Here is a table showing some common old chemical names, their modern equivalents, and their chemical formulas:

Old Name Modern Name Chemical Formula
Aqua fortis Nitric acid HNO3
Oil of vitriol Sulfuric acid H2SO4
Muriatic acid Hydrochloric acid HCl
Spirit of hartshorn Ammonia NH3
Epsom salts Magnesium sulfate MgSO4
Quicklime Calcium oxide CaO
Milk of magnesia Magnesium hydroxide Mg(OH)2
Red lead Lead tetraoxide Pb3O4
Blue vitriol Copper sulfate CuSO4
Green vitriol Iron(II) sulfate FeSO4
Bicarbonate of soda Sodium bicarbonate NaHCO3
Caustic soda Sodium hydroxide NaOH
Spirits of salt Hydrochloric acid HCl
Marsh gas Methane CH4
Carbonate of magnesia Magnesium carbonate MgCO3
Lunar caustic Silver nitrate AgNO3
Oil of wintergreen Methyl salicylate C8H8O3
Vitriol of Mars Ferric sulfate Fe2(SO4)3
Alkali salts Sodium carbonate Na2CO3
Aqua ammonia Ammonium hydroxide NH4OH
Aqua regia Mixture of nitric and hydrochloric acids HNO3 and HCl
Calomel Mercury(I) chloride Hg2Cl2
Carbolic acid Phenol C6H5OH
Chalk Calcium carbonate CaCO3
Galena Lead sulfide PbS
Glauber’s salt Sodium sulfate Na2SO4
Horn silver Silver chloride AgCl
Lead acetate Lead(II) acetate Pb(CH3COO)2
Lime Calcium hydroxide Ca(OH)2
Potash Potassium carbonate K2CO3
Salt peter Potassium nitrate KNO3
Spelter Zinc Zn
Sugar of lead Lead(II) acetate Pb(CH3COO)2
Tartar emetic Potassium antimonyl tartrate K2C4H2O6Sb
White lead Lead(II) carbonate PbCO3
Zinc vitriol Zinc sulfate ZnSO4
Borax Sodium borate Na2B4O7
Black lead Graphite C
Calomel Mercurous chloride Hg2Cl2
Caustic potash Potassium hydroxide KOH
Celestine Strontium sulfate SrSO4
Chameleon mineral Potassium permanganate KMnO4
Copper pyrites Chalcopyrite CuFeS2
Ether Diethyl ether (C2H5)2O
Gypsum Calcium sulfate CaSO4
Heavy spar Barite BaSO4
Marble Calcium carbonate CaCO3
Native soda Sodium carbonate Na2CO3
Nitre Potassium nitrate KNO3



Submitted by :- Jamil Ahmed

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