also: ありんさん
noun, noun which may take the genitive case particle 'no'
phosphonic acid; phosphorous acid
Chemical term for H₃PO₃. In modern IUPAC nomenclature, 'phosphonic acid' is preferred, but 'phosphorous acid' is still widely used in older literature and some contexts. Compare with ホスホン酸, which may refer to organophosphonic acids.
See also: ホスホン酸
亜リン酸は還元剤として使われることがある。
Phosphonic acid is sometimes used as a reducing agent.
この反応では亜リン酸エステルが生
In this reaction, a phosphonic acid ester is produced.
Compound of 亜 (a, 'sub-') + リン (rin, 'phosphorus') + 酸 (san, 'acid'), reflecting its lower oxidation state compared to phosphoric acid.