| 氧瓶燃烧电位滴定溴化环氧树脂中的溴 |
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| 引用本文： | 王悦悦,罗敏. 氧瓶燃烧电位滴定溴化环氧树脂中的溴[J]. 中国胶粘剂, 2007, 16(2): 30-32 |
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| 作者姓名： | 王悦悦 罗敏 |
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| 作者单位： | 1. 上海市合成树脂研究所,上海,200235
2. 上海海关化验中心,上海,200002 |
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| 摘 要： | 溴化环氧树脂样品用滤纸包裹,置于充满氧气的烧瓶中燃烧。样品中的碳生成二氧化碳。环氧树脂中的溴生成溴化物和少量溴酸盐或游离溴,被碱溶液吸收后经硫酸肼还原至溴化物,最后将生成的溴化物用硝酸银标准溶液进行电位滴定,采用银-特殊甘汞电极对指示终点。
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| 关 键 词： | 溴 溴化环氧树脂 氧瓶燃烧法 电位滴定法 |
| 文章编号： | 1004-2849(2007)02-0030-03 |
| 修稿时间： | 2006-12-05 |
Potentiometric method for bromine in brominated epoxy resin by oxygen flask combustion |
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| WANG Yue-yue,LUO Min. Potentiometric method for bromine in brominated epoxy resin by oxygen flask combustion[J]. China Adhesives, 2007, 16(2): 30-32 |
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| Authors: | WANG Yue-yue LUO Min |
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| Affiliation: | 1. Shanghai Research Institute of Synthetic Resins,Shanghai 200235,China; 2. Shanghai Customs Testing Center,Shanghai 200002,China |
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| Abstract: | The sample of brominated epoxy resin enclosed in filter paper is burned in flask filling with oxygen.The carben in the sample is burned to carbon dioxide.Bromine compounds are partially converted to bromate and elements.In this case they are reduced by treatment of the alkaline absorber solution with hydrazine sulfate solution after combustion and absorption.The resulting bromide is titrated potentiometrically with standard solution of silver nitrate using a silver-special calomel electrode system. |
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| Keywords: | bromine brominated epoxy resin oxygen flask combustion potentiometric mothod |
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