Orthophosphorous-acid
[awr-thuh-fos-fer-uh s, awr-thoh-fos-fawr-uh s, -fohr-] /ˈɔr θəˈfɒs fər əs, ˌɔr θoʊ fɒsˈfɔr əs, -ˈfoʊr-/
noun, Chemistry.
1.
a white to yellowish, crystalline, hygroscopic, water-soluble solid, H 3 PO 3 , used chiefly in the synthesis of phosphites.
/ˌɔːθəʊˈfɒsfərəs/
noun
1.
a white or yellowish hygroscopic crystalline dibasic acid. Formula: H3PO3 Also called phosphorous acid
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