Enthalpy of formation of natural hydrous copper sulfate: Chalcanthite. Bissengalieva, M., Ogorodova, L., Vigasina, M., Mel’chakova, L., Kosova, D., Bryzgalov, I., & Ksenofontov, D. Journal of Chemical Thermodynamics, 95:142–148, 2016.
doi  abstract   bibtex   
This paper presents the results of the thermochemical study of hydrous copper sulfate CuSO4·5H2O performed on a high-temperature heat-flux Tian–Calvet microcalorimeter. The samples of two natural chalcanthite (Kosmurun ore deposit, Kazakhstan, and Lavrion deposit, Greece) and synthetic hydrous copper sulfate (blue vitriol) were characterized by X-ray microprobe analysis, X-ray powder diffraction, thermal analysis, FTIR and Raman spectroscopy. The enthalpy of dehydration at T = 298.15 K was measured, and the standard molar enthalpies of formation from the elements were determined by the melt solution calorimetry in accordance with Hess’s law. The values of (T = 298.15 K) were found to be −(2267.2 ± 4.1) kJ⋅mol−1 for natural chalcanthite and −(2272.6 ± 6.0) kJ·mol−1 for synthetic hydrous copper sulfate (blue vitriol).
@article{bissengalieva_enthalpy_2016,
	title = {Enthalpy of formation of natural hydrous copper sulfate: {Chalcanthite}},
	volume = {95},
	issn = {0021-9614; 1096-3626},
	doi = {10.1016/j.jct.2015.12.010},
	abstract = {This paper presents the results of the thermochemical study of hydrous copper sulfate CuSO4·5H2O performed on a high-temperature heat-flux Tian–Calvet microcalorimeter. The samples of two natural chalcanthite (Kosmurun ore deposit, Kazakhstan, and Lavrion deposit, Greece) and synthetic hydrous copper sulfate (blue vitriol) were characterized by X-ray microprobe analysis, X-ray powder diffraction, thermal analysis, FTIR and Raman spectroscopy. The enthalpy of dehydration at T = 298.15 K was measured, and the standard molar enthalpies of formation from the elements were determined by the melt solution calorimetry in accordance with Hess’s law. The values of 
 (T = 298.15 K) were found to be −(2267.2 ± 4.1) kJ⋅mol−1 for natural chalcanthite and −(2272.6 ± 6.0) kJ·mol−1 for synthetic hydrous copper sulfate (blue vitriol).},
	language = {english},
	journal = {Journal of Chemical Thermodynamics},
	author = {Bissengalieva, M. and Ogorodova, L. and Vigasina, M. and Mel’chakova, L. and Kosova, D. and Bryzgalov, I. and Ksenofontov, D.},
	year = {2016},
	pages = {142--148}
}

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