| 铝片还原-重铬酸钾滴定法测定硫铁矿中铁的改进 |
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| 引用本文： | 施先义,廖静婷,王世彬.铝片还原-重铬酸钾滴定法测定硫铁矿中铁的改进[J].岩矿测试,2009,28(2):197-198. |
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| 作者姓名： | 施先义 廖静婷 王世彬 |
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| 作者单位： | 河池职业学院资源工程系,广西,河池,547000 |
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| 摘 要： | 针对氯化亚锡-氯化汞-重铬酸钾法测定铁的含量时,汞对环境有污染问题,文章采用隔绝空气的方法用铝还原三价铁,在盐酸介质中用重铬酸钾标准滴定溶液滴定二价铁。方法精密度(RSD,n=5)低于1%,用于硫铁矿中铁的测定,结果可靠。
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| 关 键 词： | 铝片还原 重铬酸钾滴定法 铁 硫铁矿 |
| 收稿时间： | 2008/9/28 0:00:00 |
| 修稿时间： | 2008/12/21 0:00:00 |
Improvement on the method for Determination of Iron in Pyrites by Potassium Dichromate Titrimetry with Aluminium Tablet Reduction |
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| SHI Xian-yi,LIAO Jing-ting and WANG Shi-bin.Improvement on the method for Determination of Iron in Pyrites by Potassium Dichromate Titrimetry with Aluminium Tablet Reduction[J].Rock and Mineral Analysis,2009,28(2):197-198. |
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| Authors: | SHI Xian-yi LIAO Jing-ting and WANG Shi-bin |
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| Institution: | (Department of Resources and Engineering,Hechi Vocational College,Hechi 547000,China) |
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| Abstract: | In view of the environmental pollution from mercury in determination of iron by means of stannous chloride-mercury chloride-potassium dichromate titration,a new method without use of mercury reagent is proposed in this paper.By cutting off air,aluminium tablet is used to reduce ferric to ferrous and then ferrous is determined by potassium dichromate titrimetry.The method is reliable with precision of 0.61%RSD(n=5) and suitable for the determination of iron in pyrites. |
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| Keywords: | aluminium tablet reduction potassium dichromate titrimetry iron pyrite |
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