| 钴和硼的联合测定 |
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| 引用本文： | 李祖光,高云芳,高志祥. 钴和硼的联合测定[J]. 分析试验室, 2001, 20(3): 76-78 |
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| 作者姓名： | 李祖光 高云芳 高志祥 |
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| 作者单位： | 1. 浙江工业大学化工学院,
2. 北京有色金属研究总院, |
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| 基金项目： | 浙江省分析测试基金资助项目! (0 0 1 73 ) |
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| 摘 要： | 建立了一种联合测定硼酰化钴中钴含量和硼含量的分析方法。采用二甲酚橙为指示剂，EDTA为滴定剂测钴时，加入孔雀绿作衬托剂，可明显改善滴定终点。采用甘露醇强化硼酸滴定硼时，以EDTA为掩蔽剂，可消除二价钴对硼分析的干扰，改用溴甲酚绿－甲基红－酚酞三元混合指示剂作为测定硼的指示剂，使滴定终点灵敏，准确。
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| 关 键 词： | 硼酰化钴 硼 钴 滴定法 橡胶 粘合促进剂 联合测定 |
| 文章编号： | 1000-0720(2001)03-0076-03 |
Determination of cobalt and boron in cobalt-boron complex |
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| LI Zu-guang,Gao Yun-fang,GAO Zhi-xiang. Determination of cobalt and boron in cobalt-boron complex[J]. Chinese Journal of Analysis Laboratory, 2001, 20(3): 76-78 |
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| Authors: | LI Zu-guang Gao Yun-fang GAO Zhi-xiang |
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| Abstract: | A method of determination cobalt and boron in boron-containing fine organic chemicals was described. Cobalt was titrated at pH 5～6 in hexamethylenetramine medium using xylenol orange and malachite green as indicator.A mixed indicator composed of bromocresol green, methyl red and phenalphthalein was used as indicator in titration of boron after the inteterience of cobalt was masked by EDTA.It is simple and fast and has been satisfactorily used for the determination of cobalt and boron in the rubber adhesion promoter, such as cobalt-boron complex. |
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| Keywords: | Cobalt Boron Cobalt boron complex Titration |
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