High Purity Ammonia（NH3）Specialty Gases
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Contact usSpecifications
| 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 |
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 |
Description
Ammonia is an inorganic chemical compound of nitrogen and hydrogen with the formula NH3. A stable binary hydride and the simplest pnictogen hydride, ammonia is a colourless gas with a distinctive pungent smell. Biologically, it is a common nitrogenous waste, and it contributes significantly to the nutritional needs of terrestrial organisms by serving as a precursor to fertilisers.Around 70% of ammonia produced industrially is used to make fertilisers in various forms and composition, such as urea and diammonium phosphate. Ammonia in pure form is also applied directly into the soil.Ammonia, either directly or indirectly, is also a building block for the synthesis of many chemicals.Ammonia occurs in nature and has been detected in the interstellar medium. In many countries it is classified as an extremely hazardous substance.Ammonia is produced biologically in a process called nitrogen fixation, but even more is generated industrially by the Haber process. The process helped revolutionize agriculture by providing cheap fertilizers.Industrial ammonia is transported in tank cars or cylinders.
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 .
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.
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