HE – Excess Enthalpies in Non-Electrolyte Mixtures
The hE data bank contains excess enthalpy (heats of mixing) data for a large number of binary and multicomponent mixtures. While the effect of hE on the enthalpy balance of unit operations is usually small, these data allow the precise description of the temperature dependence of the real liquid mixture behavior (gE and activity coefficients).
Knowledge of the excess enthalpy is the only safe way to use the experimental information from data banks like DDB-VLE and DDB-HPV at other temperatures.
Experimental determination of hE data is usually cheaper and less time consuming than VLE measurements. In many cases, authors report VLE at lower temperatures, especially room temperature, where the components are chemically more stable and hE is used to extrapolate the behavior to plant operation conditions.
A full list of systems is available in our DDB Online Search system. The page might take some seconds to load because of its size.
Data Tables, Monographies
| 1991 | DECHEMA Chemistry Data Series, Heats of Mixing Data Collection. Part 4: Supplement 2 | Christensen C., Gmehling J., Rasmussen P., Weidlich U., Holderbaum T. | Vol., 3.4, 6, 1-821 (1991) |
| 1988 | DECHEMA Chemistry Data Series, Heats of Mixing Data Collection. Part 3: Supplement 1 | Christensen C., Gmehling J., Rasmussen P., Weidlich U., Holderbaum T. | Vol., 3.3, 6, 1-690 (1988) |
| 1984 | DECHEMA Chemistry Data Series, Heats of Mixing Data Collection. Part 1: Binary Systems. Part 2: Binary and Multicomponent Systems | Christensen C., Gmehling J., Rasmussen P., Weidlich U., Holderbaum T. | Vol., 3.1+3.2, 6, 1-1638 (1984) |
Selected Scientific Papers
| 2009 | Recommended NRTL Model Parameters by Simultaneous Correlation of VLE, Infinite Dilution Activity Coefficients and Excess Enthalpy Data | Tochigi K., Rarey J., Gmehling J. | Journal | J.Chem.Eng.Japan, 42, 6, 376 380 (2009) |
| 2009 | Application of COSMO-RS Type Models to the Prediction of Excess Enthalpies | Constantinescu D., Rarey J., Gmehling J. | Journal | Ind.Eng.Chem.Res., 277, 1,8710-8725 (2009) |
| 2004 | Measurement and Correlation of Vapor-Liquid Equilibria and Excess Enthalpies of Binary Systems Containing Ionic Liquids and Hydrocarbons | Kato R., Krummen M., Gmehling J. | Journal | Fluid Phase Equilib., 224, 1, 47 54 (2004) |
| 2002 | Development of a Universal Group Contribution Equation of State. III. Prediction of Vapor-Liquid Equilibria, Excess Enthalpies, and Activity Coefficients at Inifinite Dilution with the VTPR Model | Ahlers J., Gmehling J. | Journal | Ind.Eng.Chem.Res., 41, 23, 5890 5899 (2002) |
| 2002 | Modification of PSRK mixing rules and results for vapor-liquid equilibria, enthalpy of mixing and activity coefficients at infinite dilution | Chen J., Fischer K., Gmehling J. | Journal | Fluid Phase Equilib., 200, 6, 411 429 (2002) |
| 1991 | Simultaneous Correlation of Excess Gibbs Energy and Excess Enthalpy Data using the Extended UNIQUAC Model | Nagata I., Gmehling J. | Journal | Thermochim.Acta, 175, 3, 281 292 (1991) |
Selected Scientific Papers (Experimental Data)
| 2009 | Measurement and Prediction of Activity Coefficients at Infinite Dilution (gamma infinite), Vapor-Liquid Equilibria (VLE) and Excess Enthalpies (hE) of Binary Systems with 1,1-Dialkyl-Pyrrolidinium Bis(Trifluoromethylsulfonyl)imide using Modified UNIFAC (Dortmund) | Nebig S., Liebert V., Gmehling J. | Journal | Fluid Phase Equilib., 277, 1, 61 67 (2009) |
