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间接络合滴定法。对钼酸铵(钠)进行试验,其结果证明,该法准确度方面接近于重量法,而较(1)重量法;(1)将六价钼还原为五价钼后,再用EDTA反滴定的方法;(3)先经过分离后,再间接用EDTA测定的方法均要快速得多,准确度完全合乎工业分析要求,方法的操作如下: 准确称取钼酸钱0.5000克于烧杯中,加入80 本法在国内外已发表的资料基础上,选择了适当的沈淀剂和掩蔽剂,改用不经还原和分离的
Indirect complexometric titration. Ammonium molybdate (sodium) test, the results show that the accuracy of the method is close to the gravimetric method, compared with (1) gravimetric method; (1) after the reduction of hexavalent molybdenum pentavalent molybdenum, then EDTA Titration method; (3) after the separation, and then indirectly measured by EDTA methods are much faster, accuracy in full compliance with industrial analysis requirements, the method of operation is as follows: accurately weighed 0.5000 grams of molybdenum money in a beaker, Add 80 This method has been published at home and abroad based on the information, select the appropriate precipitant and masking agent, to use without reduction and separation