Determination of insoluble azides by thermometric titrimetry.
A method for determination of azide, based on the thermometric titration of this anion with hydrochloric acid, is described. Although this reaction has a large enthalpy change (DeltaH = -3.6 kcal/ mole), sulphate is added as an endothermic thermometric indicator to improve the end-point. The application of the method to the analysis of insoluble azides has been studied.
Chagas
A P
AP
Instituto di Química, Universidade Estadual de Campinas, C.P. 1170, 13100 Campinas, São Paulo, Brazil.
Godinho
O E
OE
Costa
J L
JL