@article {2475,
	title = {High Temperature End of the So-Called "Koga Line": Anomalies in Temperature Derivatives of Heat Capacities},
	journal = {Journal of Physical Chemistry B},
	volume = {113},
	number = {17},
	year = {2009},
	note = {ISI Document Delivery No.: 438BCTimes Cited: 0Cited Reference Count: 24Koga, Yoshikata Westh, Peter Moriya, Yosuke Kawasaki, Koji Atake, Tooru},
	month = {Apr},
	pages = {5885-5890},
	type = {Article},
	abstract = {The so-called "Koga line" is a collection of the loci of anomalies in various third derivatives of the Gibbs function, G, in the temperature-mole fraction field for aqueous solutions of nonelectrolytes. This splits the H2O-rich region into two, in each of which the molecular organization and interactions-we call it mixing scheme-is qualitatively different. In this work, we attempt to locate the high temperature end of the Koga line. This is a particularly interesting range of the boundary, since its extrapolation to zero Solute concentration provides information on possible temperature induced changes in the properties of pure water. To this end, we determine semi-isobaric heat capacities of aqueous 2-butoxyethanol by adiabatic calorimetry up to a maximum of 95 degrees C. The corrections due to vaporization were not applied due to the lack of required vapor pressure and thermal expansivity data. Furthermore, we measured directly the isobaric heat capacities per molar volume for aqueous I-propanol as well as 2-butoxyethanol by differential scanning calorimetry up to 120 degrees C at 3 atm. We then took one more temperature derivative of the respective heat capacity data. The resulting third derivative quantities from the former data showed step-type anomalies, while those from the latter negative peak-type anomalies. The loci of these anomalous points seem to point to about 70 degrees C at infinite dilution.},
	keywords = {25-DEGREES-C, AQUEOUS 2-BUTOXYETHANOL, density, FLUCTUATION, METHANOL, MIXING SCHEME, PARTIAL MOLAR VOLUMES, pressure, TRANSITION, WATER-RICH REGION},
	isbn = {1520-6106},
	url = {<Go to ISI>://000265529900029},
	author = {Koga,Yoshikata and Westh, P. and Moriya, Y. and Kawasaki, K. and Atake, T.}
}
@article {1523,
	title = {Kirkwood-Buff integrals of aqueous alcohol binary mixtures},
	journal = {Journal of Chemical Physics},
	volume = {124},
	number = {12},
	year = {2006},
	note = {ISI Document Delivery No.: 028CPTimes Cited: 16Cited Reference Count: 32},
	month = {Mar},
	pages = {9},
	type = {Article},
	abstract = {The Kirkwood-Buff integrals of some binary aqueous alcohol mixtures are computed from the available vapor pressure measurements and compared with previous results as well as small angle neutron scattering experiments. The emphasis of the present report is on accuracy of the results that can be achieved by these two different types of measurements. This seems to be needed, mainly in view of the discrepancies between the various published results, as shown herein. It is argued that agreement in peak positions is more important than that in magnitude. In general, very good agreement is obtained by both methods, and sources of disagreements are discussed. The issue of the computer simulations of aqueous systems and the problematics related to correlations, microheterogeneity, and consequently the Kirkwood-Buff integrals are equally discussed herein.},
	keywords = {25-DEGREES-C, fluctuations, FORCE-FIELD, LIQUID-MIXTURES, MIXING SCHEME, PARAMETERS, PARTICLE NUMBER, TERT-BUTYL ALCOHOL, WATER MIXTURES, X-RAY-SCATTERING},
	isbn = {0021-9606},
	url = {<Go to ISI>://000236464000052},
	author = {Perera, A. and Sokolic, F. and Almasy, L. and Koga,Yoshikata}
}
@article {587,
	title = {Excess chemical potential and partial molar enthalpy of 2-iso-butoxyethanol in aqueous solution at 20 degrees C},
	journal = {Thermochimica Acta},
	volume = {397},
	number = {1-2},
	year = {2003},
	note = {ISI Document Delivery No.: 642RNTimes Cited: 0Cited Reference Count: 14},
	month = {Feb},
	pages = {75-80},
	type = {Article},
