Molecular formula: (NH4)2Mo4O13·2H2O Physical and chemical properties: White crystal,easy air slaking in the air, decomposition in the 150 degree c, slight soluble in water, insoluble in ethyl alcohol, bulk density 0.6-1.4g/cm. Applications: The catalyst of petroleum & manmade wool industry;fine catalyst & textile fire retardant , the material of photo,powder, smelting molybdenum, ceramic enamel, pigments, pharmacy Packing: 25/50kg in fiber drum /woven bag with inner double layers plastic bag. Quality Standard: Mo 56% min