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Ammonia - ( NH3 )
Ammonia is colorless, pungent , non-flammable gas at atmospheric pressure and temperature. It is irritating to the mucous membranes and toxic in high concentrations. Ammonia is shipped as a liquefied gas under its own vapor pressure.
| Specifications | |||
| Purity , % | 99.999 | 99.9995 | 99.99999 |
| Oxygen | ≤1.0 ppmv | ≤0.5 ppmv | ≤10 ppbv |
| Nitrogen | ≤5 ppmv | ≤1.0 ppmv | ≤200 ppbv |
| Carbon Dioxide | ≤1.0 ppmv | ≤0.4 ppmv | ≤100 ppbv |
| Carbon Monoxide | ≤2 ppmv | ≤0.5 ppmv | ≤50 ppbv |
| Hydrogen | ≤100 ppbv | ||
| Methane | ≤2 ppmv | ≤0.1 ppmv | ≤50 ppbv |
| Water | ≤5 ppmv | ≤2.0 ppmv | ≤200 ppbv |
| Ship | |||
| DOT Shipping Name | Ammonia , Anhydrous | ||
| DOT Classification | 2.2 | ||
| DOT Label | Non-flammable Gas | ||
| UN Number | UN1005 | ||
| CAS No. | 7664-41-7 | ||
| CGA/DISS/JIS/BS341/DIN477 | 660/720/W22-14L/NO.10/NO.6 | ||
| Shipped as | Liquefied Gas | ||
| Technical Information | |||
| Cylinder State @ 21.1°C | Liquid | ||
| Flammable Limits In Air | 15–27% | ||
| Auto Ignition Temperature (°C ) | 850 | ||
| Molecular Weight (g/mol) | 17.03 | ||
| Specific gravity (air =1) | 0.593 | ||
| Critical Temperature ( °C ) | 36.17 | ||
| Critical Pressure ( psig ) | 890.208 | ||
| Applications | |||
|
· As a component in calibration gas mixtures for environmental monitoring systems · As a component in gas mixtures for industrial hygiene · In various chemical reactions · In semiconductor manufacturing and blue print production processes. | |||