Method for preparation of alkali metal selenates

Details Method for preparation of alkali metal selenates Method for preparation of alkali metal selenates

1984-10-03

1985-08-20

Straub, Gary P.

Chemistry of inorganic compounds

Selenium or tellurium or compound thereof

423592, C01B 1900

Patent

active

045363838

ABSTRACT:
A method for the preparation of alkali metal selenates through oxidation of powdered selenium with hydrogen peroxide and neutralization of the formed selenic acid with alkali metal hydroxide or alkali metal carbonate, wherein the selenium oxide in the first step is brought to reaction at the surface of a warmed portion of hydrogen peroxide and subsequently in a second step the resulting acid solution is partially neutralized and the remaining selenite is further converted with hydrogen peroxide to the selenate.

REFERENCES:
Gmelins Handbuch der Anorganischen Chemie, Bd. Selen B, (1949), p. 79.
B Malinak, Collection Czechoslov. Chem. Commun., vol. 21, 1956, p. 1073.

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