	abstract = {Vapour pressures were determined at 20degreesC for aqueous 2-iso-butoxyethanol (ME). Partial pressures and hence, the excess chemical potentials of iBE were calculated by the Boissonnas method. Excess partial molar enthalpies were measured, and the excess partial molar entropies of iBE were then calculated at 20degreesC. These data and their mole fraction dependence indicated that there are three mixing schemes operative, in the same way as in aqueous 2-n-butoxyethanol (nBE) studied extensively by us. The details of each mixing schemes are identical, but the locus of the transition between mixing schemes I and II occurs at a smaller mole fraction than for aqueous nBE. This suggests that iBE is a stronger hydrophobic solute than nBE, which is consistent with the common understanding. (C) 2002 Elsevier Science B.V. All rights reserved.},
	keywords = {2-BUTOXYETHANOL, 2-iso-butoxyethanol-H2O, 2-ISOBUTOXYETHANOL, 2-n-butoxyethanol-H2O, 25-DEGREES-C, a stronger hydrophobicity than 2-n-butoxyethanol, ALCOHOL, BUTYL, enthalpic interaction functions, excess partial molar enthalpy and entropy, LAW REGION, MIXING SCHEME, MIXTURES, THERMODYNAMIC PROPERTIES, three mixing schemes identical with, VAPOR-PRESSURES, WATER},
	isbn = {0040-6031},
	url = {<Go to ISI>://000180803100010},
	author = {Cheung, C. M. W. and Chan, K. P. Y. and Koga,Yoshikata}
}
@article {656,
	title = {Excess partial molar entropy of alkane-mono-ols in aqueous solutions at 25 degrees C},
	journal = {Canadian Journal of Chemistry-Revue Canadienne De Chimie},
	volume = {81},
	number = {2},
	year = {2003},
	note = {ISI Document Delivery No.: 652JVTimes Cited: 9Cited Reference Count: 21},
	month = {Feb},
	pages = {150-155},
	type = {Article},
	abstract = {In the preceding paper, we reported the values of model-free chemical potentials for aqueous methanol, ethanol, 1-propanol, 2-propanol, 1-butanol, and 1-hexanol at 25degreesC over the entire compositional region. Using alcohol excess partial molar enthalpies, H-AL(E), determined earlier in this laboratory (Can. J. Chem. 74, 713 (1996)), we have calculated excess partial molar entropies for the alcohols, S-AL(E), where AL stands for an alcohol. We then calculated, numerically, the entropic interaction, S-AL-AL(E) = N(partial derivativeS(AL)(E)/partial derivativen(AL))(p,T,nW), where n(AL) is the amount of AL, n(W) is the amount of H2O, and N is the total amount of solution. S-AL-AL(E) signifies the effect of addition of AL upon the entropic situation of existing AL in solution. Using these quantities, the mixing schemes in aqueous alcohols have been studied. The earlier conclusions, which used H-AL(E) and H-AL-AL(E) alone, are confirmed. Furthermore, the order of the relative hydrophobic nature of alcohols is established from the behaviour of S-AL-AL(E) and of H-AL-AL(E) as methanol < ethanol < 2-propanol < 1-propanol.},
	keywords = {2-BUTOXYETHANOL, ALCOHOL, aqueous alcohols, BUTANOL, ENTHALPIES, entropic interaction, excess partial molar entropies, hydrophobicity ranking, MIXING SCHEME, MIXING SCHEMES, MIXTURES, NONELECTROLYTES, TRANSITION, VOLUMES, WATER-RICH REGION},
	isbn = {0008-4042},
	url = {<Go to ISI>://000181376800004},
	author = {Koga,Yoshikata and Westh, P. and Nishikawa, K.}
}
@article {4958,
	title = {Interactions in D-fructose-1-propanol-H2O: the effect of D-fructose on the molecular organization of liquid H2O},
	journal = {Fluid Phase Equilibria},
	volume = {171},
	number = {1-2},
	year = {2000},
	note = {ISI Document Delivery No.: 349EQTimes Cited: 5Cited Reference Count: 27},
	month = {May},
	pages = {151-164},
	type = {Article},
	abstract = {Densities of binary aqueous solutions of D-fructose (abbreviated as FR hereinafter) were determined in a much wider mole fraction range than available in literature. In contrast to hydrophobic solutes, the partial molar volume of FR, V-FR, does not show an initial decrease on increasing the mole fraction of FR, x(FR). In order to learn more about the effect of FR on the molecular organization of liquid H2O, the excess chemical potentials and partial molar enthalpy of 1-propanol (1P) were determined in ternary 1P-FR-H2O system. Namely, the detailed thermodynamic behaviour of 1P in the ternary system was used as a probe to elucidate the effect of FR on liquid H2O. In comparison with earlier results of the temperature dependence of tert-butanol (TBA)-TBA interaction functions, addition of FR seems to have a similar effect of temperature increase on the molecular organization of H2O. We suggest that addition of FR tends to decrease the global average of hydrogen bond probability of H2O. (C) 2000 Elsevier Science B.V. All rights reserved.},
