title: Kinetic study of the hydrolysis of 1-(4-nitrophenyl)-3-methyltriazene in aqueous solution and in the presence of surfactants.
abstract: The hydrolysis of 1-(4-nitrophenyl)-3-methyltriazene in aqueous solution has been studied over a pH range of 3-14. The effect of the anionic and cationic surfactants (sodium lauryl sulfate and hexadecyltrimethylammonium bromide) on the rate of hydrolysis was investigated. The quaternary ammonium bromide causes a rate decrease at all pH values studied, while sodium lauryl sulfate enhances the acid-catalyzed hydrolysis and decreases the observed rate constants in the pH-independent region. The results are discussed in terms of the current theory of micellar effects.
mesh_terms: D000077286:Cetrimonium; D002593:Cetrimonium Compounds; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D006868:Hydrolysis; D007700:Kinetics; D008823:Micelles; D012967:Sodium Dodecyl Sulfate; D013501:Surface-Active Agents; D014226:Triazenes
chemical_list: D002593:Cetrimonium Compounds; D008823:Micelles; D013501:Surface-Active Agents; D014226:Triazenes; D012967:Sodium Dodecyl Sulfate; C044599:1-(4-nitrophenyl)-3-methyltriazene; D000077286:Cetrimonium