Platinum Metals Review - Volume 16, Issue 4, 1972

This review summarises some of the chemistry of the platinum metal fluorides and outlines the part they have played in developments in inorganic chemistry. A number of new compounds in this field have been identified only recently for the first time.

The successful development of Johnson Matthey Metals palladium alloy diffusion units for the production of ultra-high purity hydrogen is largely dependent on comprehensive testing of all units before they are released to customers. This article describes the test procedures and the equipment used in testing.

The 50 atomic per cent cobalt platinum alloy continues to hold a special place as an outstanding permanent magnet material and to receive considerable scientific study. It is suggested that much remains to be done before its properties can be fully understood and some reasonable models for study are proposed. Technological development could improve its properties still further and the implications of this with respect to specialised applications are discussed.

The four-yearly International Congress on Catalysis provides a welcome opportunity to review the state of the art and to exchange ideas and experiences. A review of the papers relevant to the platinum metals is given in this article.