Patent ID: 6699404
Filing Date: 2004-03-02
Classification: A01N,C01B

Abstract:
A massive body comprising a metal chlorite, an acid source and a source of free halogen, said massive body being such that when it is added to liquid water, it sustains a pore structure that will produce a solution of chlorine dioxide and free halogen, the concentration of free halogen in said solution being:(a) less than the concentration of chlorine dioxide in said solution on a weight basis and the ratio of the concentration of chlorine dioxide to the sum of the concentrations of chlorine dioxide and chlorite anion in said solution is at least 0.25:1 by weight; or (b) equal to or greater than the concentration of chlorine dioxide in said solution on a weight basis and the ratio of the concentration of chlorine dioxide to the sum of the concentrations of chlorine dioxide and chlorite anion in said solution is at least 0.50:1 by weight.