引用本文:
李林尉, 褚德萤, 刘瑞麟. RbCl在H2O-DMF混合溶剂中活度系数的测定[J]. 物理化学学报,
1998, 14(08): 691-697.
doi:
10.3866/PKU.WHXB19980805
Citation: Li Lin-Wei, Chu De-Ying, Liu Rui-Lin. Determination of Activity Coefficients of RbCl in (H2O-DMF) Mixed Solvents at 283.15 to 318.15K[J]. Acta Physico-Chimica Sinica, 1998, 14(08): 691-697. doi: 10.3866/PKU.WHXB19980805
Citation: Li Lin-Wei, Chu De-Ying, Liu Rui-Lin. Determination of Activity Coefficients of RbCl in (H2O-DMF) Mixed Solvents at 283.15 to 318.15K[J]. Acta Physico-Chimica Sinica, 1998, 14(08): 691-697. doi: 10.3866/PKU.WHXB19980805
RbCl在H2O-DMF混合溶剂中活度系数的测定
English
Determination of Activity Coefficients of RbCl in (H2O-DMF) Mixed Solvents at 283.15 to 318.15K
Abstract:
The reversible cell used in this work consists of the monovalent cation selective electrode and chloride selective electrode, namely
Cl--ISE|RbCl(m), H_2O(1- x)- DMF(x)| M+ - ISE
The standard electromotive forces of the above cells have been measured at seven temperatures ranging from 283.15 to 318.15 K, and standard free energies of transfer Gt of RbCl from H2O to H2O-DMF mixed solvents, mean ionic activity coefficients of RbCl in mixed solvents and its medium effects have been calculatcd. The behavior of Δ?Gt and of RbCl with mole fractions x of DMF in the mixed solvents have been discussed.
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Key words:
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RbCl
- / H2O-DMF
- / Standard free energy of transfer
- / Activity coefficients
- / Medium effect
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