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sulfate - history & etymology hojja_nusreddin March 21 2015, 20:46:59 UTC
History
Some sulfates were known to alchemists:
- vitriol salts, from the Latin vitreolum, glassy, were so-called because they were some of the first transparent crystals known.
--- green vitriol is ferrous sulfate heptahydrate, FeSO4·7H2O;
--- blue vitriol is copper sulfate pentahydrate, CuSO4·5H2O
--- white vitriol is zinc sulfate heptahydrate, ZnSO4·7H2O.
- Alum, a double sulfate with the formula K2Al2(SO4)4·24H2O, figured in the development of the chemical industry.
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https://en.wikipedia.org/wiki/Sulfate#History
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Etymology
- sulfate (n.) - salt of sulfuric acid, 1790 (sulphat),
- from French sulphate (1787),
- from Modern Latin sulphatum acidum,
- from Latin sulpur, sulphur (see sulfur) + chemical ending -ate
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http://www.etymonline.com/index.php?term=sulfate

sulfur - sulphur, c.1300,
- from Anglo-French sulfere,
- Old French soufre "sulfur, fire and brimstone, hellfire" (13c.), later also sulphur,
- from Late Latin sulfur,
- from Latin sulphur, probably from a root meaning "to burn"
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http://www.etymonline.com/index.php?term=sulfur&allowed_in_frame=0

a Руми шпрехал по латыни :)

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