... and refrigerators in cars, station wagons,etc... Molecular Sieve XH-9 is a highly porous, crystalline alkali metal alumino-silicate in ... [(AlO2)12(SiO2)12]. XH2O Recommended Applications Molecular Sieve XH-9 has been specially developed for use of refrigerant drying (e ... or attrition --High moisture adsorption Packaging Information Molecular sieve XH-9 is supplied in 55 gal. Steel drum of 180 kg ...