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9781503024373

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Basil Valentine is the Anglicised version of the name Basilius Valentinus. Basilius Valentinus was alleged to be a 15th-century alchemist, possibly Canon of the Benedictine Priory of Saint Peter in Erfurt, Germany. According to John Maxson Stillman, who wrote on the history of chemistry, there is no evidence of such a name on the rolls in Germany or Rome and no mention of this name before 1600.[2] His putative history, like his imaginary portrait, appears to be of later creation than the writings themselves. During the 18th century it was suggested that the author of the works attributed to Basil Valentine was Johann Tholde, a salt manufacturer in Germany who lived roughly 1565-1624, .[2][3] Modern scholarship now suggests that one author was Tholde, but that others were involved. Tholde published the first five books under Valentine's name.[4] Whoever he was, Basil Valentine had considerable chemical knowledge. He showed that ammonia could be obtained by the action of alkali on sal-ammoniac (ammonium chloride), described the production of hydrochloric acid by acidifying brine of common salt (sodium chloride), and created oil of vitriol (sulfuric acid), among other achievements.

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