Propylene(C3H6)
Specifications
- CAS No.: 115-07-1
- UN No.: 1077
- EINECS No.: 204-062-1
- Molecular Weight: 42.08 g/mol
- Appearance: Colorless
- Melting Point: -185 ℃
- Boiling Point: -47.7℃
- Density: 1.914kg/m³
- Hazard Class (DOT): 2.1 & 8
- Label: flammable gas
High-purity propylene (C₃H₆) gas supplied from China for polymer production, chemical synthesis, and fuel applications.
High-purity propylene (C₃H₆) gas for polypropylene manufacturing, acrylonitrile production, propylene oxide synthesis, and fuel gas blending.
Propylene is a colorless, flammable gas with a faintly sweet odor. As a key olefin, it burns with a bright flame and has an explosion limit of 2.4%–10.3% in air. It is insoluble in water but soluble in ethanol and ether. Propylene serves as a critical feedstock for producing polypropylene, acrylonitrile, propylene oxide, and various other chemicals. It is also used in the production of cumene, isopropanol, and acrylic acid, and as a fuel gas component. Propylene is typically transported as a liquefied compressed gas.
Global Shipping & Export Compliance
Propylene (UN 1077) is classified as a flammable compressed gas and must be handled under strict hazardous materials regulations.
- Sea freight (FCL / LCL) – standard export method
- Air freight – limited availability (regulatory controlled)
Required Export Documents
- Material Safety Data Sheet (MSDS)
- Certificate of Analysis (COA)
- Dangerous Goods Declaration (DGD)
- UN-certified cylinder documentation
- Commercial invoice & packing list
How to Order Propylene Gas from China
- Send technical requirements (purity, cylinder specification, application)
- Receive quotation (EXW / FOB / CIF options)
- Confirm cylinder specification & compliance
- Review COA, MSDS, and certification documents
- Production, filling, and quality inspection
- Hazardous goods shipping arrangement
- Delivery and final inspection at destination
Common Mistakes When Buying Propylene Gas
- Choosing suppliers only based on lowest price
- Ignoring cylinder certification and pressure rating
- Not verifying moisture and impurity levels
- Skipping third-party inspection before shipment
- Overlooking export documentation compliance
Packaging
| Cylinder Capacity | Valve | Weight |
|---|---|---|
| 40L | QF-30A | 15 kgs |
| 926L | BXF-1 | 380 kgs |
Industrial Grade Propylene(C3H6) 99.5%
| Specification | 99.5% |
|---|---|
| Methane | ≤0.1 % |
| Ethane | ≤0.1 % |
| Propane | ≤0.1 % |
| Alkane | ≤1 ppm |
| Ethylene | ≤20 ppm |
| Hexin | ≤2 ppm |
| Methyl Acetylene & Allene | ≤5 ppm |
| Oxygen | ≤5 ppm |
| Carbon Monoxide | ≤2 ppm |
| Carbon Dioxide | ≤5 ppm |
| Butene & Butadiene | ≤5 ppm |
| Sulfur | ≤1 ppm |
| Moisture | ≤10 ppm |
| Methyl Alcohol | ≤10 ppm |
Frequently Asked Questions
