ELECTROCHEMISTRY AND REVERSE PULSE POLAROGRAPHIC DETERMINATION OF 1,2-DIBROMO-2,4-DICYANOBUTANE.

Article abstract of DOI:10.1021/ac00281a033

The electrochemical reduction of the antibacterial agent 1,2-dibromo-2,4-dicyanobutane (DBDCB, Tektamar) at mercury electrodes in actonitrile is investigated by a variety of techniques. Reverse pulse voltammetry shows that the stoichiometry of this two-electron reduction requires the liberation of two bromide ions and an organic product of composition C//6N//2H//6 per molecule of reactant. An electroanalytical method for the determination of DBDCB based on reverse pulse polarography is described and used to determine the solubility of DBDCB in water. The solubility of DBDCB in water calculated from five analyses is 0. 164% (standard deviation 0. 010%) for a 5-ms pulse time or 0. 158% (standard deviation 0. 004%) for a 50-ms pulse time.