Canadian Water Quality Guidelines for the Protection of Aquatic Life - Nitrate Ion
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چکیده
Canadian Council of Ministers of the Environment, 2012 he nitrate ion (NO3) (CAS No. 14797-55-8, atomic mass 62.0049 g·mol) is the most oxidized form of nitrogen (N) present in the environment with an oxidation state of +5 (NRC 1978). It is the conjugate base of nitric acid (HNO3), a strong acid which is completely dissociated in solution (NRC 1978). The nitrate salts of all common metals (e.g. NaNO3, KNO3, Ca(NO3)2, AgNO3) are highly soluble in water, while the resulting free nitrate ion is chemically unreactive as it has little tendency to form coordination complexes with other metal ions in solution (NRC 1978).
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