Nitrogen-based gas sustained-release agent, nitrogen-based gas sustained-release body comprising the same, and nitrogen-based gas sustained-release method using the sustained-release body, breathing apparatus, package and sustained-release device

摘要

(Project) A sustained-release agent for sustained-release of a nitrogen-based gas that has a nitrogen-based gas sustained-release property and can be safely handled at room temperature and air, a nitrogen-based gas sustained-release body comprising the same, and a sustained-release method of a nitrogen-based gas using the sustained-release body , to provide a breathing apparatus, a package and a device for sustained release of nitrogen-based gas. (Solution) Let the nitrogen-based gas sustained-release agent contain a layered double hydroxide in which nitrite ions (NO 2− ) and/or nitrate ions (NO 3− ) are included between layers. In addition, the nitrogen-based gas sustained-release agent composed of the sustained-release agent is exposed to a gas containing carbon dioxide or water vapor, and any one of sustained release of nitrous acid, self-decomposition of nitrous acid, oxidation/reduction of nitrous acid, reduction of nitrite ions/nitrate ions, or By causing the plurality of processes, the nitrogen-based gas is released slowly.