摘要
对顺丁烯二酸酐含量测定采用的多种指示剂进行了对比测试研究。实验结果表明,百里酚酞和酚酞混合指示剂具有良好的测试效果,酚酞具有较好的测试效果,而百里酚酞和茜素红混合指示剂、百里酚酞和茜素黄R混合指示剂的测试效果较差。提出了采用百里酚酞和酚酞混合指示剂作为顺丁烯二酸酐含量测定的新指示剂。
Varied indicators were compared in the determination of maleic anhydride. The results showed that the mixed indicator of thymolphthalein with phenolphthalein had the best effect, phenolphthalein followed. The mixed indicator of thymolphthalein with alizarin red and the mixed indicator of thymolphthalein with alizarin yellow R had the worst effect. The mixed indicator of thymolphthalein with phenolphthalein was applied as the new indicator for the determination of maleic anhydride.
出处
《化工技术与开发》
CAS
2005年第6期45-46,共2页
Technology & Development of Chemical Industry
