Catalysis of the arsenic(III)-potassium bromate reaction-I: titrimetric determination of arsenic(III) in the presence of osmium tetroxide.
The range of acid concentration available for the titration of arsenic(III) with bromate is considerably extended by the use of osmium tetroxide as catalyst in preference to the use of hydrochloric acid or hydrochloric acid-potassium bromide media. The acid concentration range over which reaction is stoichiometric has been established by potentiometric titration.
Bhattarai
D R
DR
Chemistry Department, University of Strathclyde, Cathedral Street, Glasgow, C.1. U.K.
Ottaway
J M
JM