還元マンガン鉱石中のフェロマンガンと酸化第一マンガンの分別定量法

DOI Web Site Web Site

書誌事項

タイトル別名
  • Fractional Determination of Ferro-Manganese and Manganese Monoxide in Reduced Manganese Ores
  • カンゲン マンガン コウセキ チュウ ノ フェロ マンガン ト サンカ ダイイチ マンガン ノ フンベツ テイリョウホウ

この論文をさがす

抄録

Although a methyl alcoholic solution of mercuric chloride little dissolves the manganese monoxide fraction, as was seen in the previous paper, this solution is still found to have some defect, because the ferro-manganese fraction, produced in the process of reducing of some kind of manganese ores, is not efficiently brought into solution together with metallic manganese. After further trials,a 50 mL methyl alcohol solution containing 5 g of cupric chloride and 0.4 g of sodium carbonate, kept at 40°C for an hour, was found the best for the purpose. The resultant solution containing the digested specimen is, after being filtered and washed, treated with sulfuric acid, to which metallic aluminium is added to remove cupper ion present by heating the solution till it becomes colorless and filtering off; the manganese present in the solution treated thus determined titrimetrically be means of ferrous-permanganate method represents the metallic manganese including that in the ferro-manganese fraction with minimized manganese monoxide dissolution.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 24 (4), 221-225, 1960

    公益社団法人 日本金属学会

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