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アイテム
ホウフッ化カリウムの中和滴定
http://hdl.handle.net/10091/4292
http://hdl.handle.net/10091/4292ccef65f5-df4b-490a-b17c-7ea45aacf376
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
Liberal_arts_S02-03.pdf (329.9 kB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||||
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| 公開日 | 2010-02-12 | |||||||
| タイトル | ||||||||
| タイトル | ホウフッ化カリウムの中和滴定 | |||||||
| タイトル | ||||||||
| タイトル | Acidimetric determination of potassium borofluoride. | |||||||
| 言語 | ||||||||
| 言語 | jpn | |||||||
| 資源タイプ | ||||||||
| 資源 | http://purl.org/coar/resource_type/c_6501 | |||||||
| タイプ | departmental bulletin paper | |||||||
| 著者 |
原, 信
× 原, 信
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| 出版者 | ||||||||
| 出版者 | 信州大学教養部 | |||||||
| 引用 | ||||||||
| 内容記述 | 信州大学教養部紀要. 第二部, 自然科学 2: 9-15(1968) | |||||||
| 書誌情報 |
信州大学教養部紀要. 第二部, 自然科学 巻 2, p. 9-15, 発行日 1968-01-31 |
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| 抄録 | ||||||||
| 内容記述 | A rapid method for the determination of potassium borofluoride, which involves the decomposition of potassium borofluoride using calcium chloride solution with the formation of slightly soluble calcium fluoride and which involves too the subsequent titration of liberated acid with a sodium hydroxide solution using methyl orange as indicator, is presented here. The conditions for the complete decomposition of potassium borofluoride are: (1) initial concentration of acid; 0.02N HCl, (2) concentration of calcium chloride; 1M, (3) total volume of aqueous solution; 100ml, (4) time of boiling; 5 minutes. The amount of hydrochloric acid previously added is subtracted from titration, thus less than about 250mg sample can be determined. When more than 250mg sample is treated, the decomposition is incomplete because the concentration of the liberated acid exceeds the suitable range for 15 the decomposition. Then, after the first decomposition and titration, the conditions are adjusted again and the second decomposition and titration is continued, thus more than 1000mg sample can be determined. | |||||||
| 資源タイプ（コンテンツの種類） | ||||||||
| ISSN | ||||||||
| 収録物識別子タイプ | ISSN | |||||||
| 収録物識別子 | 0583-0613 | |||||||
| 書誌レコードID | ||||||||
| 収録物識別子タイプ | NCID | |||||||
| 収録物識別子 | AN0012116X | |||||||
| 出版タイプ | ||||||||
| 出版タイプ | VoR | |||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||
