... quality Molecular Sieve 13X with competitive price. Commonly used to seperate nitrogen from oxygen. 13X Molecular sieve ... (0.9nm) and excludes larger molecules.Which mainly used as catalyze carrier ,coadsorption of CO2 and H2O and ... H2O , H2O and H2S ,as desiccant for medical and air compressor systems ,and ... mm, (10x18 mesh) 2-3 mm, (8x12 mesh) , 2.5-5 mm, (4x8 mesh) and as powder, and in ...