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Related to phosphorous acid: hypophosphorous acid
, metaphosphoric acid
phos·phor·ous ac·id (fos-fōr'us as'id),
H3PO3; its salts are phosphites.
phosphorous acid /phos·pho·rous ac·id/ (fos-for´us) H3PO3; its salts are the phosphites.
, a crystalline acid formed when phosphorus is oxidized in moist air.