摘要
泵轴中镍的测定采用在乙酸铵缓冲溶液中,用酒石酸钾钠作络合剂,以硫代硫酸钠掩蔽铜,在pH值为6.0～6.4时,镍与丁二酮肟生成丁二酮肟镍沉淀,与铁、钴、铜、锰、铬、钼、钨、钒等元素分离,丁二酮肟镍沉淀经140±5℃烘干并称至恒重.
The determination of nickel in pump shaft applied in ammonium aeetete, with potassium soditum tartrate as the complexing agent, and with sodium thiosulfuric acid masking copper. When pH is 6.0 - 6.4, nickel and diacetyl dioxime reacted,formed the sedimentation of diaactyl dioxime nickel, and seperated from iron, cobalt, copper, etc. The sedimentation was desiccatedl at 140 ± 5℃ and messured to the constant weight.
出处
《化学工程师》
CAS
2005年第9期44-44,47,共2页
Chemical Engineer
关键词
镍
T二酮肟
重量法
nickel
diacetyl dioxime
gravimetric method
