Desheng 3A Molecular Sieve 3A molecular sieve is used for dryness of gas, liquid and dehydration of unsaturated hydrocarbons Desheng 3A Molecular Sieve3A molecular sieve as absorbent, zeolite molecular sieves, molecular sievesTypical Chemical ... .5-5 mm, (4x8 mesh) and as powder, and in pellet 1.6", 3.2". Please ask for separate data sheets ...