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The Calculation of Physicochemical Parameters in the Mimetite Dissolving Process

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Abstract:

Solubility of the artificial synthesis Pb(AsO_4 )_3 Cl was studied at different pH and same temperature to get its solubility product Pb(AsO_4 )_3 Cl and formation free energy (∆G_f^0). The results showed that the solubility and stability of Pb(AsO_4 )_3 Cl were related to pH in the same temperature. The solubility of Pb(AsO_4 )_3 Cl was high in acidic environment (initial pH=2) and in initial pH=4,6 conditions its solubility as near as makes no difference. The ∆G_f^0 increased with increasing temperature.

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Periodical:

Advanced Materials Research (Volumes 860-863)

Pages:

1035-1039

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.860-863.1035

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Online since:

December 2013

Authors:

Shuang Cao, Zong Lan Zhang, Liu Qin Dai, Yi Nian Zhu, Zong Qiang Zhu*, Liang Liang Tan, Cai Chun Wei

Keywords:

Free Energy of Formation, Mimetite, pH Value, Solubility

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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