ʻO ka silica gel desiccant kahi mea adsorption ikaika loa, kahi i hoʻomākaukau pinepine ʻia ma ka hoʻopili ʻana i ka sodium silicate me ka sulfuric acid, ka ʻelemakule, ka pehu waikawa a me kahi moʻo o nā kaʻina hana ma hope o ka mālama ʻana. He mea amorphous ka silica gel, a ʻo kona ʻano kemika he mSiO2. nH2O. He mea hoʻoheheʻe ʻole ia i ka wai a me kekahi mea hoʻoheheʻe, ʻaʻohe mea ʻawaʻawa a ʻono ʻole, me nā waiwai kemika paʻa, a ʻaʻole pane me kekahi mea koe wale nō ke kumu ikaika a me ka waikawa hydrofluoric. ʻO ka hoʻohuihui kemika a me ke ʻano kino o ka silica gel e hoʻoholo ai he mau ʻano ia e paʻakikī ai ke pani i nā mea like ʻē aʻe he nui. Loaʻa i ka silica gel desiccant ka hana adsorption kiʻekiʻe, ke kūpaʻa wela maikaʻi, nā waiwai kemika paʻa, ka ikaika mechanical kiʻekiʻe, a pēlā aku.
