Authors:
L. Li Liaocheng University College of Chemistry and Chemical Engineering Liaocheng Shandong 252059 P.R. China

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L. Zhu Liaocheng University College of Biological Science Liaocheng Shandong 252059 P.R. China

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X. Qiu Liaocheng University College of Chemistry and Chemical Engineering Liaocheng Shandong 252059 P.R. China

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D. Sun Liaocheng University College of Chemistry and Chemical Engineering Liaocheng Shandong 252059 P.R. China

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Y. Di Liaocheng University College of Chemistry and Chemical Engineering Liaocheng Shandong 252059 P.R. China

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Abstract  

The dilution enthalpies of D-mannitol and D-sorbitol in aqueous sodium chloride solution at various concentrations have been determined by isothermal microcalorimetry at 298.15 K. The homogeneous enthalpic interaction coefficients over a quite large range of concentration of aqueous sodium chloride solutions have been calculated according to the excess enthalpy concept. The results show that enthalpic pairwise interaction coefficients (h2) of D-mannitol and D-sorbitol are positive in aqueous sodium chloride solution and become more positive with increase of the concentration of sodium chloride. The results are interpreted in terms of the different conformations of the two polyols, solute-solute and solute-solvent interactions involved by solvent effects.

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation
1969
Volumes
per Year
1
Issues
per Year
24
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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