Decomposition of oxalic acid with nitric acid |
| |
Authors: | M. Kubota |
| |
Affiliation: | 1. Japan Atomic Energy Research Institute, Tokai-mura Ibaraki-ken, (Japan)
|
| |
Abstract: | Oxalic acid or oxalate is widely used as a precipitant and a detergent in the field of nuclear energy. The present work aimed at developing a method of decomposing oxalic acid with HNO3 in the presence of Mn2+ ion. The use of Mn2+ ion as low as 10?3 mol/l facilitated the complete decomposition of oxalic acid, and the acidity of the resulting solution became as low as 0.1 eq/1 under the optimum conditions. The decomposition of oxalic acid is a first order reaction and proceeds at temperatures above 80°C; the activation energy of the reaction is 18.6 kcal/mol. This decomposition method is applicable to the dissolution of an oxalate precipitate. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|