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Chemical Laboratories, Apparatus, 1850-1949 Toepler pump used by Ramsay, late 19th century

Chemical Laboratories, Apparatus, 1850-1949 Toepler pump used by Ramsay, late 19th century
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Image number
UIS5064984
Image title
Chemical Laboratories, Apparatus, 1850-1949 Toepler pump used by Ramsay, late 19th century
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Unknown
Location
Science Museum, London, UK
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object
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Chemical Laboratories, Apparatus, 1850-1949 Toepler pump used by Ramsay, late 19th century. This Toepler pump was used by Scottish chemist Sir William Ramsay (1852-1916) to remove air during his researches leading to the discovery of the rare (noble) gases of the atmosphere. In collaboration with Lord Rayleigh, Ramsay discovered argon in 1895, and this led swiftly to the discovery of helium, neon, krypton, xenon and finally radon. The discovery of these previously unknown gases added a whole new eighth column to the periodic table of the elements. For this work Ramsay and Rayleigh were awarded the Nobel prize for chemistry in 1904. ©SSPL/Science Museum

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