Copper(II) Sulfate Pentahydrate 99%

  • $4.68

Copper(II) sulfate, also known as cupric sulfate, or copper sulphate, is the inorganic compoundwith the chemical formulaCuSO4(H2O)x, where x can range from 0 to 5. The pentahydrate (x = 5) is the most common form. The pentahydrate (CuSO4·5H2O), the most commonly encountered salt, is bright blue. It exothermicallydissolves in water to give the aquo complex[Cu(H2O)6]2+, which has octahedral molecular geometry. The structure of the solid pentahydrate reveals a polymeric structure wherein copper is again octahedral but bound to four water ligands. 

CuSO4 (anhydrous)
CuSO4·5H2O (pentahydrate)
Molar mass 159.609 g/mol (anhydrous)[1]
249.685 g/mol (pentahydrate)[1]
Appearance gray-white (anhydrous)
blue (pentahydrate)
Density 3.60 g/cm3 (anhydrous)[1]
2.286 g/cm3 (pentahydrate)[1]
Melting point 110 °C (230 °F; 383 K) decomposes (·5H2O)[1]
<560 °C decomposes[1]
1.055 molal (10 °C)
1.26 molal (20 °C)
1.502 molal (30 °C)[2]
Solubility anhydrous
insoluble in ethanol[1]
soluble in methanol[1]
10.4 g/L (18 °C)
insoluble in ethanol, insoluble in acetone

+1330·10−6 cm3/mol