	keywords = {25-DEGREES-C, AQUEOUS-SOLUTIONS, BUTYL ALCOHOL-SOLUTIONS, chemical potential, CHEMICAL-POTENTIALS, D-fructose-1-propanol-H2O, effect of beta-D-fructose on H2O, INTERMOLECULAR INTERACTIONS, MIXING SCHEME, PARTIAL MOLAR ENTHALPIES, partial molar enthalpy, TRANSITION, VOLUME, VOLUMES, WATER-RICH REGION},
	isbn = {0378-3812},
	url = {<Go to ISI>://000089031000011},
	author = {To, E. C. H. and Westh, P. and Trandum, C. and Hvidt, A. and Koga,Yoshikata}
}
@article {4686,
	title = {Excess chemical potentials, excess partial molar enthalpies, entropies, volumes, and isobaric thermal expansivities of aqueous glycerol at 25 degrees C},
	journal = {Journal of Solution Chemistry},
	volume = {28},
	number = {10},
	year = {1999},
	note = {ISI Document Delivery No.: 247VPTimes Cited: 36Cited Reference Count: 27},
	month = {Oct},
	pages = {1137-1157},
	type = {Article},
	abstract = {The vapor pressures p the excess partial molar enthalpies of glycerol He,, the densities d and the thermal expansivities oc, of aqueous glycerol were measured at 25 degrees C. From the vapor pressure data, the excess chemical potential of H2O mu(W)(E) was calculated, assuming that the partial pressure of glycerol Poly is negligibly small. The excess chemical potential of glycerol mu(Gly)(E) was estimated by applying the Gibbs-Duhem relation and these data were used to calculate the excess partial molar entropies S-Gly(E). From the density data, the excess partial molar volumes of glycerol V-Gly(E) and from the thermal expansivity data, the normalized cross fluctuations (SV)Delta, introduced by us earlier, were evaluated. While the detailed manner in which glycerol modifies the molecular arrangement of H2O in its immediate vicinity is yet to be elucidated, the hydrogen bond probability in the bulk H2O away from solute molecules is reduced gradually as the glycerol composition increases to the point where putative presence of icelike patches is no longer possible. Thereupon, a qualitatively different mixing scheme seems to set in.},
	keywords = {2-BUTOXYETHANOL, aqueous glycerol, excess partial molar enthalpies and, fluctuations, MIXING SCHEME, MIXTURES, NONELECTROLYTES, normalized cross fluctuations, PERCOLATION, PRESSURES, TERT-BUTANOL, THERMAL EXPANSIVITIES, TRANSITION, vapor pressures, VOLUMES, WATER-RICH REGION},
	isbn = {0095-9782},
	url = {<Go to ISI>://000083241900003},
	author = {To, E. C. H. and Davies, J. V. and Tucker, M. and Westh, P. and Trandum, C. and Suh, K. S. H. and Koga,Yoshikata}
}
@article {4422,
	title = {Intermolecular interactions in tert-butyl alcohol dimethyl sulfoxide H2O: Chemical potentials, partial molar entropies and volumes},
	journal = {Journal of Physical Chemistry B},
	volume = {102},
	number = {26},
	year = {1998},
	note = {ISI Document Delivery No.: ZY137Times Cited: 13Cited Reference Count: 28},
	month = {Jun},
	pages = {5182-5195},
	type = {Article},
	abstract = {The excess chemical potentials, the excess partial molar entropies, and the partial molar volumes in tert-butyl alcohol (TBA)-dimethyl sulfoxide (DMSO)-H2O mixtures were determined. These data, together with previously published excess partial molar enthalpies (Fluid Phase Equilib. 1997, 136, 207) were used to evaluate intermolecular interactions. The TBA-TBA and TBA-DMSO, and DMSO-DMSO interactions were found to be crucially dependent on the composition. The net interaction in terms of chemical potential is very intricate. For example, net interactions of DMSO with a hydrophobic moiety (represented here by TEA) change from attractive to repulsive as the composition changes. This suggests that general discussions of the affinity of DMSO for nonpolar groups (or surfaces) are meaningful only by specifying the composition region. The interactions in terms of enthalpy and entropy are an order of magnitude larger and strongly compensating. Anomalous changes in the enthalpic/entropic interactions and hence qualitative changes in the mixing scheme of the solution, previously described in respective binary TBA-H2O and DMSO-H2O systems, are also apparent in this ternary system. II was found that as the mole fraction, x(D), of DMSO (third component) increases, the