An Acid Method for the Volumetric Estimation of Water-Soluble Dithiocarbamates

Abstract

Dithiocarbamates have been estimated previously by reaction with a strong acid, the carbon disulfide evolved being converted into a xanthate and the latter estimated iodimetrically. In the present method, a water-soluble dithiocarbamate is reacted with a decinormal mineral acid and the excess acid is determined to compute the amount of dithiocarbamate present. This method is applicable for the determination of a dithiocarbamate in a mixture containing thiuram disulfide.

Preparation, characterization and thermal studies on bis-[N-(ethyl,m-tolyl)-dithiocarbamato] complexes of zinc(II), cadmium(II) and mercury(II)

“…The ligand was estimated by the method of Shankaranarayana and Patel [12]. Zinc, cadmium, and mercury were estimated by standard methods [13].…”

Volumetric and Gravimetric Analytical Methods for Organic Compounds

“…Unclassified. Wa':er-soluble dithiocarbamates may be determined by reaction with a known amount of standard sulfuric acid, which is then back-titrated with sodium hydroxide (177).…”

N/P-ethoxyphenyl/dithiocarbamato complexes of Au(III), As(III), Fe(III), Co(III) and Mo(V)

“…The molybdenum(V) complex Mo203[S2CNH/p-OC2HsC6H4/]4 was prepared by adding an excess of sodium dithionate to an aqueous solution of Na2MoOa.2H20 (0.1 mole) and ligand (0.2 mole). The precipitated complex was filtered off, washed with distilled water and dried under vacuum over phosphorus pentoxide, yield: 68-76%.The ligand was estimated by the method of Shankaranarayana and Patel [5]. The metal, nitrogen and sulphur contents were estimated by standard gravimetric methods [6].…”