The Chemical Behavior of Low Valence Sulfur Compounds. III. Production of Ammonium Sulfamate by the Oxidation of Ammonium Thiosulfate
- 1 May 1970
- journal article
- Published by Oxford University Press (OUP) in Bulletin of the Chemical Society of Japan
- Vol. 43 (5) , 1365-1372
- https://doi.org/10.1246/bcsj.43.1365
Abstract
The oxidation of ammonium thiosulfate with compressed oxygen in aqueous ammonia solution was examined. It was found that ammonium sulfamate and ammonium sulfate are mainly produced and a small amount of nitrite and imidodisulfonate obtained in the final solution. The most suitable conditions to produce ammonium sulfamate from ammonium thiosulfate industrially are as follows: reaction temperature 100°C, oxygen pressure 50 kg/cm2, concentration of ammonia 16 mol/l, concentration of cupric ion 0.1–0.2 mol/l. The electrolytic oxidation, hydrogen peroxide oxidation and ozone oxidation of ammonium thiosulfate were also examined.This publication has 8 references indexed in Scilit:
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