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硬质合金中钛含量可达23%左右.长期以来在一些生产单位仍采用一般的光度法,采取称样少,稀释几次的方法进行测定.这样测定结果的准确度较差.因此,本文在过氧化氢比色法测定钛的基础上,应用差示分光光度法研究了测定高含量钛的适宜条件,制定了用差示分光光度法测定硬质合金中高含量钛的方法.试验表明,在酸度为1.5N～3.5N的硫酸、磷酸介质中过氧化氢与钛(Ⅳ)生成很稳定的络合物,至少能放置24
Carbide titanium content of up to about 23% .For a long time in some production units are still using the general photometry, take less said, diluted several times to determine the method, so the determination of the accuracy of the poor.Therefore, this article Based on the determination of titanium by hydrogen peroxide colorimetric method, the suitable conditions for the determination of high content of titanium were studied by differential spectrophotometry and the method of differential spectrophotometry for the determination of high content of titanium in the cemented carbide was developed. In the acidity of 1.5N ~ 3.5N of sulfuric acid, phosphoric acid medium and titanium (IV) hydrogen peroxide to form a very stable complex, can be placed at least 24