Chemistry:List of alchemical substances

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Alchemical studies produced a number of substances, which were later classified as particular chemical compounds or mixtures of compounds.

Many of these terms were in common use into the 20th century.

Metals and metalloids

Minerals, stones, and pigments

  • Luna cornea – silver chloride, formed by heating horn silver till it liquefies and then cooling.
  • Marcasite – a mineral; iron disulfide. In moist air it turns into green vitriol, FeSO4.
  • Massicot – lead monoxide. PbO
  • Litharge – lead monoxide, formed by fusing and powdering massicot.
  • Minium/Red Lead – trilead tetroxide, Pb3O4; formed by roasting litharge in air.
  • Naples yellow/Cassel yellow – oxychloride of lead, formed by heating litharge with sal ammoniac.
  • Mercurius praecipitatus – red mercuric oxide.
  • Mosaic gold – stannic sulfide, formed by heating a mixture of tin filings, sulfur, and sal-ammoniac.
  • Orpimentarsenic trisulfide, an ore of arsenic.
  • Pearl white – bismuth nitrate, BiNO3
  • Philosophers' Wool/nix alba (white snow)/Zinc White – zinc oxide, formed by burning zinc in air, used as a pigment
  • Plumbago – a mineral, graphite; not discovered in pure form until 1564
  • Powder of Algaroth – antimony oxychloride, formed by precipitation when a solution of butter of antimony and spirit of salt is poured into water.
  • Purple of Cassius – formed by precipitating a mixture of gold, stannous and stannic chlorides, with alkali. Used for glass coloring
  • Realgar – arsenic disulfide, an ore of arsenic.
  • Regulus of antimony
  • Resin of copper – copper(I) chloride (cuprous chloride), formed by heating copper with corrosive sublimate.
  • Rouge/Crocus/Colcothar – ferric oxide, formed by burning green vitriol in air.
  • Stibniteantimony or antimony trisulfide, ore of antimony.
  • Turpeth mineral – hydrolysed form of mercury(II) sulfate.
  • VerdigrisCarbonate of Copper or (more recently) copper(II) acetate. The carbonate is formed by weathering copper. The acetate is formed by vinegar acting on copper. One version was used as a green pigment.
  • White arsenic – arsenious oxide, formed by sublimating arsenical soot from the roasting ovens.
  • White leadcarbonate of lead, a toxic pigment, produced by corroding stacks of lead plates with dilute vinegar beneath a heap of moistened wood shavings. (replaced by blanc fixe & lithopone)
  • Venetian White – formed from equal parts of white lead and barium sulfate.
  • Zaffre – impure cobalt arsenate, formed after roasting cobalt ore.
  • Zinc Blende – zinc sulfide.

Salts

Vitriols

Waters, oils and spirits

  • Aqua fortis/spirit of nitre – nitric acid, formed by 2 parts saltpetre in 1 part (pure) oil of vitriol (sulfuric acid). (Historically, this process could not have been used, as 98% oil of vitriol was not available.)
  • Aqua ragia/Spirit of turpentine/Oil of turpentine/Gum turpentine – turpentine, formed by the distillation of pine tree resin.
  • Aqua regia (Latin: "royal water") – a mixture of aqua fortis and spirit of salt.
  • Aqua tofaniarsenic trioxide, As2O3 (extremely poisonous)
  • Aqua vitae/aqua vita/Spirit of Wine, ardent spirits – ethanol, formed by distilling wine[2]
  • Butter (or oil) of antimony – antimony trichloride. Formed by distilling roasted stibnite with corrosive sublimate, or dissolving stibnite in hot concentrated hydrochloric acid and distilling. SbCl3
  • Butter of tin – hydrated tin(IV) chloride; see also spiritus fumans, another chloride of tin.
  • Oil of tartar – concentrated potassium carbonate, K2CO3 solution
  • Oil of tartar per deliquium – potassium carbonate dissolved in the water which its extracts from the air.
  • Oil of vitriol/Spirit of vitriol – sulfuric acid, a weak version can be formed by heating green vitriol and blue vitriol. H2SO4
  • Spirit of box/Pyroxylic spirit – methanol, CH3OH, distilled wood alcohol.
  • Spiritus fumans – stannic chloride, formed by distilling tin with corrosive sublimate.
  • Spirit of hartshorn – ammonia, formed by the decomposition of sal-ammoniac by unslaked lime.
  • Spirit of salt/Acidum salis – the liquid form of hydrochloric acid (also called muriatic acid), formed by mixing common salt with oil of vitriol.

Others

  • Alkahest – universal solvent.
  • Azoth – initially this referred to a supposed universal solvent but later became another name for Mercury.
  • Bitumen – highly viscous liquid or semi-solid form of petroleum.
  • Blende
  • Brimstone – sulfur
  • Caustic potash/Caustic wood alkali – potassium hydroxide, formed by adding lime to potash
  • Caustic Soda/Caustic marine alkali – sodium hydroxide, NaOH, formed by adding lime to natron.
  • Caustic volatile alkali – ammonium hydroxide.
  • Corrosive sublimate – mercuric chloride, formed by subliming mercury, calcined green vitriol, common salt, and nitre.
  • Gum Arabic – gum from the acacia tree.
  • Liver of sulfur – formed by fusing[clarification needed] potash and sulfur.
  • Lunar caustic/lapis infernalissilver nitrate, formed by dissolving silver in aqua fortis and evaporating.
  • Lye – potash in a water solution, formed by leaching wood ashes.
  • Potashpotassium carbonate, formed by evaporating lye; also called salt of tartar. K2CO3
  • Pearlash – formed by baking potash in a kiln.

See also

References

  1. "Vitriol | chemical compound | Britannica". 18 August 2023. https://www.britannica.com/science/vitriol. 
  2. 2.0 2.1 Gray, Theodore (2014). Molecules. New York: Black Dog & Leventhal Publishers. pp. 27–31. ISBN 978-1-60376-396-7. 

External links