Spectrophotometric determination of titanium in aluminum and its alloys with diantipyrylmethane
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概要
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Diantipyrylmethane has been found as a selective reagent for forming a yellow complex with titanium in hydrochloric acid. Slow developing of color appeared, but fully developed color solution was stable for a long period. The color developing depended on temperature, addition amount of the reagent, and concentration of hydrochloric acid. The present method would be applied to the determination of titanium in various aluminum alloys with almost no effects of co-existent elements. The recommended procedure was as follows.The aluminum alloy was dissolved in dil. hydrochloric acid and insoluble matter was filtered off. Then, the solution was diluted to a known volume. An aliquot of the solution was transferred to a volumetric flask, into which ascorbic acid was added and allowed to settle. Then, diantipyrylmethane solution was added to it and it was allowed to stand for 1hr. Optical density of the solution was measured at 390mμ by comparing it with a control solution prepared in the same way, but containing no diantipyrylmethane, and titanium was determined by the calibration curve.
- 一般社団法人 軽金属学会の論文
一般社団法人 軽金属学会 | 論文
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