... water ,oxide,acetic acid,alkali ect.Activated alumina defluorinates just as the anion exchange resin,but the selectivity is much strong ... for H2O2,also in the absorbing pollution material, such as H2S,SO2,HF and paraffin in the waste gas, ... and purifying agent.The following table information.HHA01 Is for as adsorbentHHA02Is for defluorinatingHHA03Is for absorption in producing hydrogen peroxide( ...