PRODUCT DATA SHEET (TDS)
1. Product Identification
| Item | Details |
| Product Name | 1,2-Propanediol (Propylene Glycol, PG) |
| Chemical Formula | C₃H₈O₂ |
| Molecular Weight | 76.09 g/mol |
| CAS No. | 57-55-6 |
| Appearance | Colorless, viscous and transparent liquid, free of visible impurities |
2. Typical Specifications
| Analysis Item | Unit | Specification | Typical Test Result |
| 1,2-Propanediol Purity | % (w/w) | ≥ 99.80 | 99.955 |
| Moisture | % (w/w) | ≤ 0.10 | 0.056 |
| Acidity (as acetic acid) | % (w/w) | ≤ 0.010 | 0.002 |
| Density (20℃) | g/cm³ | 1.035 ~ 1.038 | 1.035 |
| Color (Pt-Co/Hazen) | Hazen | ≤ 5 | 5 |
3. Physical & Chemical Properties
| Item | Details |
| Melting Point | ~ -59 ℃ |
| Boiling Point | ~ 187 ℃ |
| Solubility | Miscible with water, alcohols, ketones, and most organic solvents |
| Density | ~ 1.036 g/cm³ (20 ℃) |
| Stability | Stable under normal conditions; hygroscopic |
4. Applications
- Primary raw material for unsaturated polyester resins, alkyd resins, and coatings
- Used in the production of cosmetics, food additives, pharmaceuticals, and humectants
- Applied in the manufacturing of antifreeze agents, plasticizers, and hydraulic fluids
5. Packaging
- Packaging Type: 220L steel drums, ISO tanks, or bulk liquid transport via tank truck/rail
- Handling Notes: Keep containers sealed; store in a dry, well-ventilated area away from heat sources
6. Storage
- Store in a cool, dry, and well-ventilated warehouse
- Protect from direct sunlight, moisture, and incompatible materials (strong acids, strong bases, oxidizers)
- Shelf Life: 24 months under proper storage conditions
7. Safety & Handling
- Hazard Classification: Mild irritant to skin, eyes, and respiratory tract; non-hazardous for transport
- Recommended PPE: Safety goggles, chemical-resistant gloves, and protective clothing
- Use in well-ventilated areas to avoid vapor accumulation
- For complete safety instructions, refer to the product SDS (Safety Data Sheet)
8. Test Methods
- Purity: Gas Chromatography (GC)
- Moisture: Karl Fischer Titration
- Acidity: Titration with standard alkali solution
- Density: GB/T 4472-2011
- Color (Pt-Co): GB 3143-1982
