Textile Coloration and Finishing (한국염색가공학회지)
- Volume 13 Issue 5
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- Pages.312-319
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- 2001
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- 1229-0033(pISSN)
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- 2234-036X(eISSN)
Kinetics and Mechanism for Alkaline Hydrolysis of C. I. Disperse Blue 79
C. I. Disperse Blue 79의 알칼리 가수분해 반응속도 및 반응메카니즘
Abstract
Kinetics and mechanism for alkaline hydrolysis of C. I. Disperse Blue 79(B-79) which is 4-N, N- diacetoxyethyl -2- acylamino-5-ethos y -2'-bromo-4',6'-dinitroazobenzene were investigated. The color strength of B-79 in acetone/water solutions of various NaOH concentrations decreased continuously. The hydrolysis rate of B-79 increased with increasing alkali concentration and appeared following first order reaction. The observed rate constants for various concentrations of B-79 showed similar values, and B-79 was hydrolyzed by first order reaction for dye concentration. Therefore, it was confirmed that the overall reaction follow second order kinetics and proceed via
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