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oa Is Osmium Always the Densest Metal?
A comparison of the densities of iridium and osmium
- Source: Johnson Matthey Technology Review, Volume 58, Issue 3, Jul 2014, p. 137 - 141
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- 01 Jan 2014
Abstract
Having established that osmium is the densest metal at room temperature the question arises as to whether it is always the densest metal. It is shown here that at ambient pressure osmium is the densest metal at all temperatures, although there is an ambiguity below 150 K. At room temperature iridium becomes the densest metal above a pressure of 2.98 GPa, at which point the densities of the two metals are equal at 22,750 kg m–3.
© Johnson Matthey