Copper is a chemical element with the symbol Cu (from Latin: cuprum) and the atomic number of 29. It is easily recognisable, due to its distinct red-orange color. Copper also has a range of different organic and inorganic salts, having varying oxidation states ranging from (0,I) to (III). These salts (mostly the (II) salts) are often blue to green in color, rather than the orange color copper is known for. Despite being considered a semi-noble metal, copper is one of the most common salt-forming transition metals, along with iron.
Copper(0,I) salts +NameChemical FormulaAnionImageCopper silicideSilicide (silane)
Copper(I) salts +NameChemical FormulaAnionImageCopper(I) oxideCu2OOxide (oxygen)Copper(I) chlorideCuClChloride (hydrochloric acid)Copper(I) iodideCuIIodide (hydroiodic acid)Copper(I) cyanideCuCNCyanide (hydrocyanic acid)Copper(I) thiocyanateCuSCNThiocyanate (thiocyanic acid)Copper(I) sulfateCu2SO4Sulfate (sulfuric acid)Copper(I) sulfideCu2SSulfide (hydrogen sulfide)Copper(I) acetylideCu2C2Acetylide (acetylene)Copper(I) bromideCuBrBromide (hydrobromic acid)Copper(I) fluorideCuFFluoride (hydrofluoric acid)Copper(I) hydroxideCuOHHydroxide (water)Copper(I) hydrideCuHHydride (hydrogen gas)Copper(I) nitrateCuNO3 Nitrate (nitric acid)Copper(I) phosphideCu3P Phosphide (phosphine)Copper(I) thiophene-2-carboxylateC5H3CuO2Sthiophene-2-carboxylate (thiophene-2-carboxylic acid)Copper(I) t-butoxideC16H36Cu4O4t-butoxide (t-butyl alcohol)Copper tetraiodomercurate(II)Tetraiodomercurate(II)
Copper(II) salts +NameChemical FormulaAnionImageCopper(II) sulfateCuSO4Sulfate (sulfuric acid)Copper(II) chlorideCuCl2Chloride (hydrochloric acid)Copper(II) hydroxideCu(OH)2Hydroxide (water)Copper(II) nitrateCu(NO3)2Nitrate (nitric acid)Copper(II) oxideCuOOxide (oxygen)Copper(II) acetateCu(OAc)2Acetate (acetic acid)Copper(II) fluorideCuF2Fluoride (hydrofluoric acid)Copper(II) bromideCuBr2Bromide (bromine)Copper(II) carbonateCuCO3Carbonate (carbonic acid)Copper(II) carbonate hydroxideCu2CO3(OH)2Hydroxide (water)
Carbonate (carbonic acid)Copper(II) chlorateCu(ClO3)2Chlorate (chloric acid)Copper(II) arsenateCu3(AsO4)2Arsenate (arsenic acid)Copper(II) azideCu(N3)2Azide (hydrazoic acid)Copper(II) acetylacetonateCu(O2C5H7)2Acetylacetonate (acetylacetone)Copper(II) aspirinateC36H28Cu2O16Acetylsalicylate (acetylsalicylic acid)Copper(II) cyanurateCuC3HN3O3Cyanurate (cyanuric acid)Copper(II) glycinateCu(H2NCH2CO2)2Glycinate (glycine)Copper(II) phosphateCu3(PO4)2Phosphate (phosphoric acid)Copper(II) perchlorateCu(ClO4)2Perchlorate (perchloric acid)Copper(II) seleniteCuSeO3Selenite (selenous acid)Copper(II) sulfideCuSSulfide (hydrogen sulfide)Copper(II) thiocyanateCu(SCN)2Thiocyanate (thiocyanic acid)Copper(II) triflateCu(OSO2CF3)2Triflate (triflic acid)Copper(II) tetrafluoroborateCu(BF4)2Tetrafluoroborate (tetrafluoroboric acid)Copper(II) acetate triarsenite (Paris Green)Cu(C2H3O2)2·3Cu(AsO2)2Acetate (acetic acid) Triarsenite (1,3,5,2,4,6-Trioxatriarsinane-2,4,6-triol)Copper(II) benzoateCu(C6H5CO2)2Benzoate (benzoic acid)Copper(II) arsenite (Scheele's Green)Arsenite (Arsenous acid)Copper(II) chromiteCu2Cr2O5Chromite (chromic acid)Copper(II) gluconateC12H22CuO14Gluconate (gluconic acid)Copper(II) peroxideCuO2Peroxide (hydrogen peroxide)Copper(II) usnateC18H14CuO7Usnate (usnic acid)Copper(II) oxychlorideHydroxide and chlorideCopper(II) naproxenC28H26CuO6naproxen Copper(II) ibuprofenateC52H68Cu2O8Ibuprofenate (ibuprofen)
Copper(I, II) salts +NameChemical FormulaAnionImagecopper(I,II) sulfite dihydrate (Chevreul's salt)Cu3(SO3)2·2H2OSulfite (Sulfurous acid)
See also
List of organic salts List of inorganic compounds