鋼中金属アルミニウム, アルミナ, 窒化アルミニウムの分離定量法に就いて

概要

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When 1g of steel (Al content<0.2%) is dissolved with 20cc of dilute H_2SO_4 (1+9) and 5cc of H_2O_2 (30%) metallic Al and AlN in steel dissolve comletely simultaneously with iron matrix, while Al_2O_3 remains in residue. According to Beeghly's research, AlN in steel is not dissolved at all with Ester-Halogen reagents and is found quantitatively in the residue. The authors, on the basis of these properties, have determined metallic Al, AIN and Al_2O_3 in steel separately. It requires about three hours in case of applying this method and the results obtained have shown good reproducibility. Then, some investigations applying this determination method, have been made on metallic Al, Al_2O_3 and AlN in Thomas steel.
社団法人日本鉄鋼協会の論文
1954-04-25