摘要
钪－稀土－对乙酰基偶氮氯膦体系共显色效应的研究刘双成，徐钟隽，潘教麦（华东师范大学化学系，上海，２０００６２）关键词钪，稀土，对乙酰基偶氮氯膦，共显色效应不则称偶氮氯膦试剂与稀土元素的β型显色反应，已被广泛用于稀土的测定［１，２］．但是当多种稀土或某...
Scandium forms a β-type complex with p-acetylchlorophosphonazo(CPApA)in acidic medium.In the presence of cerium,a cocolouration effect was observed due to the formation of a mixed polynuclei complex[Sc-Ce-(CPApA)2].In this paper,the transformation reaction between α-complex of scandium-CPApA and β-complex was studied kinetically and the mechanism of the formation of the ternary complex was discussed.Finally,the cocolouration effect of scandium on RE-CPApA system has also been discussed.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1996年第7期1056-1058,共3页
Chemical Journal of Chinese Universities
关键词
钪
稀土
共显色效应
CPAPA
Scandium,Rare earth,p-Acetylchlorophosphonazo,Cocolouration effect