transition in mixing scheme occurred at a progressively lower value of x(B). The behavior of partial molar volume indicated that as x(B) increases, the initial increase in the partial molar volume of H2O on increasing x(D), reminiscent to "iceberg formation", diminished. This suggests that existing TEA molecules already made their contribution to the "iceberg formation". The DMSO-DMSO interaction in terms of volume also showed that the transition occurred at a smaller value of x(D) than that for x(B) = 0. The boundary between the two mixing schemes in the present ternary mixture was a straight line in the x(D)-x(B) field, suggesting that the effect of TEA and DMSO on H2O, causing the transition in the mixing scheme, is additive.},
	keywords = {AQUEOUS-SOLUTIONS, ENTHALPIES, HYDROPHOBIC INTERACTION, MIXING SCHEME, MIXTURES, NONELECTROLYTES, NONPOLAR SOLUTE PARTICLES, PERCOLATION, TRANSITION, WATER-RICH REGION},
	isbn = {1089-5647},
	url = {<Go to ISI>://000074590000026},
	author = {Trandum, C. and Westh, P. and Haynes, C. A. and Koga,Yoshikata}
}
@article {4027,
	title = {{\textquoteright}Intermolecular interactions{\textquoteright} in aqueous solutions of three components including lysozyme},
	journal = {Fluid Phase Equilibria},
	volume = {136},
	number = {1-2},
	year = {1997},
	note = {ISI Document Delivery No.: YR149Times Cited: 5Cited Reference Count: 4614th IUPAC Conference on Chemical Thermodynamics (ICCT 97)AUG 25-30, 1996OSAKA, JAPANInt Union Pure \& Appl Chem, Sci Council Japan, Chem Soc Japan, Japan Soc Calorimetry \& Thermal Anal, Atom Energy Soc Japan},
	month = {Nov},
	pages = {207-221},
	type = {Proceedings Paper},
	abstract = {Excess partial molar enthalpies were measured in ternary aqueous solutions, tert-butyl alcohol (TBA)DMSO-H2O, and lysozyme (L)-alcohols (A)-H2O. The solute-solute interactions were evaluated as the derivatives of these data with respect to the mole fraction of a solute. In the water-rich region, where the so-called mixing scheme I is operating in binary aqueous solutions of TEA, DMSO or alcohols, two solutes in TBA-DMSO-H2O seem to modify the hydrogen bond network of H2O in an additive manner. Here, mixing scheme I refers to the way in which a solute (hydrophobic) modifies the molecular organization of H2O. Specifically, a solute enhances the hydrogen bond strength of H2O in its immediate vicinity. On the other hand, the probability of hydrogen bond in the bulk away from a solute is reduced, and it is still high enough, however, to keep the hydrogen bond network connected throughout the entire macroscopic: system. As the composition of solute increases, the hydrogen bond probability in the bulk decreases to the point at which the macroscopic bond connectivity is no longer possible. At this point, a new mixing scheme, II, sets in. For L-A-H2O mixtures at infinite dilution of L, the L-A interaction changes drastically from repulsive: to attractive at the boundary between I and II for binary aqueous alcohols. Moreover, a denatured lysozyme interacts with alcohols more strongly than the native form, and is more repulsive in mixing scheme I and more attractive in IT. This behaviour is shown to be consistent with the alcohol-dependent enthalpy of denaturation of lysozyme found by Velicelebi and Sturtevant [Velicelebi and Sturtevant, Biochem. 18 (1979) 1188-86]. (C) 1997 Elsevier Science B.V.},
	keywords = {2-BUTOXYETHANOL, BUTYL ALCOHOL, denaturation of lysozyme, enthalpy of, excess partial molar enthalpies, FREE-ENERGIES, HEAT-CAPACITIES, lysozyme-alcohols-H2O, MIXING SCHEME, PARTIAL MOLAR ENTHALPIES, SOLUTE-SOLUTE INTERACTION, TERT-BUTANOL MIXTURES, tert-butyl alcohol-DMSO-H2O, THERMAL EXPANSIVITIES, VAPOR-PRESSURES, WATER-RICH REGION},
	isbn = {0378-3812},
	url = {<Go to ISI>://000071465000020},
	author = {Koga,Yoshikata and Westh, P. and Trandum, C. and Haynes, C. A.}
}
@article {3830,
	title = {Excess partial molar enthalpies of alkane-mono-ols in aqueous solutions},
	journal = {Canadian Journal of Chemistry-Revue Canadienne De Chimie},
	volume = {74},
	number = {5},
	year = {1996},
	note = {ISI Document Delivery No.: UP791Times Cited: 50Cited Reference Count: 29},
	month = {May},
	pages = {713-721},
	type = {Article},
