论文部分内容阅读
氨基磺酸电铸镍中氯根的传统的分析方法是在酸性溶液中加入过量的硝酸银,加入甲苯,以铁铵矾做指示剂,用硫氰酸钾反滴方法,但此方法终点不明,误差大,测不出低含量氯根,且毒害很大。现参照武汉材料保护研究所《常用电镀溶液的分析》吸取氯磺酸电铸镍中测定硼酸用的乾过滤液,当氯根小于1g时,用目视比浊法,氯根大于1g时,用莫尔法,使测定速度和准确性大大提高,具有无毒、快速、滴定终点明显,误差小等,对低含量和高含量的氯根试液都获得了较满意的结果。
Ammonia sulfonic acid electroformed nickel chloride in the traditional analysis of the method is to add excess silver nitrate in acidic solution, add toluene, ammonium ferrite as an indicator, with potassium thiocyanate anti-drip method, but the end of this method is unknown , The error is big, can not measure the low content of chloride, and the poison is very big. Reference to the Wuhan Institute of Materials Protection, “commonly used plating solution analysis” to learn chlorosulfonic acid electroformed nickel in the determination of boric acid with dry filtrate, when the chloride is less than 1g, with the visual turbidity method, chloride greater than 1g, With the Moore method, the speed and accuracy of the measurement are greatly improved. The method has the advantages of non-toxicity, rapidness, obvious titration end point, small error and the like, and obtains relatively satisfactory results for the low-content and the high-content chlorine root test solution.