| 草酸钠—高锰酸钾返滴定法快速测定锰矿石中MnO2 |
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| 引用本文： | 马清文,王俊秀,李艳丽,李龙霞,国红杰.草酸钠—高锰酸钾返滴定法快速测定锰矿石中MnO2[J].山东冶金,2009,31(5):150-151. |
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| 作者姓名： | 马清文 王俊秀 李艳丽 李龙霞 国红杰 |
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| 作者单位： | 山东鲁丽钢铁有限公司,山东,寿光,262724 |
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| 摘 要： | 用稀硫酸溶解试样,用草酸钠还原法,以定量的草酸钠还原锰矿石中的MnO2,再用高锰酸钾标准溶液滴定剩余的草酸钠,求出MnO2的含量。实验结果表明,分析误差完全在国标分析误差允许范围内。
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| 关 键 词： | 锰矿石 稀硫酸介质 MnO2 草酸钠 高锰酸钾 |
Rapid Determination of the MnO2 in Manganese Ore by Sodium Oxalate - Potassium Permanganate Back Titrimetric Method |
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| MA Qing-wen,WANG Jun-xiu,LI Yan-li,LI Long-xia,GUO Hong-jie.Rapid Determination of the MnO2 in Manganese Ore by Sodium Oxalate - Potassium Permanganate Back Titrimetric Method[J].Shandong Metallurgy,2009,31(5):150-151. |
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| Authors: | MA Qing-wen WANG Jun-xiu LI Yan-li LI Long-xia GUO Hong-jie |
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| Affiliation: | (Shandong Luli Iron and Steel Co., Ltd., Shouguang 262724, China) |
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| Abstract: | Manganese ore sample was solved with dilute sulfuric acid. Using sodium oxalate reduction method,that is,the MnO2 in sulfuric acid medium was reduced by quantitative sodium oxalate,and then the remaining sodium oxalate was titrated by potassium permanganate standard solution for finding the content of MnO2. The experimental results showed that the analytical error was entirely in the national standard analytical error allowed range. |
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| Keywords: | MnO2 |
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