	abstract = {Excess partial molar enthalpies, H-A(E), of methanol, ethanol, and 1- and 2-propanols in aqueous solutions were measured directly, accurately, and in small increments in mole fraction at 25 degrees C. From these data, the solute-solute enthalpic interactions, H-AA(E) = N(partial derivative H-A(E)/partial derivative n(A)), were evaluated for each alcohol. These data indicate that three distinctively different mixing schemes, I, II, and III exist, as was the case for aqueous 2-butoxyethanol previously studied in our laboratory. The transition from mixing scheme I to II appears to take place gradually within a small composition range. As the hydrophobic moiety becomes smaller from 2-butoxyethanol to methanol, the locus of the transition moves to a higher value in mole fraction of the alcohol. At the same time, the range of transition becomes wider and the solute-solute enthalpic interaction weaker.},
	keywords = {1-PROPANOL, 2-BUTOXYETHANOL, 2-PROPANOL, 25-DEGREES-C, BUTYL ALCOHOL-SOLUTIONS, CONCENTRATION FLUCTUATIONS, enthalpic interaction, ENTROPIES, ETHANOL, excess partial molar enthalpies in aqueous solutions, FREE-ENERGIES, METHANOL, MIXING SCHEME, TERT-BUTANOL MIXTURES, TRANSITION, transition of, WATER-RICH REGION},
	isbn = {0008-4042},
	url = {<Go to ISI>://A1996UP79100011},
	author = {Tanaka, S. H. and Yoshihara, H. I. and Ho, A. W. C. and Lau, F. W. and Westh, P. and Koga,Yoshikata}
}
@article {3848,
	title = {Intermolecular interactions in 2-butoxyethanol-DMSO-H2O},
	journal = {Journal of Physical Chemistry},
	volume = {100},
	number = {1},
	year = {1996},
	note = {ISI Document Delivery No.: TN839Times Cited: 15Cited Reference Count: 23},
	month = {Jan},
	pages = {433-438},
	type = {Article},
	abstract = {Excess partial molar enthalpy, H-B(E), and chemical potential, mu(B)(E), of 2-butoxyethanol (B) were determined in ternary mixtures of B, dimethyl sulfoxide (D), and H2O. The data were obtained in small enough mole fraction increments to evaluate the so-called interaction functions, partial derivative H-B(E)/partial derivative x(B), partial derivative H-B(E)/partial derivative x(D), partial derivative mu(B)(E)/partial derivative x(B), and partial derivative mu(B)E/partial derivative x(D). These interaction functions previously proved useful in elucidating the {\textquoteright}{\textquoteright}mixing schemes{\textquoteright}{\textquoteright} in binary aqueous solutions of B and D. For the binary mixtures, it was found that both B and D influenced H2O in the following manner: in the water-rich composition range (region I) within a certain threshold (x(B) < 0.0175 and x(D) < 0.28 at 25 degrees C), both solutes enhance the hydrogen-bonded network of water in their vicinity, and the mixtures retain the percolated nature of the network. At higher B or D concentrations (region II) a qualitatively different mixing scheme becomes operative. The results from this work suggest that, in the ternary mixtures, solute B and D influences the percolated hydrogen bond network of water competitively or cooperatively. The observed effects are in accordance with those characteristic of mixing scheme I in the binary mixtures, as long as the concentration of both solutes is within the threshold values. When either one of the solutes is concentrated beyond its threshold, mixing scheme II seems to set in. It was found that D diminished the positive (unfavorable) enthalpy of B-B interactions and that this effect was almost completely compensated by changes in interaction entropy. Hence, D had little net effect on the Gibbs energy of mutual B interactions, or in other words, D did not weaken the hydrophobic attraction between B molecules. Evaluation of {\textquoteright}{\textquoteright}heterogeneous{\textquoteright}{\textquoteright} B-D interactions in region I suggested that they were weaker than B-B interactions and governed by reorganization of water-water hydrogen bonding rather than interactions between specific groups in B and D. Some implications of these findings on cosolvent effects in aqueous solutions of biopolymers are discussed.},
	keywords = {AQUEOUS 2-BUTOXYETHANOL, denaturation, DIMETHYL-SULFOXIDE, LYSOZYME, MIXING SCHEME, MIXTURES, NEUTRON-DIFFRACTION, PARTIAL MOLAR ENTHALPIES, VOLUMES, WATER-RICH REGION},
	isbn = {0022-3654},
	url = {<Go to ISI>://A1996TN83900065},
	author = {Westh, P. and Koga,Yoshikata}
