Solubilities of Palmitic Acid in Pure Solvents and Its Mixtures

被引：25

作者：

Calvo, Beatriz ^{[1
]}

Collado, Idoia ^{[1
]}

Cepeda, Emilio A. ^{[1
]}

机构：

[1] Univ Basque Country, Fac Farm, Dept Ingn Quim, Vitoria 01006, Alava, Spain

来源：

JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2009年 / 54卷 / 01期

关键词：

VAPOR-LIQUID-EQUILIBRIA; MATHEMATICAL REPRESENTATION; THERMODYNAMIC PROPERTIES; FATTY-ACIDS; ORGANIC-SOLVENTS; BINARY; SYSTEMS; AZEOTROPES; HEPTANE; ENERGY;

D O I：

10.1021/je8005979

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The solubility of palmitic acid has been measured in ethanol, 2-propanol, acetone, heptane, hexane, and trichloroethylene and in the azeotropic mixtures of the solvents (ethanol-heptane; hexane-ethanol; ethanol-trichloroethylene; acetone-heptane; heptane-2-propanol; acetone-hexane; hexane-2-propanol; 2-propanol-trichloroethylene), by a dynamic method, from (290 to 325) K. Solubility data in pure solvents were fitted by the Wilson, NRTL, and UNIQUAC equations and the solubility of palmitic acid in azeotropic mixtures with the NIBS/Redlich-Kister equation. For all calculated results, the root-mean-square deviations of solubility temperatures vary from (0.2 to 0.82) K, depending on the equation used. The solubility in pure solvents decreased in the order: trichloroethylene > 2-propanol > hexane > heptane > acetone > ethanol. The solubility of the palmitic acid increased in azeotropic mixtures compared to the pure solvents, except for the ethanol-trichloroethylene mixture where the solubility was similar to the one in pure trichloroethylene.

引用

页码：64 / 68

页数：5

共 26 条

[1] MATHEMATICAL REPRESENTATION OF THERMODYNAMIC PROPERTIES - CARBAZOLE SOLUBILITIES IN BINARY ALKANE + DIBUTYL ETHER AND ALKANE + TETRAHYDROPYRAN SOLVENT MIXTURES [J].

ACREE, WE ;

MCCARGAR, JW ;

ZVAIGZNE, AI ;

TENG, IL .

PHYSICS AND CHEMISTRY OF LIQUIDS, 1991, 23 (01) :27-35

[2] MATHEMATICAL REPRESENTATION OF THERMODYNAMIC PROPERTIES .2. DERIVATION OF THE COMBINED NEARLY IDEAL BINARY SOLVENT (NIBS) REDLICH-KISTER MATHEMATICAL REPRESENTATION FROM A 2-BODY AND 3-BODY INTERACTIONAL MIXING MODEL [J].

ACREE, WE .

THERMOCHIMICA ACTA, 1992, 198 (01) :71-79

[3] THERMODYNAMIC PROPERTIES OF NONELECTROLYTE SOLUTIONS .4. ESTIMATION AND MATHEMATICAL REPRESENTATION OF SOLUTE ACTIVITY-COEFFICIENTS AND SOLUBILITIES IN BINARY SOLVENTS USING THE NIBS AND MODIFIED WILSON EQUATIONS [J].

ACREE, WE ;

ZVAIGZNE, AI .

THERMOCHIMICA ACTA, 1991, 178 :151-167

[4] Fatty acids and antioxidant effects on grease microstructures [J].

Adhvaryu, A ;

Sung, C ;

Erhan, SZ .

INDUSTRIAL CROPS AND PRODUCTS, 2005, 21 (03) :285-291

[5]

*BOE, 1981, BOE ART 28 REGL TECN, P12071

[6] Solubilities of stearic acid in organic solvents and in azeotropic solvent mixtures [J].

Calvo, Beatriz ;

Cepeda, Emilio A. .

JOURNAL OF CHEMICAL AND ENGINEERING DATA, 2008, 53 (03) :628-633

[7]

DAUBERT TE, 1984, PHYS THERMODYNAMIC P

[8] VAPOR-LIQUID-EQUILIBRIA BY UNIFAC GROUP CONTRIBUTION .5. REVISION AND EXTENSION [J].

HANSEN, HK ;

RASMUSSEN, P ;

FREDENSLUND, A ;

SCHILLER, M ;

GMEHLING, J .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1991, 30 (10) :2352-2355

[9]

Karaipekli A, 2007, J SCI IND RES INDIA, V66, P470

[10] LOW TEMPERATURE SOLUBILITIES OF FATTY ACIDS IN SELECTED ORGANIC SOLVENTS [J].

KOLB, DK ;

BROWN, JB .

JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY, 1955, 32 (06) :357-361

← 1 2 3 →