Copper sulfate, also known as cupric sulfate, or copper sulfate, is the inorganic compound with the chemical formulaCuSO4(H2O)x, where x can range from 0 to 5. The pent hydrate (x = 5) is the most common form. Older names for this compound include blue vitriol, bluestone, vitriol of copper, and Roman vitriol.
The pent hydrate (CuSO4•5H2O), the most commonly encountered salt, is bright blue. It exothermically dissolves in water to give the aqua complex [Cu (H2O)6]2+, which has octahedral molecular geometry. The structure of the solid pent hydrate reveals a polymeric structure wherein copper is again octahedral but bound to four water legends. The Cu (H2O)4 centers are interconnected by sulfate anions to form chains.[12] Anhydrous copper sulfate is a white powder.
Preparation and occurrence:
Copper sulfate is produced industrially by treating copper metal with hot concentrated sulfuric acid or its oxides with dilute sulfuric acid. For laboratory use, copper sulfate is usually purchased. Copper sulfate can also be produced by slowly leaching low grade copper ore in air; bacteria may be used to hasten the process.
Commercial copper sulfate is usually about 98% pure copper sulfate, and may contain traces of water. Anhydrous Copper sulfate is 39.81 percent copper and 60.19 percent sulfate by mass, and in its blue, hydrous form, it is 25.47% copper, 38.47% sulfate (12.82% sulfur) and 36.06% water by mass. Four types of crystal size are provided based on its usage: large crystals (10–40 mm), small crystals (2–10 mm), snow crystals (less than 2 mm), and windswept powder (less than 0.15 mm).
Chemical properties:
Copper sulfate pent hydrate decomposes before melting. It loses two water molecules upon heating at 63 °C (145 °F), followed by two more at 109 °C (228 °F) and the final water molecule at 200 °C (392 °F).[14][15] Dehydration proceeds by decomposition of the tetraaqua copper(2+) moiety, two opposing aqua groups are lost to give a diaqua copper(2+) moiety. The second dehydration step occurs with the final two aqua groups are lost. Complete dehydration occurs when the only unbound water molecule is lost. At 650 °C (1,202 °F), copper sulfate decomposes into copper(II) oxide (CuO) and sulfur trioxide(SO3).
Dubichem chemicals international is a leading supplier, manufacturer and exporter of Copper sulfate in Dubai, Ajman, Abu Dubai, Sharjha, Fujairah, Turkey, Saudi Arabia, Qatar, Kuwait, united Arab emirates, omen, Iraq, Singapore, Malaysia, Indonesia, Lebanon, Greece, India, Sudan, Ghana, Madagascar, Kenya, Nigeria, Zimbabwe, at Dubichem@gmail.com and for more related products visit www.dubichem.com.
