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Ammonia as Nitrogen. ALS Environmental may or may not test for Ammonia as Nitrogen (CAS # 7664-41-7). Information is subject to change; please contact us for the latest available analytes for which we test.
Some chemical/physical properties of ammonia are: 1  At room temperature, ammonia is a colorless, highly irritating gas with a pungent, suffocating odor. 2  In pure form, it is known as anhydrous ammonia and is hygroscopic (readily absorbs moisture).3  Ammonia has alkaline properties and is corrosive. Ammonia gas dissolves easily in water to form ammonium hydroxide, a caustic solution and weak base. 2  Ammonia gas is easily compressed and forms a clear liquid under pressure. 3  Ammonia is usually shipped as a compressed liquid in steel containers.