| 乙二胺磺甲基化产物络合性能的研究 |
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| 引用本文： | 史俊,刘学,崔进,张海.乙二胺磺甲基化产物络合性能的研究[J].西安石油大学学报(自然科学版),2006,21(2):41-43. |
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| 作者姓名： | 史俊 刘学 崔进 张海 |
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| 作者单位： | 西安石油大学,化学化工学院,陕西,西安,710065 |
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| 摘 要： | 以乙二胺、甲醛、亚硫酸钠为原料合成了乙二胺四甲撑磺酸盐(EDTS),考虑了介质酸度、缓冲溶液用量、显色剂用量、显色温度等影响因素,利用分光光度法确定了EDTS与Cu2+形成络合物的最佳显色条件pH值为5.0~5.8的Hac-NaAc缓冲溶液1.50mL与6.0mLEDTS混合在80℃水浴加热15min得到的显色效果较好.用摩尔比法准确测定出EDTS对Cu2+的络合配比为2∶1,形成的络合物最大吸收波长在590nm处.
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| 关 键 词： | 乙二胺 磺甲基化 物质的量比法 络合物 |
| 文章编号： | 1673-064X(2006)02-0041-03 |
| 修稿时间： | 2005年12月10 |
Research on complexing performance of the product of ethylenediamine sulphomethylation |
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| SHI Jun,LIU Xue,CUI Jin,ZHANG Hai.Research on complexing performance of the product of ethylenediamine sulphomethylation[J].Journal of Xian Shiyou University,2006,21(2):41-43. |
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| Authors: | SHI Jun LIU Xue CUI Jin ZHANG Hai |
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| Abstract: | Ethylenediamine–tetramethyl-sulfonate is synthesized from sodium sulfite, formaldehyde and ethylenediamine. The influences of medium acidity, the dose of buffer solution, the dose of developer and color development temperature on the color-development property of the product are studied, and the optimal color-development conditions in using EDTS and Cu 2+ forming complex are determined using spectrophotometry. It is shown that, the color development result of the complex is better when Hac-NaAc buffer solution of 1.50 mL and EDTS of 6.0 mL are mixed and are heated 15 min in the water bath of 80 ℃. The complexing ratio of EDTS to Cu 2+ is measured by mole ratio method and it is 2∶1. The maximum absorbing wave-length of the formed complex is at 590 nm. |
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| Keywords: | ethylenediamine sulfomethylation mole ratio method complex |
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