CheckVegan

Is Nitrous Acid vegetarian?

Nitrous Acid

Vegetarian Vegetarian
Vegan Vegan

Nitrous Acid is a weak, monoprotic acid known only in solution, in the gas phase, and as nitrite salts. It is used industrially to make diazonium salts from amines, which serve as reagents in azo coupling reactions to produce azo dyes.

INCI name Nitrous Acid
CAS number 7782-77-6
EC number 231-963-7
CosIng ID 98470
Last reviewed 9 July 2026

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