Abstract: There are provided a bactericide diffusion apparatus and a bactericide diffusion method that have excellent design and make it possible to stably diffuse a bactericide. A bactericide diffusion apparatus includes: a bactericide containing chlorine dioxide; a first container housing the bactericide and having a first opening; and a second container housing the first container, having a second opening and being made of a ceramic. The first container includes a first portion defining the first opening, a second portion located below the first portion and having a diameter larger than that of the first opening, and a third portion located below the second portion and having a diameter larger than that of the second portion. The second container includes a main body portion housing the first container and having the second opening, and a lid portion fitted to the second opening. The lid portion has a hole for diffusing chlorine dioxide.

Abstract: In a method for generating a chlorine dioxide gas, the chlorine dioxide gas is continuously generated from a gel composition obtained by adding a gelling activator containing a gas generating agent, a gas generation controlling agent containing a carbonate and hydrogen peroxide, a gas generation adjusting agent, and a water-absorbent resin to a chlorite aqueous solution. This provides a method for generating a chlorine dioxide gas, a kit for generating a chlorine dioxide gas, and a gel composition which suppress the initial rapid generation of the chlorine dioxide gas and stably hold the generation of the chlorine dioxide gas for an extremely long time.

Abstract: The aqueous chlorine dioxide solution comprises chlorine dioxide, a potassium salt of a weak acid having a pKa of 2.5 or more, and a chlorite, and has a pH of 4.0 or more and 7.5 or less. The method for producing the aqueous chlorine dioxide solution comprises providing a first aqueous solution containing chlorine dioxide, mixing the first aqueous solution and a second aqueous solution containing a potassium salt of a weak acid having a pKa of 2.5 or more to prepare an intermediate aqueous solution having a pH of 4.0 or more and 7.5 or less, and mixing the intermediate aqueous solution and a third aqueous solution containing a chlorite, or mixing the intermediate aqueous solution and the third aqueous solution and then further adding the second aqueous solution thereto, to prepare an aqueous chlorine dioxide solution having a pH of 4.0 or more and 7.5 or less.

Abstract: In a method for generating a chlorine dioxide gas, the chlorine dioxide gas is continuously generated from a gel composition obtained by adding a gelling activator containing a gas generating agent, a gas generation controlling agent containing a carbonate and hydrogen peroxide, a gas generation adjusting agent, and a water-absorbent resin to a chlorite aqueous solution. This provides a method for generating a chlorine dioxide gas, a kit for generating a chlorine dioxide gas, and a gel composition which suppress the initial rapid generation of the chlorine dioxide gas and stably hold the generation of the chlorine dioxide gas for an extremely long time.

Abstract: A chlorine dioxide gas generating agent pack includes a chlorine dioxide gas generating agent containing a mixture of chlorite powder, gas generation control agent powder, moisture-absorbent powder, water-absorbent resin powder, and activating agent powder; and a gas-permeable film container permeable to water vapor and chlorine dioxide gas and containing the chlorine dioxide gas generating agent. This chlorine dioxide gas generating agent pack is suitable for being carried to a region where sterilization, disinfection and deodorization are required.

Abstract: A chlorine dioxide gas generating agent pack includes a chlorine dioxide gas generating agent containing a mixture of chlorite powder, gas generation control agent powder, moisture-absorbent powder, water-absorbent resin powder, and activating agent powder; and a gas-permeable film container permeable to water vapor and chlorine dioxide gas and containing the chlorine dioxide gas generating agent. This chlorine dioxide gas generating agent pack is suitable for being carried to a region where sterilization, disinfection and deodorization are required.