| 新癸酸钴中不同氧化态钴的分离及测定 |
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| 引用本文： | 程长明,李毅,朱林,肖英,陈春玉,刘杨,王玲.新癸酸钴中不同氧化态钴的分离及测定[J].橡胶科技市场,2013(5):46-49. |
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| 作者姓名： | 程长明 李毅 朱林 肖英 陈春玉 刘杨 王玲 |
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| 作者单位： | 西南化工研究设计院有限公司工业排放气综合利用国家重点实验室,四川成都610225 |
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| 摘 要： | 研究新癸酸钴中不同氧化态钴分离及测定的方法。根据二价钴和三价钴与乙酰丙酮形成的配合物溶解性的不同,实现不同氧化态钴的有效分离;根据配合物稳定常数的不同,利用络合滴定法,测定新癸酸钴中二价钴含量。用本方法对自制及市售新癸酸钴样品的进行分离及测定取得满意的效果。
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| 关 键 词： | 新癸酸钴 钴含量 络合滴定法 二价钴 三价钴 |
Separation and Determination of the Cobalt in Different Oxidation States in Cobalt Neodecanoate |
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| Cheng Changming,Li Yi,Zhu Lin,Xiao Ying,Chen Chunyu,Liu Yang,Wang Ling.Separation and Determination of the Cobalt in Different Oxidation States in Cobalt Neodecanoate[J].China Rubber Science and Technology Market,2013(5):46-49. |
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| Authors: | Cheng Changming Li Yi Zhu Lin Xiao Ying Chen Chunyu Liu Yang Wang Ling |
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| Affiliation: | ( State Key Laboratory of Industrial Vent Gas Reuse, Southwest Research ＆ Design Institute of Chemical Industry, Chengdu 610225, China ) |
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| Abstract: | The separation and determination of the cobalt in different oxidation states in cobalt neodecanoate were investigated. The effective separation of divalent cobalt, Co （Ⅱ）, and trivalent cobalt, Co （Ⅲ）, was carried out by using acetylacetonate since the formed complexes had different solubility. The determination of Co （Ⅱ） content in cobalt neodecanoate was carried out by using complexometric titration and based on the difference in stability constant of the complexes. Through this method, separation and determination of the cobalt in self-made and commercial neodecanoate cobalt samples were successfully achieved. |
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| Keywords: | neodecanoate cobalt cobalt content cemplexometric titration divalent cobalt trivalent cobalt |
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