| 2008 | (Vapour + liquid + liquid) equilibria and excess molar enthalpies of binary and ternary mixtures of isopropanol, water, and propylene | Grigiante M., Stringari P., Scalabrin G., Ihmels E.C., Fischer K., Gmehling J. | Journal | J.Chem.Thermodyn., 40, 4, 537 548 (2008) |
| 2008 | Vapour-liquid equilibria, azeotropic data, excess enthalpies, activity coefficients at infinite dilution and solid-liquid equilibria for binary alcohol-ketone systems | Abbas R., Gmehling J. | Journal | Fluid Phase Equilib., 267, 2, 119 126 (2008) |
| 2007 | Measurement of vapor.liquid equilibria (VLE) and excess enthalpies (HE) of binary systems with 1-alkyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide and prediction of these properties and gamma infinite using modified UNIFAC (Dortmund) | Nebig S., Boelts R., Gmehling J. | Journal | Fluid Phase Equilib., 258, 2, 168 178 (2007) |
| 2007 | Isothermal Phase Equilibria and Excess Molar Enthalpies for Binary Systems with Dimethyl Ether at 323.15 K | Park S.-J., Han K.-J., Gmehling J. | Journal | J.Chem.Eng.Data, 52, 5, 1814 1818 (2007) |
| 2007 | Vapor-Liquid Equilibria and HE for Binary Systems of Dimethyl Ether (DME) with C1-C4 Alkan-1-ols at 323.15 K and Liquid-Liquid Equilibria for Ternary System of DME + Methanol + Water at 313.15 K | Park S.-J., Han K.-J., Gmehling J. | Journal | J.Chem.Eng.Data, 52, 1, 230 234 (2007) |
| 2006 | Azeotropic and Heats of Mixing Data for Several Binary Organic Systems containing 1-Methoxy-2-propanol and 2-Butoxy Ethanol | Negadi L., Gmehling J. | Journal | J.Chem.Eng.Data, 51, 3, 1122 1125 (2006) |
| 2005 | Activity Coefficient at Infinite Dilution, Azeotropic Data, Excess Enthalpies and Solid-Liquid-Equilibria for Binary Systems of Alkanes and Aromatics with Esters | Collinet E., Gmehling J. | Journal | Fluid Phase Equilib., 230, 1-2, 131-142 (2005) |
| 2005 | Isothermal Vapor-Liquid Equilibrium, Excess Enthalpy Data, and Activity Coefficients at Infinite Dilution for the Binary System Water + Methyl Lactate | Sanz M.T., Gmehling J. | Journal | J.Chem.Eng.Data, 50, 1, 85 88 (2005) |
| 2004 | Vapor-Liquid-Liquid Equilibria, Azeotropic, and Excess Enthalpy Data for the Binary System n-Undecane + Propionamide and Pure-Component Vapor Pressure and Density Data for Propionamide | Horstmann S., Fischer K., Gmehling J. | Journal | J.Chem.Eng.Data, 49, 6, 1494 1498 (2004) |
| 2004 | Influence of Water on the Vapor-Liquid Equilibria, Activity Coefficients at Infinite Dilution and Enthalpies of Mixing for Mixtures of n-Methyl-2-Pyrrolidone with C5 or C6 Hydrocarbons | Fischer K., Gmehling J. | Journal | Fluid Phase Equilib., 218, 1, 69 76 (2004) |
| 2004 | Isothermal Vapor-Liquid Equilibrium and Excess Enthalpy Data for the Binary Systems Water + Sulfolane and Methanol + N-Methyl-2-pyrrolidone | Horstmann S., Fischer K., Gmehling J. | Journal | J.Chem.Eng.Data, 49, 6, 1499 1503 (2004) |
| 2004 | Isothermal Vapor-Liquid Equilibrium and Excess Enthalpy Data for the Binary Systems Water + 1,2-Ethanediol and Propene + Acetophenone | Horstmann S., Gardeler H., Wilken M., Fischer K., Gmehling J. | Journal | J.Chem.Eng.Data, 49, 6, 1508 1511 (2004) |
| 2004 | Isothermal Vapor-Liquid Equilibrium and Excess Enthalpy Data for the Binary Systems Propylene Oxide + 2-Methylpentane and Difluoromethane (R32) + Pentafluoroethane (R125) | Horstmann S., Wilken M., Fischer K., Gmehling J. | Journal | J.Chem.Eng.Data, 49, 6, 1504 1507 (2004) |
