... 3-5mm,4-6mm 4.shape: ball Insoluable in water Activated Alumina Adsorbent Activated alumina has much micro ... as H2S, SO2, HF and paraffin in the water gas, especially in the drinking water defluorination.Molecular Formula: Al2O3 • nH2O ( ... ) Physical Properties KA401KA402KA403KA404KA405AppearanceWhite, Sphere, No Odor, Insoluble In Water, InnocuousCrystal Typex-px-pyyx-pChemical CompositionAl2O3 %≥93≥93 ...