| 白乳胶中甲醛含量测定方法研究 |
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| 引用本文： | 刘才林,任先艳,胡小亮,刘靖宇.白乳胶中甲醛含量测定方法研究[J].中国胶粘剂,2010,19(3). |
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| 作者姓名： | 刘才林 任先艳 胡小亮 刘靖宇 |
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| 作者单位： | 西南科技大学材料科学与工程学院,四川,绵阳,621010 |
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| 基金项目： | 西南科技大学引进人才基金项目(O6ZX7105) |
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| 摘 要： | 采用化学滴定法(碘量法)和乙酰丙酮分光光度法对五种市售白乳胶中甲醛含量进行测定与比较,并设计出一种可以快速简便测定甲醛含量的定性方法——希夫试剂比色法。结果表明:采用碘量法和分光光度法测定白乳胶中游离甲醛含量,两者测试结果相近,偏差在2.6%～7.0%之间;希夫试剂比色法操作简单、快速,但误差较大,可以用作快速定性判定样品中是否含有游离甲醛;在其它条件保持不变的前提下,测试温度越高,白乳胶中游离甲醛含量的测试结果越大。
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| 关 键 词： | 白乳胶 甲醛含量 测定 |
Study on mensurating methods of formaldehyde content in white latex |
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| LIU Cai-lin,REN Xian-yan,HU Xiao-liang,LIU Jing-yu.Study on mensurating methods of formaldehyde content in white latex[J].China Adhesives,2010,19(3). |
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| Authors: | LIU Cai-lin REN Xian-yan HU Xiao-liang LIU Jing-yu |
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| Affiliation: | School of Materials Science and Engineering;Southwest University of Science and Technology;Mianyang 621010;China |
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| Abstract: | The formaldehyde contents in five kinds marketed white latexes were mensurated and compared by chemical titration(iodimetry) and acetylacetone spectrophotometry.A Schiff reagent colorimetry as simpler and faster qualitative mensurating methods of formaldehyde content was devised.The results showed that two mensurating results of free formaldehyde contents in white latexes were similar by iodimetry and acetylacetone spectrophotometry,the deviation of two mensurating results was between 2.6% and 7.0%.The Schi... |
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| Keywords: | white latex formaldehyde content mensurating |
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