C.I.活性黑5低温水解性能分析

纺织学报 ›› 2009, Vol. 30 ›› Issue (04): 59-64.

C.I.活性黑5低温水解性能分析

林素玲；沈一峰；邵敏；林鹤鸣

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-04-15 发布日期:2009-04-15

Hydrolysis performance of C.I. Reactive Black 5 at low-temperature

LIN Suling； SHEN Yifeng； SHAO Min ；LIN Heming

Received:1900-01-01 Revised:1900-01-01 Online:2009-04-15 Published:2009-04-15

摘要/Abstract

摘要： 为研究并有效控制活性染料在冷轧堆染色中的水解，应用高效液相色谱（HPLC）对双乙烯砜型活性染料C.I.活性黑5在低温下的水解性能进行定性及定量分析。结果表明：在碱性缓冲液中，C.I.活性黑5的消除反应及水解反应为假一级反应，在其消除反应速率及水解反应速率均随着缓冲液pH值增加而显著提高；在30℃、pH值为9时，C.I.活性黑5的水解速率为3.5×10-5/min-1；相同温度下，在pH值10、11、12时该染料的水解反应速率常数分别是pH值为9时的3、27、233倍，因此，C.I.活性黑5在冷轧堆染色时，在 pH值为9～10的缓冲液中水解稳定性较好。

Abstract: For the purpose of investigating the hydrolysis performance of bifunctional vinylsulfone reactive dyes in cold pad-bath dyeing, the high performance liquid chromatography was applied to analyze the process of hydrolysis of C.I.Reactive Black 5 qualitatively and quantitatively at low-temperature. The results showed that the rate of elimination reaction and hydrolysis reaction increases with the increase of pH value. In the alkaline solution, both of the reactins are of pseudo first-order. When the temperature is 30℃ and pH=9,the rate of hydrolysis of C.I. Reactive Black 5 is 3.5×10-5/min-1, and the rate of hydrolysis of C.I.Reactive Black 5 at pH=10,pH=11,and pH=12 is about 3 times,27 times, and 233 times higher than that of C. I. Reactive Black 5 at pH=9, respectively. The result of the present work implied that C. I. Reactive Black 5 has a relatively stable performance.

林素玲;沈一峰;邵敏;林鹤鸣. C.I.活性黑5低温水解性能分析[J]. 纺织学报, 2009, 30(04): 59-64.

LIN Suling;SHEN Yifeng;SHAO Min;LIN Heming. Hydrolysis performance of C.I. Reactive Black 5 at low-temperature[J]. JOURNAL OF TEXTILE RESEARCH, 2009, 30(04): 59-64.

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