Solubility and activity coefficients of acidic and basic nonelectrolytes in aqueous salt solutions.: 1.: Solubility and activity coefficients of o-phthalic acid and L-cystine in NaCl(aq), (CH3)4NCl(aq), and (C2H5)4NI(aq) at different ionic strengths and at t=25 °C

被引：38

作者：

Bretti, C ^{[1
]}

Crea, F ^{[1
]}

Foti, C ^{[1
]}

Sammartano, S ^{[1
]}

机构：

[1] Univ Messina, Dipartimento Chim Inorgan Chim Analit & Chim Fis, I-98166 Messina, Italy

来源：

JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2005年 / 50卷 / 05期

关键词：

D O I：

10.1021/je0502039

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The solubility of o-phthalic acid and L-cystine was determined at following concentrations: NaCl(aq) (0.1 to 4.5) mol(.)L(-1), (CH3)(4)NCl(aq) (0.1 to 3) mol(.)L(-1), (C2H5)(4)NI(aq) (0.1 to 1) mol(.)L(-1) and in pure water. The solubility trend is (C2H5)4NI > (CH3)(4)NCl > NaCl for o-phthalic acid and NaCl (CH3)4NCl > (C2H5)4NI for L-cystine. Setschenow constants and activity coefficients of neutral species were calculated from these data. The different trends shown by o-phthalic acid and L-cystine are discussed.

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页码：1761 / 1767

页数：7

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