Melting point °Cd ec.) density 3.07 g/mL at 25 °C(lit.) form Powder color Yellow Specific Gravity 3.065 Water Solubility Slightly soluble in water. Insoluble in alcohol, ether and concentrated hydrochloric acid. RIDADR UN 3288 6.1/PG 3 Uses Platinum plating; manufacture of spongy platinum.