炭素鋼中のアルミニウムの迅速光度定量法

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タイトル別名
  • Rapid Photometric Determination of Al in Carbon Steel
  • タンソ コウ チュウ ノ アルミニウム ノ ジンソク コウド テイリョウホウ

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抄録

A rapid photometric method has been developed for the determination of Al in carbon steel. The method is based on the reaction of Al with eriochrome cyanine-R to form a violet-red colored complex. The procedure is as follows; Dissolve 0.5 g of the sample with 20 mL of 1 to 1 HCl and 1 mL of cone. HNO3. Evaporate to 10 mL. Transfer the cooled solution to a separatory funnel, add 10 mL of 2 to 1 HCl and 20 mL of methyl iso-butyl ketone, and shake for 1 min to extract the Fe. Allow the layers to separate and drain the lower acid layer into a 100 mL volumetric flask, dilute to mark with water. Transfer a 10 mL,or 20 mL aliquot to a 100 mL beaker, add 5 mL of 1% ascorbic acid and 5 mL of 0.07% eriochrome cyanine-R solution. After 1 min, add 5 mL of 40% sodium acetate solution. Adjust to pH 7.0±0.1 with 1 to 1 NH4OH or 1 to 3 HNO3 using a pH meter. Transfer the solution to a 50 mL volumetric flask, dilute to mark with water. Measure the absorbance against blank at 535 mμ.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 24 (4), 233-237, 1960

    公益社団法人 日本金属学会

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