Brief Introduction:
Propylene Glycol (PG), with the chemical formula C₃H₈O₂, is a colorless, odorless, and viscous liquid belonging to the glycol family. It is a versatile chemical widely used as a humectant, solvent, and preservative in various industries, including food, pharmaceuticals, cosmetics, and industrial applications. Propylene Glycol is known for its low toxicity, excellent solubility, and stability, making it a preferred choice in many formulations.
| Property | Specification |
|---|---|
| Chemical Formula | C₃H₈O₂ |
| Molecular Weight | 76.10 g/mol |
| Appearance | Colorless, viscous liquid |
| Boiling Point | 188°C |
| Melting Point | -59°C |
| Density | 1.036 g/cm³ (at 20°C) |
| Solubility | Miscible with water, acetone, and chloroform |
| Purity | ≥99.5% |
| Viscosity | 56 cP (at 20°C) |
| Refractive Index | 1.432–1.434 |
| CAS Number | 57-55-6 |
Applications:
Propylene Glycol is widely used in various industries, including:
Food Industry:
Used as a food additive (E1520) for moisture retention, texture improvement, and as a solvent for flavors and colors.
Found in baked goods, dairy products, and beverages.
Pharmaceuticals:
Acts as a solvent, excipient, and stabilizer in oral, topical, and injectable medications.
Used in cough syrups, ointments, and lotions.
Cosmetics and Personal Care:
Functions as a humectant, emollient, and solvent in skincare, haircare, and hygiene products.
Found in moisturizers, deodorants, and toothpaste.
Industrial Applications:
Used as an antifreeze and coolant in HVAC systems and automotive applications.
Acts as a solvent in paints, coatings, and inks.
E-Liquids:
A key component in e-cigarette liquids as a carrier for nicotine and flavors.
Animal Feed:
Used as a preservative and moisture stabilizer in animal feed.
Features:
Propylene Glycol offers several key features, including:
Low Toxicity: Safe for use in food, pharmaceuticals, and cosmetics.
High Solubility: Miscible with water and many organic solvents.
Humectant Properties: Retains moisture and prevents drying.
Stability: Chemically stable under normal conditions.
Versatility: Suitable for a wide range of applications across industries.
Eco-Friendly: Biodegradable and environmentally friendly.
Packaging:
Propylene Glycol is available in the following packaging options:
25 kg and 50 kg drums (plastic or metal).
200 kg and 1000 kg IBC containers.
Bulk tanker trucks for large-scale industrial use.
Custom packaging options are available upon request.
Storage:
To ensure the quality and stability of Propylene Glycol, follow these storage guidelines:
Store in a cool, dry, and well-ventilated area.
Keep away from direct sunlight, heat, and ignition sources.
Ensure containers are tightly sealed to prevent moisture absorption.
Avoid contact with strong oxidizing agents.
Shelf life: Up to 2 years when stored under recommended conditions.