Studies on the Microdetermination of Metals by Extracting the Inorganic Compounds with Organic Solvents. III : Microdetermination of Molybdenum
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概要
- 論文の詳細を見る
The molybdenum ion reduced by stannous chloride or hydrazine sulfate forms a complex compounds with thiocyanate, which can be extracted by organic solvent from aqueous solution. The maximum absorption peaks of this compound are found at 335 and 468 mμ when stannous chloride is used as reducing agent, and at 320 and 460 mμ when hydrazine sulfate is used. The absorbancies are proportional to the molybdenum content at these wave lengths and adoptable for the microdetermination of molybdenum. Organic solvents suitable for the extraction of molybdenum compound are acetate esters, alcohols and mixed solvent of esters or alcohols with carbon tetrachloride or chlorform. Optimum acid concentrations for the extraction and spectrophotometric determination of molybdenum are 0.9〜1.0 N of hydrochloric acid in stannous chloride reduction and 0.8〜1.2-N of sulfuric acid in hydrazine sulfate reduction method, and 1〜10γ of molybdenum can be determined by this method.
- 東北大学の論文
著者
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Goto Hidehiro
The Research Institute For Iron Steel And Other Metal S
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Ikeda Shigero
The Research Institute For Iron Steel And Other Metals
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Goto Hidehiro
The Research Institute For Iron Steel And Other Metal
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