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Ethyne - ( C2H2 )
Ethyne(C2H2) is a colorless , flammable gas with an odor similar to garlic . Can decompose spontaneously if pressure exceeds 15 psig. Shipped and stored in dissolved acetone/DMF .
| Specifications | ||
| Purity , % | 99.6 | 99.95 |
| Oxygen | ≤ 10 ppm | |
| Nitrogen | ≤ 30 ppm | |
| Carbon Dioxide | ≤ 1 ppm | |
| Carbon Monoxide | ≤ 20 ppm | |
| Hydrogen | ≤ 5 ppm | |
| Methane | ≤ 200 ppm | |
| Water | ≤ 100 ppm | |
| Hydrogen Sulfide | ≤ 10 ppm | |
| Phosphine | ≤ 10 ppm | |
| Air | ≤ 900 ppm | |
| Ship | ||
| DOT Shipping Name | Acetylene , Dissolved | |
| DOT Classification | 2.1 | |
| DOT Label | Flammable Gas | |
| UN Number | UN 1001 | |
| CAS No. | 74-86-2 | |
| CGA/BS341/DIN477 | 510/NO.2/NO.3 | |
| Technical Information | ||
| Cylinder State @ 21.1°C | Gas | |
| Flammable Limits In Air | 2.2-85% | |
| Auto Ignition Temperature (°C ) | 305 | |
| Molecular Weight (g/mol) | 26.038 | |
| Specific gravity (air =1) | 0.906 | |
| Critical Temperature ( °C ) | 35.17 | |
| Critical Pressure ( psig ) | 890.208 | |
| Applications | ||
| · In optical spectrometry as an instrumentation gas · As a fuel gas in atomic absorption spectrometry for elemental analysis. | ||