| Chemistry of marine resources——ⅩⅥ. A new potassium reagent and its enrichment behaviour for potassium ion in seawater |
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| 作者姓名： | Sun Yushan Feng Fei Liang Weimin Peng Qiqiang Yang Fushun |
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| 作者单位： | Department of Marine Chemistry, Ocean University of Qingdao, Qingdao, China;Department of Marine Chemistry, Ocean University of Qingdao, Qingdao, China;Department of Marine Chemistry, Ocean University of Qingdao, Qingdao, China;Department of Marine Chemistry, Ocean University of Qingdao, Qingdao, China;Department of Chemistry, Wuhan University, Wuhan, China |
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| 摘 要： | This paper first presents a new potassium reagent and efficient enrichment agent for direct recovery of potassium from seawater,i.e.,1,2,4,5-tetrahydroxybenzen -O,O'',O",O''"-tetraacetic acid (TTAH4).The synthetic method of TTAH4,its enrichment behaviour for potassium ion in low concentration solution and seawater,and the chemical structure of its corresponding potassium salt have been investigated.A mechanism which caused the uptake of potassium ion is suggested.Elementary analysis and IR-spectrum determination of the potassium salt proved correct evidence for a polynuclear complex,i.e., (TTAH3K)n.Thus,the mechanism which caused the uptake of potassium ion may be interpreted in terms of the formation of polynuclear chains as a continual sandwich type coordination complex.
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| 收稿时间： | 1989/7/12 0:00:00 |
| 修稿时间： | 2/5/1990 12:00:00 AM |
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