Propylene Glycol
Appearance: Transparent liquid
Application: Skin care products, hair dye, toothpaste, soap
Purity: >99.8%
Propylene Glycol is a versatile and widely-used humectant, solvent, and conditioning agent in personal care, cosmetics, and household chemical formulations. As a high-performance multifunctional ingredient, propylene glycol helps maintain optimal hydration by attracting and binding water molecules to the skin. Its excellent solvent properties make it particularly valuable in serums, lotions, creams, and cleansers, where it enhances the stability and delivery of active ingredients while improving product texture.
| Property | Details |
| Chemical Name | Propylene glycol |
| CAS Number | 57-55-6 |
| Molecular Formula | CH3CH(OH)CH2OH |
| Appearance | Transparent liquid |
| Odor | Odorless |
| Boiling Point at 760 mmHg (°C) | 188-189°C |
| Melting Point (°C) | <121-128°C |
| Freezing Point (°C) | -59°C |
| Vapor Density (Air=1) | 2.62 |
| Liquid Density g/cm³ (20°C) | 1.03 |
| Dynamic Viscosity (25°C) (mPa·s) | 43.4 |
| Storage | Store in a cool, dry place, away from sunlight |
| Shelf Life | 2 years under proper storage conditions |
