Iridium Arsenide, IrAs₂

Iridium Arsenide, IrAs₂, has been obtained in a pure form by heating iridium chloride with an excess of arsenic in a current of hydrogen. It is also formed when an intimate mixture of the finely divided metal and excess of arsenic is heated in an indifferent atmosphere. The arsenide may be analysed by the method described under palladium arsenide.