Thermogravimetry of Basic Copper Sulphate Obtained by Titrating NaOH Solution With CuSO4 Solution | Forum

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weishida Dec 21 '18

The titration reaction of an NaOH solution with a copper(II) sulphate solution occurred in two steps. The first-stage precipitate, Cu(OH)2 and/or CuO, formed above pH 7, reacted with free SO42? ions and excess CuSO4 in solution to give Basic Copper Sulphate(WSDTY) such as synthetic brochantite. The reaction with excess CuSO4 was confirmed by titrating Cu(OH)2 and CuO powders suspended in water with a copper(II) sulphate solution. These products were analysed by thermogravimetry as well as chemical methods and IR spectroscopy.

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