| Ammonium Chloriridite, (NH4)3IrCl6.Aq., prepared either by reduction of ammonium chloriridate or by decomposing the sodium salt with concentrated ammonium chloride solution, yields dark, olive-green, orthorhombic prisms, which readily dissolve in water. It is probably the monohydrate, (NH4)3IrCl6.H2O. Upon ignition, metallic iridium alone remains, in spongy form. The decomposition begins to be appreciable just above 200° C. |