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William Hyde Wollaston FRS (/ ˈ w ʊ l ə s t ən /; 6 August 1766 – 22 December 1828) was an English chemist and physicist who is famous for discovering the chemical elements palladium and rhodium.
Wollaston found palladium in crude platinum ore from South America by dissolving the ore in aqua regia, neutralizing the solution with sodium hydroxide, and precipitating platinum as ammonium chloroplatinate with ammonium chloride. He added mercuric cyanide to form the compound palladium(II) cyanide, which was heated to extract palladium metal ...
Henry Cavendish, an admirer of Wollaston, was the sole Society objector in the vote for the publication. [3] Later that year, Wollaston publicly revealed his authorship (although he had communicated as much to the Royal Society before Chenevix's second paper) [3] and details of how he had, correctly, isolated the element palladium. Chenevix ...
Palladium was in a residue left behind after platinum was precipitated out of a solution of hydrochloric acid and nitric acid as (NH 4)PtCl 6. [12] Wollaston named it after the recently discovered asteroid 2 Pallas and anonymously sold small samples of the metal to a shop, which advertised it as a "new noble metal" called "Palladium, or New ...
The Wollaston Medal is a scientific award for geology, the highest award granted by the Geological Society of London. The medal is named after William Hyde Wollaston , and was first awarded in 1831. It was originally made of gold (1831–1845), then palladium , a metal discovered by Wollaston (1846–1860).
Palladium is a chemical element with the chemical symbol Pd and an atomic number of 46. It is a rare and lustrous silvery-white metal discovered in 1803 by William Hyde Wollaston . He named it after the asteroid Pallas , which was itself named after the epithet of the Greek goddess Athena , acquired by her when she slew Pallas .
William Hyde Wollaston. Rhodium (from Greek: ῥόδον rhodon, meaning 'rose') was discovered in 1803 by William Hyde Wollaston, [11] soon after he discovered palladium. [12] [13] [14] He used crude platinum ore presumably obtained from South America. [15] His procedure dissolved the ore in aqua regia and neutralized the acid with sodium ...
William Hyde Wollaston. Rhodium was discovered in 1803 by William Hyde Wollaston, [7] soon after he discovered palladium. [8] [9] [10] He used crude platinum ore presumably obtained from South America. [11] His procedure dissolved the ore in aqua regia and neutralized the acid with sodium hydroxide (NaOH).