Propylene Glycol
- CAS Number: 57-55-6
- Chemical Formula: C3H8O2
- MOQ: 1000KG
- Shelf Life: 2 years
- Types: Liquid
- Synonyms：1,2-Dihydroxypropane, Methyl Ethylene Glycol
Product Description
What Is Propylene Glycol?
Propylene Glycol (PG), referred to as 1,2-propanediol, is a colorless, odorless liquid that has a subtle sweetness to it. Because of its exceptional solubility, low toxicity, and hygroscopic qualities, this chemical is employed extensively in a variety of industries.
Propylene Glycol is primarily produced by hydrating propylene oxide with water, yielding high-purity PG and dipropylene glycol as a byproduct. Alternatively, it can be synthesized via glycerol hydrogenation, offering a sustainable, bio-based production method.
Related Parameters:
| Item | Standard |
| Content | ≥99.80% |
| EG | ≤50ppm |
| DEG | ≤50ppm |
| Residue on ignition | ≤2.5mg |
| Chloridate | ≤0.007% |
| Sulphate | ≤0.006% |
| Heavy metals (in Pb) | ≤5ppm |
| Relative density (25 ℃) | 1.0350— 1.0370 |
| Acidity (0. 1N NaOH) | ≤0.05ml |
| Moisture | ≤0. 10% |
| Fe | ≤0. 1ppm |
| Color (Pt-Co) | <10Hazen |
| IBP | 184℃ |
| DP | 189℃ |
Recommended Dosage:
| Applications | Dosage |
| Lotions and Creams | 2%-5% |
| Hair Products | 1％-10％ |
| Deodorants | 5%–15% |
| Oral Medications | 15%–30% |
| Topical Formulations | 10%–25% |
| Antifreeze and Coolants | 30%–60% |
Propylene Glycol Has Wide Range of Uses
Food Industry Humectant: Preserves moisture in processed foods, baked goods, and confections.
Flavor Carrier: Enhances and stabilizes flavors in beverages and syrups.
Cosmetics and Personal Care
Moisturizer: Improves hydration in creams, lotions, and shampoos.
Solvent: Dissolves and stabilizes active ingredients in deodorants, gels, and serums.
Pharmaceuticals
Solvent: Used in oral, topical, and injectable medications.
Stabilizer: Enhances the solubility and bioavailability of active compounds.
Industrial Applications
Antifreeze & Coolants: Prevents freezing and overheating in automotive and HVAC systems.
Hydraulic Fluids: Offers thermal stability and lubrication.
E-Cigarette Liquids
Base Ingredient: Ensures vapor production and flavor retention.
User Asked Question:
Q: How does ethylene glycol vary from propylene glycol?
A: The primary distinction is toxicity. Propylene Glycol is non-toxic and safe for human use, while Ethylene Glycol is toxic and primarily used in industrial applications like antifreeze.
Q: What are the storage conditions for Propylene Glycol?
A: Propylene Glycol should be stored in a cool, dry place in tightly sealed containers to prevent contamination and degradation.
