STUDIES ON NEW REACTIVE DYES HAVING 2 VINYL SULFONE GROUPS - PART II - KINETIC-STUDIES OF THE CONDENSATION REACTION BETWEEN CI-REACTIVE-RED-120 AND M-(BETA-SULFATOETHYL-SULFONYL)ANILINE AND P-(BETA-SULFATOETHYL-SULFONYL)ANILINE

Authors
ZHU ZH JIANG LM
Citation
Zh. Zhu et Lm. Jiang, STUDIES ON NEW REACTIVE DYES HAVING 2 VINYL SULFONE GROUPS - PART II - KINETIC-STUDIES OF THE CONDENSATION REACTION BETWEEN CI-REACTIVE-RED-120 AND M-(BETA-SULFATOETHYL-SULFONYL)ANILINE AND P-(BETA-SULFATOETHYL-SULFONYL)ANILINE, Dyes and pigments, 36(4), 1998, pp. 355-363
Citations number
1
Categorie Soggetti
Engineering, Chemical","Chemistry Applied","Materiales Science, Textiles
Journal title
Dyes and pigments → ACNP
ISSN journal
01437208
Volume
36
Issue
4
Year of publication
1998
Pages
355 - 363
Database
ISI
SICI code
0143-7208(1998)36:4<355:SONRDH>2.0.ZU;2-H
Abstract
The condensation reaction between C.I. Reactive Red 120 and m- and p-( beta-sulfatoethyl-sulfonyl)aniline has been studied using the TLC-doub le scanning method. The condensation reaction follows a consecutive re action route, and the rates of the first-step reaction (k(1)) are abou t twice as fast as those of the second-step reaction (k(1)) The rate c onstants of the two step reaction (k(1) and k(2)) vary with reaction t emperature and pH. The rate constants of the condensation reaction bet ween m-(beta-sulfatoethyl-sulfonyl)aniline and C.I. Reactive Red 120 a re about 10 times greater than for p-(beta-sulfatoethyl-sulfonyl)anili ne. (C) 1998 Elsevier Science Ltd.