... : glass-like. Chemical molecular formula: SiO2.nH2O. Fast adsorption Product Name Silica Gel for Variable-Pressure AdsorptionCharacteristics Color: transparent or translucent, glass ... -likeChemical molecular formula: SiO2.nH2OFast adsorption, quick deadsorptonChemically stable, Nontoxic, tasteless, Similar to fine-pored silica gelIts selective adsorptive capability is ...