Francis William Aston born 1877: mass spectrograph and isotopes ; Nobel Prize, 1922
Vladimir Haensel born 1914: platinum reforming catalysts in petroleum industry .
B. Smith Hopkins born 1873: rare earths
Karl August Folkers born 1906: isolation of vitamin B12 (whose deficiency brings on pernicious anemia); structure and synthesis of coenzyme Q10
Rohm & Haas founded 1909
Carl Auer von Welsbach born 1858: rare earths; discoverer of neodymium (Nd, element 60) and praseodymium (Pr, 59); co-discoverer of lutetium (Lu, 71).
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