Molding composition for molding property and process for producing sintered bodies of precious metal

Molding composition for molding of precious metals, consisting of a kneaded mixture of a mixed powder of noble metals as main components, 30 to 70% by weight of a powder having an average particle diameter in the range of 2.2 to 3.0 microns and 70 to 30% by weight is formed of a powder having an average particle diameter in the range of 5 to 20 microns comprising, and an aqueous solution of an organic binder.