| 丁二酮肟沉淀钯-EDTA滴定法测定富钯物料中的钯 |
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| 引用本文： | 王艳红,宫嘉辰,陆小娟.丁二酮肟沉淀钯-EDTA滴定法测定富钯物料中的钯[J].有色矿冶,2011(5):53-54,58. |
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| 作者姓名： | 王艳红 宫嘉辰 陆小娟 |
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| 作者单位： | 沈阳有色金属研究院; |
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| 摘 要： | 试料用王水溶解，采用丁二酮肟沉淀钯与其他共存元素分离。沉淀经硝酸溶解后，加入过量EDTA络合钯。于pH=5．8醋酸-醋酸钠缓冲溶液中，以二甲酚橙为指示剂，用锌标准溶液滴定过量EDTA。再用丁二酮肟析出与钯络合的EDTA，三氯甲烷萃取，锌标准溶液滴定以测定钯量。实验并确定了沉淀分离钯的最佳条件，方法用于分析富钯物料中钯的测定，其相对标准偏差小于0．20％，结果准确可靠。
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| 关 键 词： | 丁二酮肟 钯 EDTA |
Dimethylglyoxime Precipitate Palladium-determines Palladium in the Rich Palladium material by EDTA Titrimetric Method |
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| WANG Yan-hong,GONG Chen-jia,LU Xiao-juan.Dimethylglyoxime Precipitate Palladium-determines Palladium in the Rich Palladium material by EDTA Titrimetric Method[J].Non-Ferrous Mining and Metallurgy,2011(5):53-54,58. |
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| Authors: | WANG Yan-hong GONG Chen-jia LU Xiao-juan |
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| Affiliation: | WANG Yan-hong,GONG Chen-jia,LU Xiao-juan(Shenyang Research Institute of Non-ferrous Metals,Shenyang 110141,China) |
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| Abstract: | The assay dissolved with the aqua regia,useing the dimethylglyoxime precipitation Palladium to separate with other co-existing elements.After nitric acid dissolved precipitation,joined the excessive EDTA complexing Palladium.In the pH=5.8 acetic acid-sodium acetate buffer solution,taked the XO as the indicator,with zinc standard solution titrate excessive EDTA.Useing the dimethylglyoxime separated Palladium which complexed EDTA,with the chloroform extracting,the zinc standard solution titrated to determine ... |
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| Keywords: | dimethylglyoxime palladium EDTA |
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