文献类型：期刊文献

英文题名：A KINETIC-STUDY OF THE FORMATION OF SOME PYRYLIUM AND THIOPYRYLIUM POLYMETHINE CYANINE DYES

作者：ZHU, ZH; ZHANG, JL

年份：1994

卷号：26

期号：2

起止页码：89

外文期刊名：DYES AND PIGMENTS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:A1994PU20100003)】；

语种：英文

摘要：The mechanism of formation of some heptamethine pyrylium and thiopyrylium cyanine dyes has been studied using the TLC-double scanning method. The dyes are formed through a consecutive reaction route, with different rate constants at a given temperature. The function of added catalyst (sodium acetate) is also studied The mechanism of the reaction is described on the basis of the kinetic study.