摘要
研究了在盐酸—硫酸介质中,重铬酸钾将溴离子氧化成元素溴,元素溴与品红—硫酸溶液反应的最佳反应条件。有机相的最佳吸收波长为570nm,最佳反应温度为30℃。实验表明,该方法线性关系良好,精密度和准确度较高,可用于测定海水及卤水中的溴。
The optimum reaction conditions for oxidation of bromide ion to bromine element in HCI-H2SO4 medium by potas- sium dichromate and reaction of bromine and fuchsin-sulfurie acid solution were studied. The maximum absorption wavelength of the orangic solution was 570 nm and the optimum reaction temperature was 30 ℃. The experiment shows that the method fea- tures a desirable linearity and higher precision and accuracy and could be applied to determine bromine in seawater and brine.
出处
《化工矿物与加工》
CAS
北大核心
2014年第7期17-19,共3页
Industrial Minerals & Processing
关键词
品红—硫酸溶液
分光光度法
溴
fuchsin-sulfuric acid solution
speetrophotometry
bromine
