螢光X線法によるフェロマンガンならびにフェロクロム中のマンガンおよびクロムの定量

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タイトル別名
  • Determination of Manganese and Chromium in Ferromanganese and Ferrochromium by X-Ray Fluorescent Spectroscopy
  • ケイコウ Xセンホウ ニ ヨル フェロ マンガン ナラビニ フェロ クロム チュウ ノ マンガン オヨビ クロム ノ テイリョウ

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抄録

Applications of calibration curve method and and calculation method by Hirokawa’s equation were tried for the determination of alloying elements in ferromanganese or ferrochromium. Non-destructive method in routine analysis was unsuccessful owing to the segregation and porosity generally existing in ferromanganese and ferrochromium. Moreover, they are poor in machinability. Therefore the authers examined the homogeneous samples by the following methods: (1) Powder; graphite powder ten times of the sample (Wg⁄Ws) was added to the nitric acid solution of ferromanganese and hydrochloric acid solution of ferrochromium, and then the mixture was evaporated and dried. (2) Solution; ferromanganese was dissolved in nitric acid, and ferrochromium was fused with sodium peroxide. By the powder method (1), the linear calibraton curves for ferromanganese and for ferrochromium up to about 50 per cent were obtained. By the solution method (2), the linear calibration curves for manganese from 60 to 90 per cent and for chromium from 50 to 70 per cent were obtained. The standard deviation for ferromanganese and ferrochromium were 3.45 and 2.67 by the method (1), and 1.16 and 0.93 by the method (2).

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 26 (7), 443-446, 1962

    公益社団法人 日本金属学会

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