THE OPTIMIZATION OF ZINC DIALKYLDI-THIOCARBAMATES SYNTHESIS AND DETERMINATION OF THEIR ANTIOXIDANT ACTIVITY

• Main Authors: Aleksandar D. Marinković, Milutin Milosavljević, Dragan Milenković, Goran Ivanović
• Format: Article
• Language: English
• Published: Association of the Chemical Engineers of Serbia 2008-11-01
• Series: Chemical Industry and Chemical Engineering Quarterly
• Subjects: zinc dialkyldithicarbamates; optimization; inhibition rate constant
• Online Access: http://www.ache.org.rs/CICEQ/2008/No4/10_3022_2008.pdf

A two-step optimized laboratory synthetic method of zinc dialkyldithiocarbamates is presented. In the course of the first phase, a sodium salt of dialkyldithiocarbamic acid has been synthesized from the dialkylamines, carbon disulfide and sodium hydroxide. The synthesis of zinc dialkyldithiocarbamates was achieved by the precipitation from sodium dialkyldithiocarbamic acid by zinc sulfate under the optimized conditions. The synthesized products have been characterized by FTIR, 1H and 13C NMR, AAS spectroscopic methods, as well as by elemental analysis and melting points. Kinetic studies of the motor oil oxidation inhibited by synthesized compounds have been tested using a standard method.