Nitrate
Nitrate was a salt of nitric acid. It was composed of one nitrogen and three oxygen atoms with the chemical formula NO3−. 

Soil samples of Melona IV, taken after the destruction by the Crystalline Entity, contained normal amounts of lanthanide and nitrates, a slightly elevated level of hydrocarbons and bitrious filaments in trace
amounts. ()

The region of the planet Ledos that was inhabited by the Ventu contained botanical specimens that had high level of serum nitrates. ()

See also 
 Brizeen nitrate
 Potassium nitrate

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Chemical compounds