ヴアナヂンによる鐵鋼中の銅の定量
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概要
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Sample of steel is dissolved by HCI keeping iron in bivalent state and after filtered residue, the solution is transfered to the VOSO_4 solution which is previously prepared in the reductor by amalgamatedzinc, then metallic copper will be deposited. This copper together the residue which previously filterd are dissolved by HNO_3, H_2SO_4 is add ed then evaporated to dryness until HNO_3 is gone, and iron and copper are filtered off after precipirated with NH_4OH, then copper is determined by the KI method.
- 1948-07-25
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