... silica gel 2.eco-friend,safe and no corrosivity 3.lower cost desiccant and adsorbentNatural and Eco-friend, no chlorine, no ... crystals contain uncertain quantities of Na+, Ca+, Fe3+ and Al, and present in the shape of needles, fibers or fibrous ... in dispersion, high temperature endurance, salt and alkali resistance, and also high adsorbing and de-coloring capabilities. Furthermore, attapulgite has ...