ethylene oxide EO(C2H4O)
Specifications
- CAS No.: 75-07-0
- UN No.: 1040
- EINECS No.: 200-849-9
- Molecular Weight: 44.05 g/mol
- Appearance: Colorless
- Melting Point: 111°C
- Boiling Point: 10.7°C
- Density: 0.882kg/m³
- Hazard Class (DOT): 2.1 & 8
- Label: flammable gas
High-purity ethylene oxide (EO / C₂H₄O) gas supplied from China for chemical synthesis, sterilization, and industrial processing.
High-purity ethylene oxide (EO / C₂H₄O) gas for detergent manufacturing, medical device sterilization, organic synthesis, and specialty chemical production.
Ethylene oxide is a colorless, flammable gas with a faintly sweet odor. As the simplest epoxide, it features a highly strained three-membered ring structure, making it exceptionally reactive and readily participating in various addition reactions. This reactivity, while hazardous, makes it an incredibly versatile intermediate for producing consumer and industrial chemicals, including detergents, thickeners, solvents, plastics, ethylene glycol, ethanolamines, and polyglycol ethers. Ethylene oxide is also widely used as a surface disinfectant for heat-sensitive medical equipment and devices, and is commonly handled and shipped as a refrigerated liquid to control its highly flammable and explosive nature.
Global Shipping & Export Compliance
Ethylene oxide (UN 1040) is classified as a flammable and corrosive compressed gas and must be handled under strict hazardous materials regulations.
- Sea freight (FCL / LCL) – standard export method (refrigerated liquid)
- 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 Ethylene Oxide Gas from China
- Send technical requirements (purity, concentration, 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 Ethylene Oxide 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
- Underestimating safety requirements for highly reactive, flammable, and carcinogenic gas handling
- Not specifying proper concentration for sterilization or synthesis applications
Packaging
| Purity | Cylinder Capacity | Weight | Valve |
| 99.9%（3N） | 8L | 5Kg | QF-2/QF-2C |
| 99.9%（3N） | 40L | 25Kg | QF-2/QF-2C |
| 99.9%（3N） | 100L | 70Kg | QF-10 |
| 99.9%（3N） | 300L | 235Kg | QF-10 |
| 99.9%（3N） | 600L | 300kg | QF-10 |
| 99.9%（3N） | 800L | 600kg | QF-10 |
Industrial Grade ethylene oxide EO (C2H4O)
| Specification | 30%-90% |
|---|---|
| EO | 30%-90% |
| CO2 | 70%-10% |
| EO | %v/v | ≥99.9 | 99.94 | Gas Chromatography Method |
| H2O | m1/m3 | ≤0.01 | 0.0008 | Coulometry |
| Acetaldehyde | m1/m3 | ≤1 | ≤0.003 | Coulometry |
| CO | m1/m3 | ≤0.5 | ≤0.001 | Coulometry |
| CH3COOH | m1/m3 | ≤0.002 | ≤0.002 | Coulometry |
| H | m1/m3 | ≤5.0 | ≤5.0 | Coulometry |
| O | m1/m3 | ≤1.0 | ≤1.0 | Coulometry |
| Chroma/Hazen unit (platinum – cobalt) | m1/m3 | ≤5.0 | ≤5.0 | Coulometry |
Frequently Asked Questions
