燃焼法に依る鐵鋼中の硫黄定量法に就て

概要

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A procedure of applying the combustion method to pig iron and alloy steels such as Ni・Cr and Ni・Cr・Mo steels was investigated in detail. The outline of the experiment is as follows : - (1) The specimen of 1.6g was burned at 1300℃ for 30 minutes at the rate of oxygen flow of 200cc/min. (2) The 1% neutral hydrogen peroxide was used as an absorbing solution. (3) A CO_2-free purified air was passed at the rate of 500cc/min. for 15 minutes before titration to expel the residual CO_2 gas in the absorbent. (4) Bromkresolblau (Riken, pH : 6.8-8.0) was used as an indicator, and N/100 NaOH applied in titration. (5) The result of the analysis was accurate within ±0.001%.
社団法人日本鉄鋼協会の論文
1940-08-25