The hydrlysis of 1-(4-nitrophenyl)-3-methyltriazence in 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.
Kinetic study of the hydrolysis of 1-(4-nitrophenyl)-3-methyltriazene in aqueous solution and in the presence of surfactants / Ebert, Cynthia; Lassiani, Lucia; Linda, Paolo; M., Lovrecich; Nisi, Carlo; Rubessa, Fulvio. - In: JOURNAL OF PHARMACEUTICAL SCIENCES. - ISSN 1520-6017. - STAMPA. - 73:(1984), pp. 1691-1694. [10.1002/jps.2600731206]
Kinetic study of the hydrolysis of 1-(4-nitrophenyl)-3-methyltriazene in aqueous solution and in the presence of surfactants
EBERT, CYNTHIA;LASSIANI, LUCIA;LINDA, PAOLO;NISI, CARLO;RUBESSA, FULVIO
1984-01-01
Abstract
The hydrlysis of 1-(4-nitrophenyl)-3-methyltriazence in 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.Pubblicazioni consigliate
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
