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Ethylene - ( C2H4 )
Ethylene is a colorless, flammable gas with a faint odor.
| Specifications | ||||
| Purity , % | 99.5 | 99.99 | 99.995 | 99.999 |
| Oxygen | ≤25 ppmv | ≤2 ppmv | ≤2 ppmv | ≤2 ppmv |
| Nitrogen | ≤100 ppmv | ≤5 ppmv | ≤5 ppmv | ≤2 ppmv |
| Carbon Dioxide | ≤15 ppmv | ≤5 ppmv | ≤5 ppmv | ≤2 ppmv |
| Carbon Monoxide | ≤5 ppmv | ≤2 ppmv | ≤2 ppmv | ≤2 ppmv |
| Acetylene | ≤10 ppmv | ≤4 ppmv | ≤4 ppmv | ≤2 ppmv |
| Other Hydrocarbons | ≤4000 ppmv | ≤80 ppmv | ≤50 ppmv | ≤8 ppmv |
| Water | ≤5 ppmv | ≤5 ppmv | ≤5 ppmv | ≤2 ppmv |
| Ship | ||||
| DOT Shipping Name | Ethylene , Compressed | |||
| DOT Classification | 2.1 | |||
| DOT Label | Flammable Gas | |||
| UN Number | UN 1962 | |||
| CAS No. | 74-85-1 | |||
| CGA/JIS/BS341/DIN477 | 350/W22-14L/NO.4/NO.1 | |||
| Shipped as | Compressed Gas | |||
| Technical Information | ||||
| Cylinder State @ 21.1°C | Gas | |||
| Flammable Limits In Air | 2.7-36% | |||
| Auto Ignition Temperature (°C ) | 450 | |||
| Molecular Weight (g/mol) | 28.054 | |||
| Specific gravity (air =1) | 0.969 | |||
| Critical Temperature ( °C ) | 9.21 | |||
| Critical Pressure ( psig ) | 715.13 | |||
| Applications | ||||
| · In polymerization processes · In manufacturing of other chemical intermediates · To ripen various fruits · In the manufacturing of calibration mixtures. | ||||