Acetylene(C2H2)
Specifications
- CAS No.: 74-86-2
- UN No.: 1001
- EINECS No.: 200-816-9
- Molecular Weight: 26.04 g/mol
- Appearance: Colorless
- Melting Point: -81.8 ℃
- Boiling Point: -83.4 ℃
- Density: 0.62kg/m³
- Hazard Class (DOT): 2.1 & 8
- Label: Flammable Gas
High-purity acetylene (C₂H₂) gas supplied from China for welding, cutting, and chemical synthesis.
High-purity acetylene (C₂H₂) gas for oxy-fuel welding, metal cutting, organic synthesis, and specialty chemical production.
Acetylene is a colorless, highly flammable gas with a characteristic garlic-like odor in its industrial grade due to impurities such as hydrogen sulfide and phosphine. As the simplest alkyne, it is unstable and can decompose explosively under pressure, requiring specialized handling and packaging. Acetylene serves as a primary fuel gas for oxy-acetylene welding and cutting, offering the highest flame temperature of any commercial fuel gas. It is also a critical raw material for producing various organic chemicals, including acetaldehyde, acetic acid, and synthetic rubber, typically transported in specialized cylinders containing a porous mass and solvent for safe storage.
Global Shipping & Export Compliance
Acetylene (UN 1001) 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 Acetylene Gas from China
- Send technical requirements (purity, pressure, 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 Acetylene Gas
- Choosing suppliers only based on lowest price
- Ignoring cylinder certification and pressure rating
- Not verifying purity and impurity levels
- Skipping third-party inspection before shipment
- Overlooking export documentation compliance
- Underestimating safety requirements for unstable gas handling
Packaging
| Cylinder Capacity | Valve | Weight |
|---|---|---|
| 40L | QF-15A | 5 kgs |
Industrial Grade Acetylene (C2H2) 98%
| Phosphorus | < 0.08 % |
| Sulphur | < 0.1 % |
Industrial Grade Acetylene (C2H2) 99.5%
| Phosphorus | 10% silver nitrate test paper does not change color |
| Sulphur | 10% silver nitrate test paper does not change color |
| Oxygen | < 500 ppm |
| Nitrogen | < 500 ppm |
Frequently Asked Questions
