Product Overview
Glycerin is a simple polyol compound derived from natural fats and oils or synthetically produced. It is highly hygroscopic, meaning it attracts and retains moisture, making it essential in formulations that require hydration and smooth texture. Glycerin is used across a broad range of industries for its moisturizing, solvent, and sweetening properties.
Chemical and Physical Properties
-
Chemical Formula: C3H8O3
-
Molecular Weight: 92.09 g/mol
-
Appearance: Clear, colorless, viscous liquid
-
Odor: Odorless
-
Taste: Sweet
-
Solubility: Completely miscible with water and alcohol
-
Viscosity: High viscosity
-
Boiling Point: 290°C (decomposes)
-
pH (10% Solution): 5.5 – 7.0
Applications and Functional Benefits
Glycerin is widely used for:
-
Acting as a humectant in skincare and cosmetic products to maintain moisture
-
Serving as a solvent and carrier for flavors, colors, and active ingredients
-
Sweetening agent in food and pharmaceutical formulations
-
Preserving moisture and improving texture in baked goods and confectionery
-
Softening agent in tobacco products
-
Ingredient in medical and personal care products such as cough syrups and toothpaste
Its non-toxic, non-irritating nature makes it safe and versatile for many applications.
Quality Specifications
| Parameter | Specification | Typical Result |
|---|---|---|
| Appearance | Clear, colorless viscous liquid | Complies |
| Purity (Assay) | ≥ 99.5% | 99.8% |
| Water Content | ≤ 0.25% | 0.2% |
| pH (10% Solution) | 5.5 – 7.0 | 6.0 |
| Heavy Metals (Lead) | ≤ 5 ppm | < 1 ppm |
| Specific Gravity | 1.26 – 1.27 | 1.26 |
Sensory Profile
-
Appearance: Clear, colorless liquid
-
Odor: Odorless
-
Taste: Sweet
Packaging and Storage
Glycerin is usually packed in drums, jerry cans, or bulk containers with airtight seals. It should be stored in a cool, dry place away from contaminants and extreme temperatures. Shelf life typically extends up to 3 years under proper storage.
Regulatory Status
Glycerin is approved by FDA, EFSA, JECFA, and other international regulatory agencies. It is Generally Recognized As Safe (GRAS) and widely accepted for use in food, pharmaceutical, and cosmetic products.
Conclusion
Glycerin is a versatile, safe, and effective humectant and solvent that enhances moisture retention, texture, and product stability across diverse industries. Its natural origin and excellent functional properties make it a staple ingredient in modern formulations.
Reviews
There are no reviews yet.