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镍铜在矿石中常相伴产出。为了适应综合找矿、综合评价、综合利用的需要,我们分析了α-呋喃肟测镍、铜试剂测铜的共性与个性,拟订了镍铜连续目视比色测定法。镍铜含量为0.00X—1％,均得良好结果,并与分别测定法结果相符,方法比较准、快、便、省。 1.标准系列配制:取0,1,2.5,5……15,20……35微克镍、铜于一系列50毫升带玻塞的比色管中,加入30％酒石酸钾钠3毫升,5％盐酸羟胺0.5毫升,1％酚钛1滴,滴加20％氢氧化钠至溶液呈红色,滴加3N硫酸至溶液红色消失,加入20％硫代硫酸钠5毫升,每加一种试
Nickel copper is often accompanied by output in the ore. In order to meet the needs of comprehensive prospecting, comprehensive evaluation and comprehensive utilization, we analyzed the commonness and individuality of copper measured by α-furanoxime and copper reagent, and developed a continuous visual colorimetric determination method of nickel-copper. Nickel and copper content of 0.00X-1%, were good results, and with the results of the determination of the respective method is relatively accurate, fast, convenient, provincial. 1. Standard Series Preparation: Take 0,1,2.5,5 ...... 15,20 ... 35 micrograms of nickel, copper in a series of 50 ml glass with a plugged colorimetric tube, adding 30% potassium sodium tartrate 3 ml, 5 % Hydroxylamine hydrochloride 0.5 ml, 1% 1% titanium oxide, 20% sodium hydroxide was added dropwise until the solution was red, 3N sulfuric acid was added dropwise to the solution red disappear, adding 20% sodium thiosulfate 5 ml,