phosphorous acid


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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

H3PO3, a crystalline acid formed when phosphorus is oxidized in moist air.
CAS # 13598-36-2
See also: acid
References in periodicals archive ?
The increased concentration of phosphorous acid in electrolyte during electrodeposition raised the P content and refined the grain size of the electrode.
Ni-P alloy deposits were prepared at different plating conditions and the effect of various plating parameters like current density, concentration of phosphorous acid, concentration of phosphoric acid and plating temperature on the P content of the coating as well as the rate of deposition was investigated systematically.
By controlling the current density, phosphorous acid concentration, and temperature, bright and adherent Ni-P coatings containing various concentrations of phosphorous were obtained.
Samples were prepared at a current density of 30 A [dm.sup.-2] 2 at 70 [degrees]C with different concentrations of phosphorous acid (0-20 g/L) while maintaining a high concentration of phosphoric acid in the bath (40 g/L).