}
@article {3412,
	title = {EXCESS PARTIAL MOLAR ENTHALPIES, ENTROPIES, GIBBS ENERGIES, AND VOLUMES IN AQUEOUS DIMETHYLSULFOXIDE},
	journal = {Journal of Solution Chemistry},
	volume = {24},
	number = {1},
	year = {1995},
	note = {ISI Document Delivery No.: QF279Times Cited: 60Cited Reference Count: 20},
	month = {Jan},
	pages = {89-102},
	type = {Article},
	abstract = {The excess partial molar enthalpies, the vapor pressures, and the densities of dimethylsulfoxide (DMSO) - H2O mixtures were measured and the excess partial molar Gibbs energies and the partial molar volumes were calculated for DMSO and for H2O. The values of the excess partial molar Gibbs energies for both DMSO and H2O are negative over the entire composition range. The results for the water-rich region indicated that the presence of DMSO enhances the hydrogen bond network of H2O. Unlike monohydric alcohols, however, the solute-solute interaction is repulsive in terms of the Gibbs energy. This was a result of the fact that the repulsion among solutes in terms of enthalpy surpassed the attraction in terms of entropy. The data in the DMSO-rich region suggest that DMSO molecules form clusters which protect H2O molecules from exposure to the nonpolar alkyl groups of DMSO.},
	keywords = {2-BUTOXYETHANOL, 25-DEGREES-C, AQUEOUS DIMETHYLSULFOXIDE, DIMETHYL-SULFOXIDE, ENTROPIES, excess partial molar enthalpies, GIBBS ENERGIES AND VOLUMES, HEAT-CAPACITIES, LIQUID-MIXTURES, MIXING SCHEME, RANGE, SOLUTE-SOLUTE INTERACTION, TRANSITION, WATER-RICH REGION},
	isbn = {0095-9782},
	url = {<Go to ISI>://A1995QF27900007},
	author = {Lai, J. T. W. and Lau, F. W. and Robb, D. and Westh, P. and Nielsen, G. and Trandum, C. and Hvidt, A. and Koga,Yoshikata}
}
@article {3400,
	title = {FLUCTUATIONS IN AQUEOUS-SOLUTIONS OF SOME HYDROPHOBIC SOLUTES},
	journal = {Chemical Physics Letters},
	volume = {240},
	number = {4},
	year = {1995},
	note = {ISI Document Delivery No.: RG423Times Cited: 13Cited Reference Count: 33},
	month = {Jun},
	pages = {340-344},
	type = {Article},
	abstract = {The entropy fluctuation in liquids and solutions is most conveniently normalized to the coarse-grained volume. Hence, [(Delta S/V)(2)] = RC(p)/V-m(2) and [(Delta S/V)(Delta N/N)] = RT alpha(p)/V-m. It was shown to be useful if the response functions, C-p, kappa(T) and alpha(p), and the fluctuations derived from them, were discussed separately in contrasting the peculiar nature of liquid H2O against a typical van der Waals liquid, benzene. The composition dependence of these fluctuations was examined in aqueous solutions of typical hydrophobic solutes, 2-butoxyethanol, 2-butanone and tert-butanol. It was concluded that the above solutes reduce the hydrogen bond probability in H2O up to the crossover point of mixing scheme, x(i)(c).},
	keywords = {2-BUTOXYETHANOL, 25-DEGREES-C, FREE-ENERGIES, HEAT-CAPACITIES, MIXING SCHEME, PARTIAL MOLAR ENTHALPIES, TERT-BUTANOL MIXTURES, TRANSITION, VOLUMES, WATER-RICH REGION},
	isbn = {0009-2614},
	url = {<Go to ISI>://A1995RG42300015},
	author = {Koga,Yoshikata}
}
@article {3402,
	title = {IONIC-CONDUCTIVITY IN THE WATER-RICH REGION OF AQUEOUS 2-BUTOXYETHANOL},
	journal = {Canadian Journal of Chemistry-Revue Canadienne De Chimie},
	volume = {73},
	number = {8},
	year = {1995},
	note = {ISI Document Delivery No.: RZ492Times Cited: 4Cited Reference Count: 22},
	month = {Aug},
	pages = {1294-1297},
	type = {Article},
	abstract = {Ionic conductivities of HCl, KOH, and KCl were measured in aqueous solutions of 2-butoxyethanol (BE) at 25 degrees C. The quantity, Lambda(j){\textquoteright} = sigma/x(j), which is almost proportional to the molar conductivity, was extrapolated to the infinite dilution x(j) {\textendash}> 0. sigma is the conductivity and x(j) is the mole fraction of j(= HCl, KOH, or KCl). The plots of (0) Lambda(j){\textquoteright}, the value of Lambda(j){\textquoteright} extrapolated to infinite dilution, against x(BE) showed a change in slope at x(BE) = 0.0175. The previous work from this laboratory indicated that the mixing scheme changes qualitatively at the same locus, x(BE) = 0.0175. By mixing scheme we simply mean the way in which BE and H2O molecules mix with each other. Assuming additivity in (0)h(j){\textquoteright} in terms of constituent ions, those values for H+OH- were calculated. Plots of (0) Lambda(H+OH-){\textquoteright} thus calculated as a function of x(BE) in the water-rich region, 0 < x(BE) < 0.0175, suggest that the hydrogen bond probability decreases in the bulk of solution, as x(BE) increases.},
