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Citation: Zhang Youmin, Zhao Xinsheng. STUDY OF SOLVATION OF MONATOMIC IONS
Ⅰ. PARTIAL MOLAL VOLUME AND SOLVATION NUMBER[J]. Acta Physico-Chimica Sinica, ;1985, 1(04): 308-317. doi: 10.3866/PKU.WHXB19850403 shu

STUDY OF SOLVATION OF MONATOMIC IONS
Ⅰ. PARTIAL MOLAL VOLUME AND SOLVATION NUMBER

1.
Chemistry Department, Peking University, Beijing

Received Date: 20 October 1984
Available Online: 15 August 1985

Sprengel pycnometers were used for density measurements. The volume of the pycnometers is about 25 ml. The precision of density data is within ±0.015 kgm~(-3). All measurements have been performed at 25.000±0.001 ℃. Partial molal volumes of salts in H_2O、 DMF and PC at 25 ℃ have been reported (Table 1).
A method to get ionic partial molal volumes from salt data based on thermodynamic and statistical approximation has been given. Ionic partial molal volumes in H_2O、DMF and PC have been obtained (Table 3). According to one layer structure model, a formula of solvation number related to partial molal volume is reported:
m_i=m_α+m_β
...
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STUDY OF SOLVATION OF MONATOMIC IONS
Ⅰ. PARTIAL MOLAL VOLUME AND SOLVATION NUMBER