Smithson Tennant

…formed a cost-sharing partnership with Smithson Tennant, whom he had befriended at Cambridge, to produce and market chemical products. Although Tennant achieved only limited success in his independent endeavours, Wollaston was spectacularly successful. He set about trying to produce platinum in a pure malleable form, something that had been attempted…

…ores by the English chemist Smithson Tennant; the French chemists H.-V. Collet-Descotils, A.-F. Fourcroy, and N.-L. Vauquelin identified it at about the same time. The name iridium, derived from the Greek word iris (“rainbow”), refers to the various colours of its compounds. Natural iridium consists of a mixture of two…

The English chemist Smithson Tennant discovered the element together with iridium in the residues of platinum ores not soluble in aqua regia. He announced its isolation (1804) and named it for the unpleasant odour of some of its compounds (Greek osme, odour).

…claimed by the English chemist Smithson Tennant in 1803. The French chemists Hippolyte-Victor Collet-Descotils, Antoine-François Fourcroy, and Nicolas-Louis Vauquelin identified the two metals at about the same time. Ruthenium, the last element to be isolated and identified, was given a name based on the Latinized word for Russia by the…