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Effect of DBU (1,8-diazobicyclo[5.4.0]undec-7-ene) based protic ionic liquid on the volumetric and ultrasonic properties of ascorbic acid in aqueous solution
Dharmendra Singh,
Published in American Chemical Society
2015
Volume: 54
   
Issue: 7
Pages: 2237 - 2245
Abstract
In order to understand the strength and type of interactions involved in ternary solutions, the effect of solute or cosolute concentration and temperature is needed, as an understanding of these interactions is helpful in biochemical and biophysical chemistry. In this regard, we have studied the volumetric and ultrasonic properties of one of the most important vitamins, i.e., ascorbic acid, in water and in the presence of newly synthesized protic ionic liquid (1,8-diazabicyclo[5.4.0]undec-7-en-8-ium trifluoroacetate) at temperatures of 293.15-328.15 K and at atmospheric pressure. The experimentally measured density and speed of sound data were used to calculate apparent molar volume and isentropic compressibility, infinite dilution partial molar volume, and partial molar isentropic compressibility. Volume of transfer (ΔtV2° and ΔtK°s,2), expansion coefficients, pair and triplet volumetric interaction coefficients were also evaluated and discussed in terms of various interactions occurring between ascorbic acid and PIL on the basis of the structural interaction model. © 2015 American Chemical Society.
About the journal
JournalData powered by TypesetIndustrial and Engineering Chemistry Research
PublisherData powered by TypesetAmerican Chemical Society
ISSN08885885
Open AccessNo
Concepts (16)
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    Atmospheric pressure
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    Biosynthesis
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    Compressibility
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    Ionic liquids
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    Liquids
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    Organic acids
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    Volume measurement
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    Apparent molar volume
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    BIOPHYSICAL CHEMISTRIES
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    EXPANSION COEFFICIENTS
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    Interaction coefficient
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    Isentropic compressibility
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    PARTIAL MOLAR ISENTROPIC COMPRESSIBILITIES
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    STRUCTURAL INTERACTIONS
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    ULTRASONIC PROPERTIES
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    Ascorbic acid