One of the mysteries of the English language finally explained.
An unstable, weak acid, existing only in solution and in the gas phase, made by the action of acids on nitrites.
Chemical formula: HNO₂
- ‘Some substances are capable of acting either as reductants or as oxidants, e.g., hydrogen peroxide and nitrous acid.’
- ‘There are various other types of equally forgotten Victorian batteries: some best forgotten as they gave off toxic nitrous acid fumes and could only be used in well-ventilated areas.’
- ‘Nitrite ions also present a more acute toxicity toward the photosynthetic apparatus especially in their acid form, nitrous acid, which can diffuse freely across membranes.’
- ‘Products must undergo rigorous tests, which examine chemical residue, veterinary residue, fish residue, heavy metal, hormone, nitrous acid, additives and microorganism.’
- ‘Secondary amines react with nitrous acid to give nitroso compounds, pale yellow oils that are insoluble in water.’
nitrous acid/ˈnītrəs ˈasəd/
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