	keywords = {AQUEOUS 2-BUTOXYETHANOL, BOND NETWORK, HYDROGEN, IONIC CONDUCTIVITIES, MIXING SCHEME, MIXING SCHEMES, MIXTURES, PARTIAL MOLAR ENTHALPIES, SCATTERING, TRANSITION, VOLUMES},
	isbn = {0008-4042},
	url = {<Go to ISI>://A1995RZ49200008},
	author = {Koga,Yoshikata and Loo, V. J. and Puhacz, K. T.}
}
@article {3403,
	title = {Speeds of sound and isothermal compressibilities in the water-rich region of aqueous 2-butoxyethanol and 2-butanone at 25 degrees C},
	journal = {Journal of Solution Chemistry},
	volume = {24},
	number = {11},
	year = {1995},
	note = {ISI Document Delivery No.: TV702Times Cited: 8Cited Reference Count: 25},
	month = {Nov},
	pages = {1125-1133},
	type = {Article},
	abstract = {Speeds of sound were measured at 25 degrees C in the water-rich region of aqueous 2-butoxyethanol (BE) and 2-butanone (BUT). Density, heat capacity, and thermal expansivity data available in literature were used to calculate isothermal compressibilities, kappa(T). The composition derivative, N(partial derivative kappa(T)/partial derivative n(B)), a third derivative of Gibbs free energy, showed a peak anomaly at x(BE) = 0.0175 for BE-H2O, and bend at x(BUT) = 0.033 for BUT-H2O. n(B) (n(BE) or n(BUT)) is the amount of the solute and x(BE) and x(BUT) are the respective mole fractions. The location of these anomalies were the same as those of other third derivatives found earlier for the same aqueous solutions. These anomalies were shown earlier to mark the transition point across which the mixing scheme changes in a qualitative fashion.},
	keywords = {2-BUTANONE, 2-BUTOXYETHANOL, anomaly in the third derivative, aqueous solutions, ENTHALPIES, HEAT-CAPACITIES, isothermal compressibility, MIXING SCHEME, MIXTURES, of mixing scheme, PARTIAL MOLAR VOLUMES, RANGE, speed of sound, SYSTEMS, TRANSITION},
	isbn = {0095-9782},
	url = {<Go to ISI>://A1995TV70200004},
	author = {Koga,Yoshikata and Tamura, K. and Murakami, S.}
}
@article {3401,
	title = {VAPOR-PRESSURES OF DILUTE AQUEOUS T-BUTYL ALCOHOL - HOW DILUTE IS THE HENRYS LAW REGION},
	journal = {Journal of Physical Chemistry},
	volume = {99},
	number = {16},
	year = {1995},
	note = {ISI Document Delivery No.: QU828Times Cited: 18Cited Reference Count: 11},
	month = {Apr},
	pages = {6231-6233},
	type = {Article},
	abstract = {Vapor pressures of aqueous t-butyl alcohol (TBA) were determined at 25 degrees C by the static method in the mole fraction range, 0.000 068 < x(TBA) < 0.006. The partial pressures of TBA, p(TBA), and those of H2O, p(W), were calculated by a numerical integration method developed by Boissonnas. It was pointed out that this method inevitably introduces errors in the first few data points from the dilute end, which will be self-corrected after several data points. Together with the data obtained for the range x(TBA) > 0.002 in the previous work (J. Phys. Chem. 1990, 94, 7700), reliable values of the excess partial molar Gibbs function of TBA, G(m)(E)(TBA), were obtained. It was concluded that at the most dilute point measured, x(TBA) 0.000 068 (m(TBA) = 0.0038 mol/kg), the solution is not yet dilute enough for Henry{\textquoteright}s law to be obeyed.},
	keywords = {25-DEGREES-C, MIXING SCHEME, PARTIAL MOLAR ENTHALPIES, TERT-BUTANOL MIXTURES, WATER},
	isbn = {0022-3654},
	url = {<Go to ISI>://A1995QU82800069},
	author = {Koga,Yoshikata}
}
@article {3007,
	title = {EXCESS PARTIAL MOLAR VOLUMES AND THERMAL EXPANSIVITIES IN THE WATER-RICH REGION OF AQUEOUS 2-BUTANONE},
	journal = {Journal of Solution Chemistry},
	volume = {23},
	number = {2},
	year = {1994},
	note = {ISI Document Delivery No.: NB508Times Cited: 8Cited Reference Count: 22Symposium in Honor of Donald Patterson on His 65th Birthday, at the 76th Congress of the Canadian-Society-for-ChemistryMAY 31-JUN 03, 1993SHERBROOKE, CANADACANADIAN SOC CHEM},
	month = {Feb},
	pages = {339-349},
	type = {Proceedings Paper},
