... 3 Å): Adsorbs NH3, H2O, (not C2H6), good for drying polar liquids.4A (pore size 4 Å): Adsorbs H2O, CO2, SO2, H2S, C2H4, C2H6 ... , C3H6, EtOH. Will not adsorb C3H8 and higher hydrocarbons. Good for drying ... 0.6023-240.3-0.5Absorbent for removal of thioalcohol in aviation kerosen and the liquid hydrocarbon Package can meet individrual requirements 2.0 to 2 ...