镍电解阳极液中镍钴的同时测定  

Analysis of nickel and cobalt in nickel electrolyte by EDTA titrimetry and colorimetry

作　　者：王玉棉[1] 赵燕春[1] 侯新刚[1] 王胜[1] 

机构地区：[1]兰州理工大学甘肃省有色金属新材料国家重点实验室,甘肃兰州730050

出　　处：《应用化工》2007年第11期1143-1144,1156,共3页Applied Chemical Industry

摘　　要：以EDTA为滴定剂,紫脲酸铵为指示剂,NH4F、酒石酸钾钠、Na2S2O3为掩蔽剂,在氨性介质中测定镍的浓度;在pH值为8.0的氨-氯化铵缓冲液中,采用滴定比色法测得钴的浓度。测得的数据与AAS法和模拟试样进行比较,结果理想。Using EDTA as titratant, murexide as indicator, sodium tartrate ammonium fluoride and sodium thiosulfate as masking agent, nickle concentration was determined in ammonic medium. And cobalt was analysed in ammonium-ammonium chloride （ pH = 8 ） by using m-Chloro-azo-antipyrine （MCAA） colorimetry. The analysis method was compared with AAS and simulated sample analysis with satisfactory resalts.

关 键 词：镍 钴 络合滴定法 比色法 

分 类 号：TF03[冶金工程—冶金物理化学]