	abstract = {Excess partial molar volumes of 2-butanone V(m)E(B) and thermal expansivities alpha(p) were measured in the water-rich region of aqueous 2-butanone. The composition derivatives of both quantities showed anomalies at about X(B) = 0.033 (x(B) is the mole fraction of B). (partial derivative V(m)E(B)/partial derivative n(B))p,T,nW showed a step anomaly, while (partial derivative alpha(p)/partial derivatives n(B))p,T,nw exhibited a peak anomaly. The compositions at which these anomalies occurred match those of the step anomalies observed earlier in (partial derivative H(m)E(B)/partial derivative n(B))p,T,nW and (partial derivative S(m)E(B)/partial derivative n(B))p,T,nW in aqueous 2-butanone. These results are discussed in comparison with those obtained previously for aqueous 2-butoxyethanol.},
	keywords = {2-BUTANONE, 2-BUTOXYETHANOL, 25-DEGREES-C, ANOMALIES IN 3RD DERIVATIVES, AQUEOUS, DERIVATIVES, ENTHALPIES, EXCESS PARTIAL MOLAR VOLUMES, fluctuations, FREE-ENERGIES, HEAT-CAPACITIES, MIXING SCHEME, OF GIBBS FREE ENERGY, TERT-BUTANOL MIXTURES, THERMAL EXPANSIVITIES, TRANSITION, TRANSITION OF MIXING SCHEME},
	isbn = {0095-9782},
	url = {<Go to ISI>://A1994NB50800016},
	author = {Davies, J. V. and Fooks, R. and Koga,Yoshikata}
}
@article {7384,
	title = {EXCESS PARTIAL MOLAR FREE-ENERGIES, ENTHALPIES, AND ENTROPIES IN 2-BUTANONE-H2O MIXTURES - SOLUTE SOLUTE INTERACTIONS},
	journal = {Journal of Physical Chemistry},
	volume = {96},
	number = {24},
	year = {1992},
	note = {ISI Document Delivery No.: KA298Times Cited: 12Cited Reference Count: 19},
	month = {Nov},
	pages = {10025-10029},
	type = {Article},
	abstract = {The excess partial molar enthalpies, H(m)E(i), in 2-butanone (BUT)-H2O mixtures were measured at 4.20, 20.00, and 25.00-degrees-C (i = BUT or H2O). The vapor pressures were also measured by a static method at 20.00 and 25.00-degrees-C. From the latter data, the partial pressures and hence the excess partial molar Gibbs free energies, G(m)E(i), were calculated by the method. The excess partial molar entropies, S(m)E(i), were then calculated at 20.00 and 25.00-degrees-C. From the composition derivatives of these partial molar quantities, the nature of the solute-solute interactions was discussed in relation to the global information about the mixture: existence of phase separation, the way in which the phase boundary slants, and existence of azeotropy and addition compound.},
	keywords = {2-BUTOXYETHANOL, 25-DEGREES-C, BUTYL ALCOHOL, MIXING SCHEME, SCATTERING, TERT-BUTANOL MIXTURES, TRANSITION, WATER},
	isbn = {0022-3654},
	url = {<Go to ISI>://A1992KA29800080},
	author = {Wong, T. Y. H. and Wongmoon, K. C. and Beach, L. J. and Chuang, Y. F. and Koga,Yoshikata}
}
@article {7112,
	title = {EXCESS PARTIAL MOLAR ENTHALPIES IN THE WATER-RICH REGION OF THE ISOBUTYRIC ACID - WATER-SYSTEM},
	journal = {Canadian Journal of Chemistry-Revue Canadienne De Chimie},
	volume = {69},
	number = {7},
	year = {1991},
	note = {ISI Document Delivery No.: FY816Times Cited: 8Cited Reference Count: 24},
	month = {Jul},
	pages = {1065-1069},
	type = {Article},
	abstract = {The excess partial molar enthalpies of isobutyric acid (IBA), H(m)E(IBA), and those of H2O, H(m)E(H2O), were measured in aqueous solutions of IBA. The temperature dependence of H(m)E(IBA) at the infinite dilution suggested that the structure enhancement of the solvent H2O by IBA is weaker than those by tert-butanol (TBA) or 2-butoxyethanol (BE). The concentration dependence of H(m)E(IBA), and that of the enthalpic IBA-IBA interaction, N{partial H(m)E(IBA)/partial n(B)}, shows that there are two distinct mixing schemes bounded at about x(B) = 0.03, before reaching the two phase separation. Namely, the IBA-IBA interaction is repulsive below this boundary, while above this boundary it becomes attractive leading eventually to phase separation at a higher concentration. The transition between the two schemes is associated with a peak(negative) anomally in the fourth derivative of the free energy, N2 {partial H-2(m)E(IBA)/partial n(B)2}.},
	keywords = {2-BUTOXYETHANOL, CRITICAL SOLUTION TEMPERATURE, excess partial molar enthalpies, EXPONENT, INTERFACIAL-TENSION, ISOBUTYRIC ACID WATER, LIQUID WATER, MIXING SCHEME, TERT-BUTANOL MIXTURES, TRANSITION, TRANSITION IN, ULTRALOW, VICINITY, VISCOSITY},
	isbn = {0008-4042},
	url = {<Go to ISI>://A1991FY81600005},
	author = {Siu, W. W. Y. and Wong, T. Y. H. and Chao, L. C. F. and Koga,Yoshikata}
}
