ʻO ka silica gel desiccant kahi mea adsorption ikaika loa, ka mea maʻamau i hoʻomākaukau ʻia e ka hoʻopili ʻana i ka sodium silicate me ka sulfuric acid, ka ʻelemakule, ka waiʻawaʻawa a me ke ʻano o nā kaʻina hana ma hope o ka mālama ʻana. ʻO ka silica gel kahi mea amorphous, a ʻo kāna ʻano kemika he mSiO2. nH2O. ʻAʻole hiki ke hoʻoheheʻe ʻia i loko o ka wai a me nā mea hoʻoheheʻe, ʻaʻohe mea ʻawaʻawa a ʻono ʻole, me nā waiwai kemika paʻa, ʻaʻole e hoʻopili me kekahi mea koe wale nō ke kumu ikaika a me ka waika hydrofluoric. ʻO ka hoʻohui kemika a me ke ʻano kino o ka silica gel e hoʻoholo ai he mau hiʻohiʻona i paʻakikī ke hoʻololi i nā mea like ʻē aʻe. Loaʻa i ka silica gel desiccant ka hana adsorption kiʻekiʻe, ke kūpaʻa wela maikaʻi, nā waiwai paʻa paʻa, ka ikaika mechanical kiʻekiʻe, etc.
