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欧博abgPalladium (Pd)

时间:2026-01-23 16:12来源: 作者:admin 点击: 0 次
Palladium is a chemical element of the periodic table with chemical symbol Pd and atomic number 46 with an atomic weight of 106.421 u and is classed a

Discovery and first isolation   William Hyde Wollaston (1802)  

Discovery of palladium

William Hyde Wollaston noted the discovery of a new noble metal in July 1802 in his lab book and named it palladium in August of the same year. Wollaston purified a quantity of the material and offered it, without naming the discoverer, in a small shop in Soho in April 1803. After harsh criticism from Richard Chenevix, who claimed that palladium was an alloy of platinum and mercury, Wollaston anonymously offered a reward of £20 for 20 grains of synthetic palladium alloy. Chenevix received the Copley Medal in 1803 after he published his experiments on palladium. Wollaston published the discovery of rhodium in 1804 and mentions some of his work on palladium. He disclosed that he was the discoverer of palladium in a publication in 1805. It was named by Wollaston in 1802 after the asteroid 2 Pallas, which had been discovered two months earlier.  

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