... surface, huge machinery strength, strong hygroscopicity, after absorbing water it can keep original shape , non-poisonous, , ... , arsenic removal, wastewater decolorization, deodorization of drinking water and industrial devices.Smaller particle size allows a larger ... (Na2O,%)Max 1.09Water absorption rate(%) Min 5010Aluminium oxide content(Al2O3) Max 9211Static state absorption capacity%(RH=60%) Min ...