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Allene - ( C3H4 )
Allene(C3H4) is a clear colorless gas with a characteristic diolefinic odor .It is shipped as a liquified gas under its own vapor pressure.
| Specifications | |
| Purity , % | 98.50% |
| 1-Propyne | ≤ 1% |
| Propylene | ≤ 1.5% |
| Ship | |
| DOT Shipping Name | Allene |
| DOT Classification | 2.1 |
| DOT Label | Flammable Gas |
| UN Number | 2200 |
| CAS No. | 463-49-0 |
| CGA//BS41/DIN477 | 510/NO.4/NO.1 |
| Shipped as | Liquefied Gas |
| Technical Information | |
| Cylinder State @ 21.1°C | Liquid |
| Flammable Limits In Air | 2.1 - ' |
| Auto Ignition Temperature (°C ) | |
| Molecular Weight (g/mol) | 40.07 |
| Specific gravity (air =1) | 1.383 |
| Critical Temperature ( °C ) | 120 |
| Critical Pressure ( psig ) | 778.66 |
| Applications | |
| Allene is the simplest member of the 1,2-diene class of compounds. Allenes are not as stable as conjugated dienes or isolated dienes. Allene is slightly more strained than the isomeric methylactylene. Allene is chiefly used in organic synthesis. | |