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:
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Food Industry:
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Used as a food additive (E1520) for moisture retention, texture improvement, and as a solvent for flavors and colors.
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Found in baked goods, dairy products, and beverages.
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Pharmaceuticals:
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Acts as a solvent, excipient, and stabilizer in oral, topical, and injectable medications.
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Used in cough syrups, ointments, and lotions.
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Cosmetics and Personal Care:
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Functions as a humectant, emollient, and solvent in skincare, haircare, and hygiene products.
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Found in moisturizers, deodorants, and toothpaste.
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Industrial Applications:
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Used as an antifreeze and coolant in HVAC systems and automotive applications.
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Acts as a solvent in paints, coatings, and inks.
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E-Liquids:
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A key component in e-cigarette liquids as a carrier for nicotine and flavors.
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Animal Feed:
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Used as a preservative and moisture stabilizer in animal feed.
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Features:
Propylene Glycol offers several key features, including:
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Low Toxicity: Safe for use in food, pharmaceuticals, and cosmetics.
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High Solubility: Miscible with water and many organic solvents.
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Humectant Properties: Retains moisture and prevents drying.
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Stability: Chemically stable under normal conditions.
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Versatility: Suitable for a wide range of applications across industries.
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Eco-Friendly: Biodegradable and environmentally friendly.
Packaging:
Propylene Glycol is available in the following packaging options:
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25 kg and 50 kg drums (plastic or metal).
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200 kg and 1000 kg IBC containers.
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Bulk tanker trucks for large-scale industrial use.
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Custom packaging options are available upon request.
Storage:
To ensure the quality and stability of Propylene Glycol, follow these storage guidelines:
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Store in a cool, dry, and well-ventilated area.
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Keep away from direct sunlight, heat, and ignition sources.
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Ensure containers are tightly sealed to prevent moisture absorption.
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Avoid contact with strong oxidizing agents.
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Shelf life: Up to 2 years when stored under recommended conditions.