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nitrous acid

   Also found in: Dictionary/thesaurus, Acronyms, Encyclopedia, Wikipedia 0.01 sec.
nitrous acid /ni·trous ac·id/ (ni´trus) a weak acid, HNO2, existing only in aqueous solution.
nitrous acid
n.
A weak inorganic acid existing only in solution or in the form of its salts.

nitrous acid (HNO2),
a weak acid and clinical laboratory reagent formed by the action of strong acids on inorganic nitrites. An aqueous solution of nitrous acid gradually decomposes into nitric oxide and nitric acid.

nitrous acid,
HNO2, a standard chemical reagent used in biologic and clinical laboratories.


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The nitrous acid from the nitrite combines with the hemoglobin in the blood of the meat, fixing its red color so that the meat does not turn the tired brown or gray natural to cured meat.
Mixtures of nitric and nitrous acids in organic solvents and mixtures of nitrous acid in aqueous sulfuric acid can also oxidize methyl ketone.
In the acidic stomach, the nitrite is rapidly converted to nitrous acid and then to nitric oxide and nitrosating species, which can react with amines and amides to form N-nitroso compounds (NOC), the potential causative agents in the etiology of specific cancers, adverse reproductive outcomes, and diabetes.
 
 
 
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