Accession NumberHMDB01443
Common_NamePhosphite
DescriptionThe phosphite ion (PO3) is a polyatomic ion with a phosphorus central atom. Its geometry is tetrahedral. Many phosphite salts, such as ammonium phosphite, are highly water soluble. Also organophosphorus compounds with the fromula P(OR)3.; The conjugate acid of the phosphite anion is phosphorous acid (H3PO3). Other names for this acid are orthophosphorous acid and dihydroxyphosphine oxide. H3PO3 is also sometimes referred to as phosphorus trihydroxide and trihydroxyphosphine, though these names are misleading. Phosphorous acid is a diprotic acid, since the hydrogen bonded directly to the central phosphorus atom is not ionizable. Thus, a more logical chemical formula for phosphorous acid is HPO(OH)2, since three hydroxy groups are not actually present on the acid. The acid can be synthesized hy treatment of a carboxylic acid, alcohol, or most practically water, with phosphorus tribromide or more commonly phosphorus trichloride.
Chemical_IUPAC_Nametrioxidophosphane
Chemical FormulaO3P
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