With sufficient heating, the blue colored hydrated copper sulfate crystals common at standard temperature and pressure will lose their water of hydration and lose their blue color. With further heating, the anhydrous crystals will melt.
The formula of the blue crystals of copper sulphate is CuSO4.5H2O. When they are heated mildly, the water from the crystals evaporate, giving just CuSO4. This 'anhydrous' form of copper (II) sulphate is white in colour.
Copper sulphate pentahydrate loses water of crystallisation and becomes white amorphous anhydrous copper sulphate.
The color of crystals will change after heating because of loss of water..
blue
synthesis of coppersulfhydryloxalate
The formula of the blue crystals of copper sulphate is CuSO4.5H2O. When they are heated mildly, the water from the crystals evaporate, giving just CuSO4. This 'anhydrous' form of copper (II) sulphate is white in colour.
Copper Sulphate usually is found in a hydrated form (i.e., water molecules are incorporated into the crystals.) Pure copper sulphate is a pale, greenish gray color. The familiar blue color only occurs in hydrates of copper sulphate (i.e., in crystals that incorporate H20 molecules). Heating the blue crystals can drive off the water. It's still called copper sulphate after you do that. For substances like copper sulphate that naturally attract water, the adjective, anhydrous often is used to describe the pure (water free) state. If you heat copper sulphate to a temperature of 650C, it will decompose into something else. http://en.wikipedia.org/wiki/Copper_sulphate
Copper sulphate pentahydrate loses water of crystallisation and becomes white amorphous anhydrous copper sulphate.
they dissolve or dilute
The color of crystals will change after heating because of loss of water..
blue
synthesis of coppersulfhydryloxalate
when blue Copper sulphate is heated, it loses its water part of crystallisation and tuns into white, anhydrous copper sulphate crystal
It makes copper sulphate + water :)
The reaction is;CuSO4 = CuO + SO3
It turns into a white powder and when water is then again added to the deydrated copper sulphate it turns back to its original colour
It turns into blueish clear crystals but only if u don't have a lid on it when it is heated!add. as it is heated, the water of crystallization will be driven off, and soon you'll have a greenish powder.