出典:Wiktionary
silica gel (countable かつ uncountable, 複数形 silica gels)
出典:Wikipedia
出典:『Wikipedia』 (2011/06/29 15:03 UTC 版)
Silica gel is a granular, vitreous, highly porous form of silica made synthetically from sodium silicate. Despite its name, silica gel is a solid. It is a naturally occurring mineral that is purified and processed into either granular or beaded form. As a desiccant, it has an average pore size of 2.4 nanometers and has a strong affinity for water molecules.