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Fundamental Studies on Dissolution of Gold in Cyanide Solutions. III : Effects of Alkalis, Lead Acetate, and Some Impurities Contained in Foul Cyanide Solutions
https://doi.org/10.50974/00041373
https://doi.org/10.50974/00041373287627d9-a63e-4490-8fec-7fc82ee14392
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
KJ00004195508.pdf (1.4 MB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||||
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| 公開日 | 2008-05-02 | |||||||
| タイトル | ||||||||
| タイトル | Fundamental Studies on Dissolution of Gold in Cyanide Solutions. III : Effects of Alkalis, Lead Acetate, and Some Impurities Contained in Foul Cyanide Solutions | |||||||
| 言語 | ||||||||
| 言語 | eng | |||||||
| 資源タイプ | ||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||
| 資源タイプ | departmental bulletin paper | |||||||
| ID登録 | ||||||||
| ID登録 | 10.50974/00041373 | |||||||
| ID登録タイプ | JaLC | |||||||
| 著者 |
KAMEDA, Mitsuo
× KAMEDA, Mitsuo
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| 抄録 | ||||||||
| 内容記述タイプ | Abstract | |||||||
| 内容記述 | By dissolving a pure gold plate under air agitation in potassium cyanide solutions, the effects of alkalis, lead acetate and impurities contained in foul cyanide solutions upon the rate of dissolution of gold were examined. It was found that calcium hydroxide, at a lower concentration, rapidly reduces the rate of dissolution, and this seems to be mainly due to the fact that calcium hydroxide would convert the hydrogen peroxide, formed as the intermediate substance of Bodlaender's equations, into rather insoluble calcium peroxide. The addition of lead acetate was found to cause both accelerated and retarded dissolution aud it seems probable that, as lead is electronegative to gold, the gold would deposit lead on its surface, resulting in the formation of local circuits on its surface. Passivity caused by lead acetate seems to be due to the fact that the lead thus deposited would be converted to some insoluble lead compound which would coat gold and prevent the further dissolution of gold. Furthermore the results of the study of the effects of some impurities usually contained in foul cyanide solutions are also given. | |||||||
| 書誌情報 |
Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy 巻 1, p. 435-444, 発行日 1949 |
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| 収録物識別子タイプ | ISSN | |||||||
| 収録物識別子 | 00408808 | |||||||
| 書誌レコードID | ||||||||
| 収録物識別子タイプ | NCID | |||||||
| 収録物識別子 | AA00836167 | |||||||
| フォーマット | ||||||||
| 内容記述タイプ | Other | |||||||
| 内容記述 | application/pdf | |||||||
| 著者版フラグ | ||||||||
| 出版タイプ | VoR | |||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||
| 出版者 | ||||||||
| 出版者 | Tohoku University | |||||||
| 資源タイプ | ||||||||
| 内容記述タイプ | Other | |||||||
| 内容記述 | 紀要類(bulletin) | |||||||
| 登録日 | ||||||||
| 日付 | 2008-05-02 | |||||||
| 日付タイプ | Created | |||||||
| 公開日（投稿完了日） | ||||||||
| 日付 | 2008-05-02 | |||||||
| 日付タイプ | Created | |||||||
| 発行日 | ||||||||
| 日付 | 1949 | |||||||
| 日付タイプ | Created | |||||||
| フォーマット | ||||||||
| 内容記述タイプ | Other | |||||||
| 内容記述 | 1378955 bytes | |||||||
| 更新日 | ||||||||
| 日付 | 2010-01-27 | |||||||
| 日付タイプ | Created | |||||||
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Cite as
KAMEDA, Mitsuo, 1949, Fundamental Studies on Dissolution of Gold in Cyanide Solutions. III : Effects of Alkalis, Lead Acetate, and Some Impurities Contained in Foul Cyanide Solutions: Tohoku University, 435–444 p.
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