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Is ammonia heavier than air

Updated: 9/14/2023
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14y ago

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Ammonia (NH3), as used commercially, is often called anhydrous ammonia. This term emphasizes the absence of water in the material.

Anhydrous ammonia gas is lighter than air and will rise, so that generally it dissipates and does not settle in low-lying areas. However, in the presence of moisture (such as high relative humidity), the liquefied anhydrous ammonia gas forms vapors that are heavier than air. These vapors may spread along the ground or into low-lying areas with poor airflow where people may become exposed.

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14y ago
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Q: Is ammonia heavier than air
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