Platinum Metals Review - Volume 3, Issue 3, 1959

The platinum resistance thermometer is a versatile instrument for temperature measurement in the range from — 200° to 1000°C. It is used both for precision measurements of the highest accuracy and for routine industrial work. This article discusses the development and construction of resistance thermometers and their uses in a wide range of industries.

Under the sponsorship of the International Union of Pure and Applied Chemistry, an International Conference on Co-ordination Chemistry was held in London from April 6th to the 11th. The very great interest in the chemistry of the platinum group metals was clearly demonstrated by the number of papers submitted to the Conference dealing with the co-ordination chemistry of this group of elements.

A vast composite body of plutonic and volcanic rocks in the central part of the Transvaal, the Bushveld igneous complex includes the platinum reef worked by Rustenburg Platinum Mines Limited and constituting the world’s greatest reserve of the platinum metals. This article describes the geological and economic aspects of this unusually interesting formation.

In the first part of their article, published in the April issue of ‘Platinum Metals Review’, the authors summarised the general basis of their method of treatment, based on thermodynamic equations, of electrochemical phenomena, and then described the characteristics of platinum from this point of view. In this concluding part of their article they deal with the electrochemical properties of other platinum group metals