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苏联 1952 年出版之工厂实验室材料分析(Аналнвматериаловвэаводскнхлабораториах)一书,是积累多年丰富经验写成的。其中钼的测定较一般分析文献所述之法简而且速。茲特译出,供有关分析工作同志参考。方法纲要溶解钢屑於硫酸中,然后加硝酸将钼氧化成钼酸。之后加入氯化亚锡,六价钼即转变为三价。在和钼还原的同时,三价铁也还原成二价,二价铁不能和硫代氰酸盐生成有色化合物,否则就妨碍了比色。
The Soviet Union published in 1952 the factory laboratory material analysis (Аналнвматериаловвэаводскнхлабораториах) a book, is accumulated by many years of experience written. The determination of molybdenum is simpler and faster than the method described in the general literature. Zite translated for reference to the relevant analytical work comrades. Method outline Dissolved steel shavings in sulfuric acid, then add nitric acid to oxidize molybdenum into molybdic acid. After adding stannous chloride, hexavalent molybdenum that is transformed into trivalent. At the same time as molybdenum reduction, ferric iron is also reduced to divalent, ferrous iron and thiocyanate can not generate colored compounds, otherwise it hindered the colorimetric.