The first copperas factory in England was established at Queenborough in 1579, by Matthias Falconer, of Brabant.
Blue or Roman vitriol ' is copper sulphate; green vitriol, ferrous sulphate (copperas); white vitriol, zinc sulphate; and vitriol of Mars is a basic iron sulphate.
Ferrous sulphate, green vitriol or copperas, FeSO47H2O, was known to, and used by, the alchemists; it is mentioned in the writings of Agricola, and its preparation from iron and sulphuric acid occurs in the Tractatus chymico-philosophicus ascribed to Basil Valentine.
The first large-scale plant to produce copperas in England was in Parkstone, Poole, in around 1564.
copperas stone gathering was a common occupation for many of the local paupers and their children.
copperas industry is recorded in a letter written in 1569 by the Archbishop of Canterbury to Sir William Cecil.
copperas Point near Dell Key may have been a site for copperas production.
copperas beds in the late 1990s.
copperas manufacture was wholly unlike the traditional, small-scale chemical industries of the medieval and early modern period such as brewing and baking.
Copperas is hydrated ferrous sulfate, also known as green vitriol.
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