THE RATE OF REDUCTION OF SELENIUM(VI) TO SELENIUM(IV) IN HYDROCHLORIC-ACID
THE RATE OF REDUCTION OF SELENIUM(VI) TO SELENIUM(IV) IN HYDROCHLORIC-ACID
复制标题
DOI：
10.1016/0039-9140(91)80079-f
复制
发表时间：
1991-04-01
期刊：
影响因子：
6.1
通讯作者：
OLIN, A
中科院分区：
文献类型：
--
作者：
PETTERSSON, J;OLIN, A
研究了在50~95℃温度范围内，在4、5和6M的盐酸中，硒(VI)还原为Se(IV)的反应。反应速度由连续流动氢化物发生原子吸收光谱分析测定生成的Se(IV)确定。该反应最显著的特点是随着氢离子浓度和温度的升高，反应速率显著增加。在恒定的酸度(盐酸和高氯酸的混合物)下，该速率最初随氯离子浓度的增加而增加，但在高氯离子浓度下趋于几乎恒定值。
The reduction of selenium(VI) to selenium(IV) in 4, 5 and 6M hydrochloric acid was studied at temperatures between 50 and 95-degrees. The reaction rate was determined by measurement of the selenium(IV) formed, by continuous-flow hydride-generation atomic-absorption spectrometry. The most notable feature of the reaction is the strong increase in rate with increasing hydrogen-ion concentration and temperature. The rate increases initially with chloride concentration at constant acidity (mixtures of hydrochloric and perchloric acid) but levels off to an almost constant value at high chloride concentrations.