Crystallization Kinetics of Zn(Val)SO4·H2O in Mixed Solvent of Water with Acetone

Abstract

Abstract: The optimum volume ratio of water to acetone for Zn(Val)SO₄·H₂O crystalling from the mixed solvent of water with acetone has been determined, which is 1∶10. The crystal growth process of the compound at 298.15 K is investigated by microcalorimetry. The experimental results show that it obeys the Burton-Cabrera-Frank dislocation theory. Moreover, the enthalpy of solution of Zn(Val)SO₄·H₂O in water has been measured at 298.15 K. The standard enthalpy of formation of Zn(Val) ²⁺(aq) has been calculated.

Key words: Zn(Val)SO₄·H₂O, Mixed solvent, Crystallization kinetics, Microcalorimetry, Enthalpy of solution

CLC Number:

O642.3

TrendMD:

GAO Sheng-Li, FANG Yan, HU Rong-Zu, CHEN San-Ping, SHI Qi-Zhen . Crystallization Kinetics of Zn(Val)SO₄·H₂O in Mixed Solvent of Water with Acetone[J]. Chem. J. Chinese Universities, 2003, 24(3): 381.

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Crystallization Kinetics of Zn(Val)SO₄·H₂O in Mixed Solvent of Water with Acetone

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