abstract |
An object of the present invention is to provide a moisture absorbing / releasing material having a high moisture absorption rate and moisture releasing rate, almost no shape change due to moisture absorption / release, and close to a spherical shape and excellent in fluidity as a powder. To do. A moisture absorbing / releasing material comprising porous particles having a number average particle diameter of 1 to 30 μm and a BET specific surface area of 100 to 80,000 m 2 / kg. [Selection] Figure 1 |