Spectrophotometric study of the reaction between hydrazine and p.dimethylaminobenzaldehyde

被引：26

作者：

Gojon, C

Dureault, B

机构：

来源：

JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY | 1996年 / 33卷 / 09期

关键词：

hydrazine; p.dimethylaminobenzaldehyde; Purex process; spectrophotometric analysis; nitric acid; equilibrium constant;

D O I：

10.3327/jnst.33.731

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

In order to realize an optical fibre chemical sensor for hydrazine in the Purer process, the reaction between hydrazine and p.dimethylaminobenzaldehyde (p.DMAB) in nitric acid medium was studied by spectrophotometry and H-1.NMR. The effect of temperature and acidity were determined. The equilibrium constant is of 7,800l/mol at 15 degrees C and decreases to 600 at 55 degrees C. The reaction is fully reversible. In order to keep p.DMAB out of damage, the acidity working range has to be within 0.1 to 1.0 M in nitric acid medium. This reaction is suitable for the application of optical fibre chemical sensors because direct reversibility or regeneration by temperature or acidity may be possible.

引用

页码：731 / 735

页数：5

共 15 条

[1] FIBEROPTIC CHEMICAL SENSORS [J].