title: Redox reactions in non-aqueous media: determination of organic isothiocyanates alone, in formulations and in important mixtures.
abstract: A simple potentiometric method for the determination of organoisothiocyanates is described. The isothiocyanate is treated in acetonitrile medium with an excess of primary amine to convert it into a substituted thiourea and the surplus amine is converted into a dithiocarbamate by addition of carbon disulphide. The solution is then titrated with a copper(II) solution in acetonitrile. The three-step titration curve enables the results to be calculated on the bash of the dithiocarbamate and/or thiourea formed. The method has been successfully applied to the analysis of a commercial insecticide formulation based on isothiocyanate and important mixtures containing isothiocyanates.
authors.affiliation: Department of Chemistry, Himachal Pradesh University, Summer Hill, Shimla 171005, India.
authors.forename: B C
authors.initials: BC
authors.lastname: Verma
authors.forename: S B
authors.initials: SB
authors.lastname: Kalia
authors.forename: V S
authors.initials: VS
authors.lastname: Jamwal
authors.forename: S
authors.initials: S
authors.lastname: Kumar
authors.forename: D K
authors.initials: DK
authors.lastname: Sharma
authors.forename: A
authors.initials: A
authors.lastname: Sud