The catalytic activity of a series of iron oxides on the thermal decomposition of potassium chlorate was investigated by methods of thermal analysis. Structural and electronic defects were introduced into the oxide by doping, heat treatment in different atmospheres, and irradiation withγ-rays. These induced defects changed in a systematic way the conductive properties of the iron oxides and correspondingly, their catalytic activity. The results are consistent with ann-type semiconductive behavior of the oxides.

The catalytic effects of metal oxides on thermal decomposition reactions, III

The catalytic decomposition of potassium perchlorate

Sodium chlorate is the primary raw material for the manufacture of chlorine dioxide, a bleaching agent in the pulp and paper industry. Chlorine dioxide substitutes for chlorine in pulp bleaching, most ore of the sodium chlorate produced is used in the bleaching process. Sodium chlorate is prepared electrolytically. The modern technology described minimizes sodium chloride and sodium dichromate impurities. Chlorates are powerful oxidizers, and they are also used in perchloric salt and uranium production. They are strong irritants.



Chloric acid technologies have been developed which allow the generation of chlorine dioxide directly from the acid, without the formation of sodium salts in the generator.


Keywords:

Chloric acid;
sodium chlorate Potassium Chlorate Chlorates Bleaching agent;
pulp;
paper;
Roch palt;
chlorine dioxide

H. M. McLaughlin

Papers

The decomposition of potassium chlorate. iii. the effect of pressure on the decomposition of potassium chlorate-manganese dioxide mixtures1