RESEARCH ON EQUILIBRIUM OF THE COMPLEXING REACTION OF МО (VI) WITH SOME CARBOXYLIC AND OXY ACIDS BY KINETIC METHODS
On decrease in the catalytic activity of Mo(VI) in the reaction of oxidization of iodide by hydrogen peroxide with the use of amperometric recording of its speed the equilibrium constants of complexing reactions of Mo(VI) with oxalic, malonic, citric and tartaric acids are found by two methods. The method of fixed time gives the following respective values: (3,3 ± 0,2)∙10 3; (1,8 ± 0,4)∙10 3; (2,1 ± 0,3)∙10 3; (3,1 ± 0,3)∙10 2 and the method of fixed concentration, for the same acids — (7,0 ± 0,5)∙10 3; (3,2 ± 0,3)∙10 3; (1,1 ± 0,2)∙10 3; (2,5 ± 0,2)∙10 2.