The Routine Determination of Nitrogen in Cast Iron by the Chemical Distillation and Inert Gas Fusion Methods

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書誌事項

公開日
1966
DOI
  • 10.1246/bcsj.39.1453
公開者
公益社団法人 日本化学会

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説明

Although the chemical distillation method is generally employed for the determination of nitrogen in metals, it has been found that this method involves some difficulties in cast iron and pig iron samples. This paper will, therefore, describe new, repreoducible methods for the determination of nitrogen in chilled cast iron. They are the inert gas fusion and the chemical distillation methods. The most suitable sample for obtaining almost the same results with regard to ordinary cast iron by both methods was found to be a thin plate chilled by a copper mold. The accuracy of both methods was ±0.0004% when thin-plate samples containing from 0.0030 to 0.010% nitrogen were used.

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