title: Determination of insoluble azides by thermometric titrimetry.
abstract: 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.
authors.affiliation: Instituto di Química, Universidade Estadual de Campinas, C.P. 1170, 13100 Campinas, São Paulo, Brazil.
authors.forename: A P
authors.initials: AP
authors.lastname: Chagas
authors.forename: O E
authors.initials: OE
authors.lastname: Godinho
authors.forename: J L
authors.initials: JL
authors.lastname: Costa