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- ..., PA |chapter = XII. Other Elements Isolated with the Aid of Potassium and Sodium: Beryllium, Boron, Silicon and Aluminium |isbn = 0-7661-3872-0}}</ref> ...he direct electrolysis of a molten mixture of [[beryllium fluoride]] and [[sodium fluoride]] by [[Paul Lebeau]] in 1898 yielded the first significant pure sa41 KB (5,890 words) - 21:34, 20 September 2010
