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Copper(II) sulfate is an inorganic compound with the chemical formula Cu SO 4.It forms hydrates CuSO 4 ·nH 2 O, where n can range from 1 to 7. The pentahydrate (n = 5), a bright blue crystal, is the most commonly encountered hydrate of copper(II) sulfate, [10] while its anhydrous form is white. [11]
The following chart shows the solubility of various ionic compounds in water at 1 atm pressure and room temperature (approx. 25 °C, 298.15 K). "Soluble" means the ionic compound doesn't precipitate, while "slightly soluble" and "insoluble" mean that a solid will precipitate; "slightly soluble" compounds like calcium sulfate may require heat to precipitate.
Cuprous sulfate is produced by the reaction of copper metal with sulfuric acid at 200 °C: [3]. 2 Cu + 2 H 2 SO 4 → Cu 2 SO 4 + SO 2 + 2 H 2 O. Cu 2 SO 4 can also be synthesized by the action of dimethyl sulfate on cuprous oxide: [4]
Copper(I) sulfate, Cu 2 SO 4, an unstable white solid which is uncommonly used This page was last edited on 16 May 2024, at ...
Adding aqueous sodium hydroxide causes the precipitation of light blue solid copper(II) hydroxide. A simplified equation is: Pourbaix diagram for copper in uncomplexed media (anions other than OH − not considered). Ion concentration 0.001 m (mol/kg water). Temperature 25 °C. Cu 2+ + 2 OH − → Cu(OH) 2. Aqueous ammonia results in the same ...
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For example, an aqueous solution prepared from CuSO 4 ·5H 2 O and anhydrous CuSO 4 behave identically. Therefore, knowledge of the degree of hydration is important only for determining the equivalent weight: one mole of CuSO 4 ·5H 2 O weighs more than one mole of CuSO 4. In some cases, the degree of hydration can be critical to the resulting ...