摘要
本文用硫酸联氨还原、硫酸铈铵滴定测定钼酸铅试样中的钼，详细探讨了还原钼时的酸度和硫酸联氨用量、滴定钼的酸度、测定钼量、外加离子等试验条件。用选择条件测量约含１０ｍｇ钼酸铅试样，误差小于０．５％，相对标准偏差为０．２％。方法可用于测定用钼酸铅沉淀法初分离出来的、含有某些杂质的钼酸铅中的钼，也可用于钼溶液浓度的标定。图５，表１，参３。
he molybenum in lead molydate was detrmined by reduction with diamine sulfate and titration with Cerium(Ⅳ).The experimental conditions are discussed,including the hydrochloric acid concentration at reduction and titration of molybdenum,thequantity of diamine sulfate and molybdenum as well as the foreign substance. The methodhas been applied to the sample determination of lead molybdate containg 10mg Mo andimpunties,with relative errors less than ±0.5 per cent.Under optimum conditiotns,and inthe hand of an experiened operato,the refative standard deviation of the methcd at the 10mg Mo level is ± 0.2 per cent. 5flgs.,ltab.,3refs.
出处
《湘潭矿业学院学报》
1994年第4期44-47,共4页
Journal of Xiangtan Mining Institute
关键词
钼
氧化还原滴定法
硫酸联氨
硫酸铈铵
molybdenum
redox titiation
diamine sulfate
ammonium ceric sulfate
