| Triton X-100存在下钴与α-(α-噻唑偶氮)-5-二甲氨基苯甲酸的胶束显色反应 |
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| 引用本文： | 沈含熙,王振清,李文兰,叶嘉瑜,潘雪珍,焦方喜. Triton X-100存在下钴与α-(α-噻唑偶氮)-5-二甲氨基苯甲酸的胶束显色反应[J]. 化学学报, 1988, 46(3): 285-289 |
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| 作者姓名： | 沈含熙 王振清 李文兰 叶嘉瑜 潘雪珍 焦方喜 |
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| 作者单位： | 南开大学化学系;天津市化学试剂研究所 |
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| 摘 要： | 本文简化并改进了2-(2-噻唑偶氮)-5-二甲氨基苯甲酸(TAMB)的合成方法. 详细研究了在非离子表面活性剂Triton X-100存在下TAMB与钴的胶束增敏显色反应.
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| 关 键 词： | 紫外分光光度法 胶束 钴 红外分光光度法 显色剂 显色反应 苯甲酸P 非离子表面活性剂 钴络合物 噻唑偶氮化合物 |
Studies on the micellar color reaction of cobalt with 2-(2-thiazolylazo-5-dimethylaminobenzoic acid in the presence of triton X-100 |
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| SHEN HANXI,WANG ZHENQING,LI WENLAN,YE JIAYU,PAN XUEZHEN,JIAO FANXI. Studies on the micellar color reaction of cobalt with 2-(2-thiazolylazo-5-dimethylaminobenzoic acid in the presence of triton X-100[J]. Acta Chimica Sinica, 1988, 46(3): 285-289 |
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| Authors: | SHEN HANXI WANG ZHENQING LI WENLAN YE JIAYU PAN XUEZHEN JIAO FANXI |
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| Abstract: | The micellar color reaction of cobalt with 2-(2-thiazolylazo)-5-dimethylaminobenzoic acid (TAMB) in the presence of nonionic surfactant was investigated. The pH range for the complex formation is within 3.8-5.8; the complex is stable in 2 mol. dm-3 HCl. The complex shows an absorption max. at 668 nm with apparent molar absorptivity of 1.22 ?105 dm3 mol-1 cm-1. Beer's law is obeyed up to 10.0 mg Co/25 mL. The ratio of Co:TAMB in the complex is 1:3 by different methods; the oxidation state of cobalt ions in the complex is Co3+. The L-M electronic transition of the complex was proved. |
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| Keywords: | ULTRAVIOLET SPECTROPHOTOMETRY MICELLE COBALT INFRARED SPECTROPHOTOMETRY COLOUR REAGENTS COLOR REACTION BENZENECARBOXYLIC ACID P NON IONIC SURFACTANTS COBALT COMPLEX THIAZOLE-AZO COMPOUNDS |
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