THE EFFECT OF VAT DYES ON THE RATE OF OXIDATION OF COTTON BY HYPOCHLORITE SOLUTIONS.

The article features the effect of vat dyes on the rate of oxidation of cotton by hypochlorite solutions. The rate of oxidation of cotton cellulose by a dilute hypochlorite solution at a constant temperature is determined, not only by the concentration of the oxidant, but also by the following factors: the pH of the solution; the presence of substances that catalyse, or induce, the hypochlorite oxidation of cellulose; the illumination of the system; the presence of colored substances, particularly certain vat dyes that affect the rate of photochemical oxidation under constant conditions of illumination.