| 容量法快速测定煤中全硫 |
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| 引用本文： | 谢玉艳.容量法快速测定煤中全硫[J].化工技术与开发,2012(4):34-35,31. |
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| 作者姓名： | 谢玉艳 |
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| 作者单位： | 广西现代职业技术学院资源工程系 |
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| 摘 要： | 针对称量法测定煤中全硫含量耗时长,介绍了一种快速测定方法。煤中全硫与艾士卡试剂在高温条件下反应生成硫酸钠,硫酸钠与铬酸钡在盐酸介质中反应生成硫酸钡沉淀和重铬酸钠,中和后过滤除去硫酸钡沉淀和过量的铬酸钡,滤液酸化又得到重铬酸钠,加入碘化钾作用定量地析出碘,用硫代硫酸钠标准溶液滴定。方法容易掌握,准确度高。
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| 关 键 词： | 容量分析 全硫 煤 |
Determination of Total Sulfur in Coal by Volumetric Rapid Method |
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| XIE Yu-yan.Determination of Total Sulfur in Coal by Volumetric Rapid Method[J].Technology & Development of Chemical Industry,2012(4):34-35,31. |
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| Authors: | XIE Yu-yan |
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| Affiliation: | XIE Yu-yan(Department of Resources Engineering,Guangxi Modern Polytechnic College,Hechi 547000,China) |
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| Abstract: | A new rapid method for the determination of total sulfur in coal was proposed. The total sulfur in coal could react with Aishika reagent to form sodium sulfate under the hot conditions.In the hydrochloric acid medium,sodium sulfate reacted with barium chromate to form barium sulfate precipitate and sodium dichromate.After neutralization filter separate,barium sulfate precipitate and the excessive barium chromate was removed.The filtrate was acidized to get the sodium dichromate.Joined the potassium iodide,iodine was quantity obtained. |
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| Keywords: | volumetric sulfur coal |
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