| 2003 | Excess Molar Enthalpies for the Binary Systems of Benzene or Cyclohexane with 1,1-Diethoxyethane at 323.15 K or with 2,2-Diemethoxybutane at 303.15 K and Infinite Dilution Activity Coefficients in 1,1-Diethoxyethane | Teodorescu M., Krummen M., Gmehling J. | Journal | J.Chem.Eng.Data, 48, 2, 435 439 (2003) |
| 2002 | Phase equilibria and Excess Enthalpy for the System Methanol + 2,2-Diethanolamine + Water | Horstmann S., Mougin P., Lecomte F., Fischer K., Gmehling J. | Journal | J.Chem.Eng.Data, 47, 6, 1496 1501 (2002) |
| 2002 | Vapor-liquid equilibria and excess properties for methyl tert-butyl ether (MTBE) containing binary systems | Park S.-J., Han K.-J., Gmehling J. | Journal | Fluid Phase Equilib., 200, 6, 399 409 (2002) |
| 2002 | Isothermal vapor-liquid equilibria and excess molar volumes for the ternary mixtures containing 2-methyl pyrazine | Park S.-J., Han K.-J., Choi M.-J., Gmehling J. | Journal | Fluid Phase Equilib., 193, 6, 109 121 (2002) |
| 2001 | Vapor-Liquid Equilibria and Excess Enthalpy Data for the Binary System Propionic Aldehyde + 2-Methyl-2-butanol at 333.15 K | Horstmann S., Gmehling J. | Journal | J.Chem.Eng.Data, 46, 6, 1487 1489 (2001) |
| 2001 | Excess Enthalpy Data for Seven Binary Systems at Temperatures between 50 and 140 C | Lohmann J., Boelts R., Gmehling J. | Journal | J.Chem.Eng.Data, 46, 2, 208 211 (2001) |
| 2001 | Isothermal Vapor-Liquid equilibrium and excess Enthalpy Data for the Binary Systems Methyl tert-Butyl Ether + Cyclohexane and Ethyl tert-Butyl Ether + Cyclohexane, n-Hexane, and n-Heptane in a Temperature Range from 298.15 to 393.15 K | del Rio A., Horstmann S., Renuncio J.A.R., Gmehling J. | Journal | J.Chem.Eng.Data, 46, 5, 1181 1187 (2001) |
| 2001 | Azeotropic and heats of mixing data for various binary systems with diethoxymethane | Constantinescu D., Wittig R., Gmehling J. | Journal | Fluid Phase Equilib., 191, 10, 99 109 (2001) |
| 2001 | Phase Equilibria and Excess Properties for Binary Systems in Reactive Distillation Processes. Part I. Methyl Acetate Synthesis | Horstmann S., Poepken T., Gmehling J. | Journal | Fluid Phase Equilib., 180, 2, 221 234 (2001) |
| 2001 | Vapor-Liquid Equilibria and Enthalpies of Mixing in a Temperature Range from 298.15 to 413.15 K for the Further Development of Modified UNIFAC (Dortmund) | Wittig R., Lohmann J., Joh R., Horstmann S., Gmehling J. | Journal | Ind.Eng.Chem.Res., 40, 24, 5831 5838 (2001) |
| 1999 | Vapor-Liquid Equilibria at 453.25 K and Excess Enthalpies at 363.15 K and 413.15 K for Mixtures of Benzene, Toluene, Phenol, Benzaldehyde, and Benzyl Alcohol with Benzyl Benzoate | Nienhaus B., Wittig R., Boelts R., de Haan A.B., Niemann S.H., Gmehling J. | Journal | J.Chem.Eng.Data, 44, 2, 303 308 (1999) |
| 1999 | Isothermal Vapor-Liquid Equilibrium and Excess Enthalpy Data for the Binary Systems Diethyl Ether + Ethyl tert-Butyl Ether, 1-Pentene + Methyl Acetate, and Propene + 2-Propanol | Horstmann S., Gardeler H., Boelts R., Rarey J., Gmehling J. | Journal | J.Chem.Eng.Data, 44, 3, 383 387 (1999) |
| 1999 | Isothermal P, x Data and Excess Enthalpies for Two Binary Systems | Strothmann B., Noll O., Fischer K., Gmehling J. | Journal | J.Chem.Eng.Data, 44, 3, 379 382 (1999) |
| 1999 | Various Thermodynamic Properties for Binary Systems with Tertiary Ethers | Heine A., Fischer K., Gmehling J. | Journal | J.Chem.Eng.Data, 44, 3, 373 378 (1999) |
| 1999 | Measurement of Thermodynamic Properties for the System Sulfur Hexafluoride + Water | Strothmann B., Fischer K., Gmehling J. | Journal | J.Chem.Eng.Data, 44, 3, 388 392 (1999) |
