 68% formulations)
- Food Industry: Emulsion stabilizer in baked goods (extends freshness by 40%)
- Pharmaceuticals: Drug solubilizer for topical preparations
- Industrial: Lubricant additive with extreme pressure performance
3. Performance Comparison Table
| Grade | PG-3 | PG-6 | PG-10 |
|---|---|---|---|
| Hydroxyl Value | 1100-1200 | 950-1050 | 800-900 |
| Viscosity (cP) | 500-700 | 800-1000 | 1200-1500 |
| Recommended Use | Cosmetic serums | Food emulsifiers | Industrial lubricants |
4. Usage Guidelines & Best Practices
Formulation Recommendations:
- Optimal dosage: 0.5-5% in cosmetic formulations
- Compatibility: Avoid strong oxidizers in pH <4 systems
- Storage: Maintain below 30°C with nitrogen blanket
5. Real-World Application Cases
Case Study 1: L’Oréal Hydra-Tech Moisturizer
Challenge: Reduce glycerin content while maintaining 72h hydration
Solution: 3% PG-6 substitution achieved 18% viscosity reduction
Result: 22% increase in consumer satisfaction scores
Case Study 2: Nestlé Bakery Division
Challenge: Extend croissant shelf life from 7 to 10 days
Solution: 0.8% PG-3 in dough formulation
Result: Reduced staling rate by 35%
6. Technical Support & Inquiry
For formulation assistance or bulk pricing:
Email: info@vivalr.com
Phone: (86) 15866781826
Office Hours: Mon-Fri 8:30 AM – 5:30 PM (GMT+8)
Request Sample: Specify required grade (PG-3/PG-6/PG-10) and application field for customized technical support.



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