【摘要】 研究了在硫酸介质中,在硫酸钠的催化作用下,溴酸根离子氧化酸性品红的最佳反应条件。退色溶液的最大吸收波长为575nm,表观摩尔吸光系数为1.32×105L·mol-1·cm-1,溴酸根离子在3.0～18μg/25mL范围内符合比尔定律。该法用于化学试剂中微量溴酸根离子的测定,获得了满意的结果。更多还原

【Abstract】 The optimum reaction conditions for oxidation of acid fuchsin in a sulfuric acid medium by BrO^-₃ with sodium sulfate as the catalyst were studied.The maximum absorption wavelength of the decoloring solution was 575nm with a molar absorptivity of 1.32×10⁵ L·mol^-1·cm^-1,and the linear range was 3.0～18μg/25mL of BrO^-₃.The method was applied to the determination of micro amount of BrO^-₃ in chemical reagents with satisfactory results.更多还原