金属クロム中の酸素の定量

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タイトル別名
  • Determination of Oxygen in Chromium Metal
  • キンゾク クロム チュウ ノ サンソ ノ テイリョウ

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抄録

The investigation was carried out to find the optimum conditions to determine oxygen in metallic chromium by either vacuum fusion method or bromine method. In the vacuum fusion process, oxygen was determined by using iron bath to drop the gas extraction temperature to 2100°. The apparatus used for the bromine method was that used for oxygen determination in titanium metal improved in several parts (bromine bottle and the reaction furnace). The optimum conditions for the determination of oxygen in chromium metal by bromine method are as follows: Bromination temperature 950±25°C Reaction time 1.5 hr; Sample 0.5 g; Graphite carbon 0.5 g; Argon gas flow rate 8 mL/min. The results of the oxygen determinations in electrolytic chromium agreed well in both methods.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 23 (5), 277-280, 1959

    公益社団法人 日本金属学会

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