| 莫尔盐容量法测定岩矿中的金 |
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| 引用本文： | 石光明.莫尔盐容量法测定岩矿中的金[J].矿物岩石,1990(2). |
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| 作者姓名： | 石光明 |
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| 作者单位： | 西南地勘局283大队 达县市 |
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| 摘 要： | 试样经灼烧,磷酸-王水分解,用泡沫塑料吸附富集金,经灰化,过氧化氢和盐酸溶解,在磷酸介质中,以钒金试剂指示,莫尔盐滴定将Au~(3+)还原为Au~+,使溶液紫红色消失即为终点.可测定0.004g/t以上的金。
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| 关 键 词： | 莫尔盐 容量分析 金 泡沫塑料吸附 |
DETERMINATION OF GOLD IN ROCK MINERALS BY USING MOHR'S SALT VOLUMETRY |
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| Shi Guangming.DETERMINATION OF GOLD IN ROCK MINERALS BY USING MOHR''''S SALT VOLUMETRY[J].Journal of Mineralogy and Petrology,1990(2). |
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| Authors: | Shi Guangming |
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| Abstract: | After gold samples are burned and phosphoric acid and aqua regia are resolves, foam plastics are used to adsorb enriched gold.Thc adsorbed gold is dissolved in hydrogen dioxide and hydrochloric acid solutions, with vanadium gold reagent as an indication, Mohr's salt titration reduces Au~(3+)to Au~+,making the purple colour of the Solutions disappear,and in this way,more than 0.004 g/t gold can be determined. |
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| Keywords: | Mohr's salt volumetry gold foam plastic adsorb |
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