Propylene Glycol 99.9% (CAS 57-55-6) is a clear, odorless, slightly sweet viscous liquid. It is miscible with water, ethanol and many organic solvents. It has excellent humectant, solvent and antifreeze functions, available in USP grade and industrial grade for different application scenarios. TNJ Chemical is the leading manufacturer and exporter since 2001. We guarantee high quality, competitive price, stable supply, fast delivery and tech support etc. To inquire more, please contact sales@tnjchem.com
Product Information
Chemical Name: Propylene Glycol
Synonym: PG, 1,2-Propanediol
CAS No.: 57-55-6Molecular Formula: C₃H₈O₂
Molecular Weight: 76.09
EINECS: 200-337-1
HS Code: 29053200
Chemphysical Properties
Appearance: Colorless transparent viscous liquid
Density: 1.035–1.040 g/cm³ (25℃)Boiling point: 187 ℃
Flash point: 104 ℃
Solubility: Miscible with water, ethanol, glycerin and acetone
Character: Low volatility, stable, hygroscopic, non-corrosive
| Item | USP Grade | Industrial Grade |
|---|---|---|
| Assay | 99.5–100.5 % | 99.0–99.9 % |
| Water | ≤ 0.2 % | ≤ 0.3 % |
| Refractive Index | 1.431–1.435 | 1.429–1.436 |
| Color (APHA) | ≤ 10 | ≤ 20 |
| Heavy Metals (as Pb) | ≤ 5 ppm | - |
| Acidity / Alkalinity | Complies with USP | Complies |
Use & Application
USP grade propylene glycol is widely used in pharmaceutical excipients, cosmetics, food additives, oral care and flavor carrier. Industrial grade PG is used as antifreeze, solvent for coatings, printing ink, plasticizer, de-icing agent and auxiliary agent for synthetic resins.
Packing & Storage
Packed in 215kg iron drum or IBC tank.
Store in cool, dry and ventilated warehouse.
Keep sealed, away from strong oxidizing agents and direct sunlight.
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