(一)甲基丙烯酸(甲酯)含量的测定一、原理: 由异丁酸催化脱氢生成的甲基丙烯酸,可用溴化法测其含量。溴酸钾为强的氧化剂,在酸性介质中,反应可提供已知量的溴,生成的溴可与不饱和有机物起加成反应,但此步反应较慢,应于暗处放置15分钟。 (A) Determination of the content of (methyl methacrylate) First, the principle: Methacrylic acid from the dehydrogenation of isobutyric acid can be measured by bromination method. Potassium bromate is a strong oxidizing agent. In acidic media, the reaction provides a known amount of bromine. The resulting bromine can react with the unsaturated organic compound, but this step is slower and should be kept in the dark for 15 minutes.