I_2、I^-淀粉溶液显色探究  

Exploration of Iodine and Iodyl ion in Amylum Solution Coloration

作　　者：吴庆轩[1] 范建春[1] 李金原[1] 

机构地区：[1]广西师范学院化学系,广西南宁530001

出　　处：《广西师范学院学报（自然科学版）》2005年第4期100-102,共3页Journal of Guangxi Teachers Education University(Natural Science Edition)

摘　　要：通过探究I2与I-使淀粉显色的实验条件及实质,纠正现行某些教材上是碘分子与直链淀粉形成络合物显蓝色的错误认识,证明使淀粉显色的物质应该是碘的分子离子而不是碘分子.This article mainly explores experimental condition that iodyl ion and amylum solution color reaction. Pepole always deem in iodostarch reaction only iodine makes amylum display blue, But it is a wrong thought. And this artcle redefines this thought. Evidence shows that amylum coloration is produced not by iodine.

关 键 词：碘单质 碘离子 碘分子离子 淀粉 包含物 显色 

分 类 号：O613.44[理学—无机化学]