含氢硅油活泼氢含量的测定  

Measurement of the active hydrogen content of hydrosilicone oil

作　　者：方芳[1] 高慧莲[1] 张海婴[1] 

机构地区：[1]浙江传化股份有限公司,浙江杭州311215

出　　处：《印染助剂》2013年第12期45-47,共3页Textile Auxiliaries

摘　　要：将含氢硅油与溴在酸性条件下反应生成溴化氢,过量的溴与碘化钾反应,析出的碘用硫代硫酸钠标准溶液滴定,建立了含氢硅油活泼氢含量的测定方法.考察了溶剂种类、称样量、溴-乙酸溶液用量、碘化钾用量、反应时间对测试结果的影响.Abstract： The measurement method of active hydrogen content of hydrosilicone oil was established through the reaction of hydrosilicone oil with bromine under acidic condition to generate hydrogen bromide, and the excess bromine reacted with potassium iodide, then the salting out iodine was measured with stan- dard titration of sodium thiosulfate solution. The effects of solvent types, the weight of sample, the amount of bromoacetic acid solution and potassium iodide and the reaction time on the measurement result were investi- gated.

关 键 词：含氢硅油 活泼氢 溴-乙酸溶液 碘化钾 

分 类 号：TQ317.4[化学工程—高聚物工业]