Influence of Nonionic Surfactant on Alkaline Hydrolysis of Methyl Violet Catalyzed by Cetyltrimethylammonium Bromide

被引:3
|
作者
Singh, N. Arunkumar [1 ]
Srivastava, S. K. [1 ]
机构
[1] Manipur Univ, Dept Chem, Imphal 795003, Manipur, India
关键词
Counterions; micellar catalysis; mixed surfactants; Piszkiewicz model; positive cooperativity; SODIUM DODECYL-SULFATE; MIXED MICELLES; TRITON X-100; MICROENVIRONMENTAL PROPERTIES; MIXTURES; MICELLIZATION; STABILITY; SYSTEMS; IONS;
D O I
10.1080/01932691.2011.599217
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The alkaline hydrolysis of methyl violet (MV) was studied by spectrophotometric method under pseudo-first-order conditions at 298 K. Cationic surfactant cetyltrimethylammonium bromide (CTAB) catalyzed the reaction. Addition of nonionic surfactant Triton X-100 (TX-100) exhibited significant influence on the CTAB catalyzed reaction by lowering the extent of catalysis. The kinetic data were analyzed by Piszkiewicz model of positive cooperativity. Linear Hill-type plots were generated with indices of cooperativity values greater than unity. The effect of counterions on the reaction rates was also studied in the presence of cationic surfactant (CTAB) and cationic-nonionic mixed surfactants (CTAB/TX-100).
引用
收藏
页码:1071 / 1076
页数:6
相关论文
共 50 条