Blue Silica Gel Crystals have microscopic pores and are non-toxic in nature. Silica Gel Crystals are offered in granular form and can effectively prevent corrosion. Blue Silica Gel Crystals feature internal surface of about 800 Mz for every gm of material and the inner structure of each crystal attracts and holds hydrocarbon, chemicals and alcohols. Blue Silica Gel Crystals are non-deliquescent and work as high capacity adsorbent.