| 1999 | Vapor-Liquid Equilibria and Excess Enthalpy Data for the Binary Systems 2-Methyltetrahydrofuran with 2,2,4-Trimethylpentane (Isooctane), Ethanol, Toluene, Cyclohexane, and Methylcyclohexane | Horstmann S., Gardeler H., Boelts R., Zudkevitch D., Gmehling J. | Journal | J.Chem.Eng.Data, 44, 5, 959 964 (1999) |
| 1999 | Vapor-Liquid Equilibria and Excess Enthalpy Data for the Binary Systems Benzene + Benzonitrile and Toluene + Benzonitrile Covering the Temperature Range from 323.15 K to 413.15 K. | Horstmann S., Gardeler H., Boelts R., Gmehling J. | Journal | J.Chem.Eng.Data, 44, 3, 539 543 (1999) |
| 1998 | Vapor-liquid equilibria at six temperatures from 313.15 K to 402.15 K and excess enthalpy data at 363.15 K and 1.65 Mpa for the system toluene + 2,2,4-trimethylpentane (isooctane) | Gardeler H., Horstmann S., Tsuboi A., Toba S., Rarey J., Gmehling J. | Journal | Eldata Int.Electron.J.Phys.-Chem.Data, 4, 1, 1 10 (1998) |
| 1998 | Vapor-Liquid Equilibria at 413.65 K and Excess Enthalpies at 323.15, 363.15, and 413.15 K for Mixtures of Benzene, Toluene, Phenol, and Benzaldehyde | Nienhaus B., Limbeck U., Boelts R., de Haan A.B., de Haan A.B., Niemann S.H., Gmehling J. | Journal | J.Chem.Eng.Data, 43, 6, 941 948 (1998) |
| 1998 | Vapor-liquid equilibria at six temperatures from 313.15 K to 402.15 K and excess enthalpy data at 363.15 K and 1.65 Mpa for the system toluene + 2,2,4-trimethylpentane (isooctane) | Gardeler H., Horstmann S., Tsuboi A., Toba S., Rarey J., Gmehling J. | Journal | Eldata Int.Electron.J.Phys.-Chem.Data, 4, 5, 1 10 (1998) |
| 1997 | Vapor-Liquid Equilibria and Excess Enthalpies for Binary Mixtures of N-Methylcetamide with 1-Octene, Dipropylamine, Triethylamine, Pyridine, and Methanol at 125C | de Haan A.B., Fischer K., Haacke M., Gmehling J. | Journal | J.Chem.Eng.Data, 42, 3, 597 602 (1997) |
| 1997 | Vapor-Liquid Equilibria and Enthalpies of Mixing for Binary Mixtures of N-Methylacetamide with Aniline, Decane, Ethylene Glycol, Naphthalene, Phenol and Water | de Haan A., Fischer K., Haacke M., Aufderhaar O., Petri M., Gmehling J. | Journal | J.Chem.Eng.Data, 42, 5, 875 881 (1997) |
| 1996 | Vapor-liquid equilibria, activity coefficients at infinite dilution and heats of mixing for mixtures of N-methyl pyrrolidone-2 with C5 or C6 hydrocarbons and for hydrocarbon mixtures | Fischer K., Gmehling J. | Journal | Fluid Phase Equilib., 119, 7, 113 130 (1996) |
| 1996 | Excess Enthalpies for Various Binary Mixtures with N-Methylacetamide or Acetic Anhydride | de Haan A.B., Gmehling J. | Journal | J.Chem.Eng.Data, 41, 3, 474 478 (1996) |
| 1996 | Excess Enthalpies of tert-Butyl Methyl Ether (Mtbe) + Butane at 323.15 K and 1.8 MPa and of tert-Amyl Methyl Ether (Tame) + Methanol at 363.15 K and 2.4 MPa | Gmehling J. | Journal | Eldata Int.Electron.J.Phys.-Chem.Data, 2, 3, 131 134 (1996) |
| 1996 | Vapor-Liquid Equilibria and Enthalpies of Mixing for the Binary System Water + N-Methyl-2-pyrrolidone in the Temperature Range 80-140 C | Noll O., Fischer K., Gmehling J. | Journal | J.Chem.Eng.Data, 41, 6, 1434 1438 (1996) |
| 1996 | Vapor-Liquid Equilibria and Excess Enthalpies for Binary Mixtures of Acrylonitrile with Hexane, Cyclohexane, Benzene, Toluene, 2-Butanone, and Acetonitrile | de Haan A.B., Boelts R., Gmehling J. | Journal | J.Chem.Eng.Data, 41, 5, 1155 1159 (1996) |
