CONCENTRATED CHLORINE DIOXIDE GAS SUPPORTING MATERIAL SUPPORTING CHLORINE DIOXIDE GAS OF HIGH CONCENTRATION, ENABLING VISUAL RECOGNITION OF RESIDUAL AMOUNT OF CHLORINE DIOXIDE GAS IN USE, WITH BEAUTIFUL APPEARANCE AND LONG-TERM STORAGE STABILITY AND ENABLING CONCENTRATION CONTROL IN USE, USE THEREOF AND METHOD FOR STORING THE SAME

PROBLEM TO BE SOLVED: To provide a method for developing, producing, using and storing a chlorine dioxide gas supporting material which can remove microorganisms, malodor and other chemical substances in a space and has excellent appearance, thereby provides a hitherto absent space-cleaning agent supporting chlorine dioxide gas having high concentration, stores the gas for a long time, releasing an arbitrary amount of the gas in use, and enables visual recognition of the residual amount of the chlorine dioxide gas in use. SOLUTION: The supporting material is produced by impregnating a sodium chlorite solution in a transparent silica gel having a pH of ≤6.0, drying under reduced pressure at ≤35°C, to prepare a silica gel capable of supporting concentrated chlorine dioxide gas, adding ≥1% of silica gel based on the weight of the supporting silica gel, sealing with a chlorine dioxide gas permeable film having one or more fine pores having a diameter of ≥0.3 nm and ≤100,000 nm, putting the product in a bag or a vessel having a carbon dioxide gas permeability of ≤10 mL/(m2×day/MPa) and a water vapor permeability of ≤5 g/(m2×day), evacuating to ≤100 torr, to heat seal the bag, etc. COPYRIGHT: (C)2011,JPO&INPIT