| 滴定法测定铝合金及铝土矿中硅 |
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| 引用本文： | 杨毅,陈一晴.滴定法测定铝合金及铝土矿中硅[J].分析试验室,2000,19(5):71-73. |
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| 作者姓名： | 杨毅 陈一晴 |
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| 作者单位： | 昆明冶金研究院分析室,昆明,650031 |
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| 摘 要： | 样品在银坩埚中用氢氧化钾于７５０℃下熔融１０ｍｉｎ后加盐酸（１＋１）使融块完全溶解，加入氟化钾和氯化钾使硅生成氟硅酸钾沉淀，过滤，沉淀经水解，用氢氧化钠标准溶液滴定。该法可测定含硅量１％以上的铝合金及铝土矿中硅，ＲＳＤ〈１．９６％。
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| 关 键 词： | 滴定法 铝合金 铝土矿 硅 测定 |
Determination of Silicon in Aluminium-alloy and Alumyte by Titration |
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| YANG Yi,CHENG Yi-qing.Determination of Silicon in Aluminium-alloy and Alumyte by Titration[J].Chinese Journal of Analysis Laboratory,2000,19(5):71-73. |
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| Authors: | YANG Yi CHENG Yi-qing |
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| Abstract: | Aluminium alloy and alumyte samples were fused in silver crucible by KOH.After dissolved by HCl,the sample was treated with KF and KCl,and K 2SiF 6 precipitate was formed.Si was then determined by titration with NaOH after K 2SiF 6 was hydrolgzed. |
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| Keywords: | Titration Aluminium-alloy Alumyte Silicon |
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