| 1995 | Excess enthalpies of (aniline + an alkane or an alkene) at the temperature 363.15 K | Avedis G., Meents B., Gmehling J. | Journal | J.Chem.Thermodyn., 27, 1, 939 944 (1995) |
| 1995 | Vapor-Liquid Equilibria and Excess Enthalpies for Octane + N-Methylacetamide, Cyclooctane + N-Methylacetamide, and Octane + Acetic Anhydride at 125 C | de Haan A.B., Heine A., Fischer K., Gmehling J. | Journal | J.Chem.Eng.Data, 40, 6, 1228 1232 (1995) |
| 1995 | The excess enthalpy of tetrahydrofuran (oxolane) + water, a binary liquid mixture with closed limiting miscibility curve, below (343.15 K), between (383.15 K), and above (416.29 K) the consolute temperatures | Gmehling J., Krentscher B. | Journal | Eldata Int.Electron.J.Phys.-Chem.Data, 1, 3, 291 295 (1995) |
| 1995 | Excess enthalpies of 12 binary liquid mixtures containing cyclohexane at elevated temperatures and pressures (up to 416 K and 1.9 MPa) | Gmehling J., Krentscher B. | Journal | Eldata Int.Electron.J.Phys.-Chem.Data, 1, 1, 181 190 (1995) |
| 1993 | Excess molar enthalpies of (fluorobenzene or trifluoromethylbenzene or iodoethane + methanol or toluene) at the temperature 313.15 K and pressure 0.7 MPa | Atik Z., Meents B., Gmehling J. | Journal | J.Chem.Thermodyn., 25, 1, 905 907 (1993) |
| 1993 | Excess Enthalpies for 1,1,1-Trichloroethane with Alkanes, Ketones, and Esters | Gmehling J. | Journal | J.Chem.Eng.Data, 38, 1, 143 146 (1993) |
| 1992 | Excess Enthalpies of Ethanenitrile + 1-Alkenes (C6, C8) or + 2-Alkanones (C4, C7) and of Hexane + Nitroalkanes (C1, C2) | Gmehling J., Meents B. | Journal | Int.Data Series Sel.Data Mixtures Ser. A, 1992, 3, 204 209 (1992) |
| 1992 | Excess Enthalpies of Cyclohexane + Hexane and of 2,5,8,11,14-Pentaoxapentadecane + Benzene | Gmehling J., Meents B. | Journal | Int.Data Series Sel.Data Mixtures Ser. A, 1992, 3, 144 145 (1992) |
| 1992 | Excess Enthalpies of tert-Butyl Methyl Ether, Methanol, or Ethanol + Butane or + 2-Methylpropene | Gmehling J., Park S.J., Fischer K., Meents B. | Journal | Int.Data Series Sel.Data Mixtures Ser. A, 1992, 3, 146 152 (1992) |
| 1992 | Excess Enthalpies of Some Alkanol (C1 - C4) + Alkane (C5 - C8) or + 1-Alkene (C6, C8) Mixtures | Gmehling J., Meents B. | Journal | Int.Data Series Sel.Data Mixtures Ser. A, 1992, 3, 153 160 (1992) |
| 1992 | Excess Enthalpie sof Some Alkanone (C3 - C7) + Alkene (C6, C8) | Gmehling J., Meents B. | Journal | Int.Data Series Sel.Data Mixtures Ser. A, 1992, 3, 161 168 (1992) |
| 1992 | Excess Enthalpies of Some Alkyl Ethanoates (C4, C6, C8) + 1-Hexene or + 1-Octene Mixtures | Gmehling J., Meents B. | Journal | Int.Data Series Sel.Data Mixtures Ser. A, 1992, 3, 169 176 (1992) |
| 1992 | Excess Enthalpies of Some Alkyl Ethanoates (C4, C6, C8) + Toluene or + 1,4-Dimethylbenzene Mixtures | Gmehling J., Meents B. | Journal | Int.Data Series Sel.Data Mixtures Ser. A, 1992, 3, 177 184 (1992) |
| 1992 | Excess Enthalpies of Some Mixtures Containing Chloroalkanes (C1 - C3) | Gmehling J., Meents B. | Journal | Int.Data Series Sel.Data Mixtures Ser. A, 1992, 3, 189 203 (1992) |
| 1992 | Excess Enthalpies of 1-Methyl-2-pyrrolidinone + Cyclohexane, + Benzene, + Toluene, or + 1,4-Dimethylbenzene | Gmehling J., Meents B. | Journal | Int.Data Series Sel.Data Mixtures Ser. A, 1992, 3, 210 213 (1992) |
| 1992 | Excess Enthalpies of Propyl Ethanoate + 2-Butanone or + 1-Butanol and of Methyl Dodecanoate + Toluene or + Methanol Mixtures | Gmehling J., Meents B. | Journal | Int.Data Series Sel.Data Mixtures Ser. A, 1992, 3, 185 188 (1992) |
