View in EDS

Influence of temperature and anion type on thermophysical properties of aqueous solutions of morpholine based amino acid ionic liquids.

Saved in:
Bibliographic Details
Title: Influence of temperature and anion type on thermophysical properties of aqueous solutions of morpholine based amino acid ionic liquids.
Authors: Warmińska, Dorota1 (AUTHOR) dorwarmi@pg.edu.pl, Kloskowski, Adam1 (AUTHOR)
Source: Journal of Chemical Thermodynamics. Dec2023, Vol. 187, pN.PAG-N.PAG. 1p.
Subjects: Thermophysical properties, Aqueous solutions, Ionic liquids, Amino acids, Molecular volume, Ion-ion collisions, Dilution
Abstract: • Densities and sound velocities for four aqueous solutions of AAILs were measured. • AAILs are [Mor 1,4 ][N-Ac-L-Ala], [Mor 1,4 ][N-Ac-L-Val], [Mor 1,4 ][N-Ac-L-Leu], [Mor 1,4 ][N-Ac-L-Izoleu]. • Limiting apparent molar volumes, compressibilities and expansibility coefficients of aqueous AAILs were studied. • The hydrophobic effect determines ion–solvent and ion-ion interactions. Densities and sound velocities of aqueous solutions of N-butyl-N-methylmorpholine based amino acid ionic liquids (AAILs), including N-acetyl-L-alanine, N-acetyl-L-valinate, N-acetyl-L-leucinate, and N -acetyl-L-izoleucinate anions were measured at a temperature from 293.15 to 313.15 K at 5 K intervals and atmospheric pressure. These data were used to calculate the apparent molar volumes and the apparent molar compressibilities in the concentration range of (0.02 to 0.3) mol.kg−1. Infinite dilution values for the volumetric and acoustic properties were evaluated by an extrapolation procedure based on Redlich – Meyer type equations. The limiting apparent molar expansibility coefficients were also obtained from the slopes of the apparent molar volume at infinite dilution versus temperature. Using the Passynski method, the hydration numbers for AAILs in an aqueous medium were calculated. The results indicate that in the studied solutions, the ion–solvent interactions are determined by the hydrophobic effect, which results in the decrease of the limiting apparent molar compressibilities and an increase of limiting apparent molar expansibility coefficients in the order: [Mor 1,4 ][N-Ac-L-Ala], [Mor 1,4 ][N-Ac-L-Val], [Mor 1,4 ][N-Ac-L-Leu], [Mor 1,4 ][N-Ac-L-Izoleu]. The empirical slopes in Redlich –Rosenfeld – Meyer equations show that the hydrophobicity of amino acid anions is also responsible for the ion-ion interactions. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Chemical Thermodynamics is the property of Academic Press Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
FullText Text:
  Availability: 0
Header DbId: egs
DbLabel: Engineering Source
An: 171847909
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Influence of temperature and anion type on thermophysical properties of aqueous solutions of morpholine based amino acid ionic liquids.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Warmińska%2C+Dorota%22">Warmińska, Dorota</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> dorwarmi@pg.edu.pl</i><br /><searchLink fieldCode="AR" term="%22Kloskowski%2C+Adam%22">Kloskowski, Adam</searchLink><relatesTo>1</relatesTo> (AUTHOR)
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Journal+of+Chemical+Thermodynamics%22">Journal of Chemical Thermodynamics</searchLink>. Dec2023, Vol. 187, pN.PAG-N.PAG. 1p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Thermophysical+properties%22">Thermophysical properties</searchLink><br /><searchLink fieldCode="DE" term="%22Aqueous+solutions%22">Aqueous solutions</searchLink><br /><searchLink fieldCode="DE" term="%22Ionic+liquids%22">Ionic liquids</searchLink><br /><searchLink fieldCode="DE" term="%22Amino+acids%22">Amino acids</searchLink><br /><searchLink fieldCode="DE" term="%22Molecular+volume%22">Molecular volume</searchLink><br /><searchLink fieldCode="DE" term="%22Ion-ion+collisions%22">Ion-ion collisions</searchLink><br /><searchLink fieldCode="DE" term="%22Dilution%22">Dilution</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: • Densities and sound velocities for four aqueous solutions of AAILs were measured. • AAILs are [Mor 1,4 ][N-Ac-L-Ala], [Mor 1,4 ][N-Ac-L-Val], [Mor 1,4 ][N-Ac-L-Leu], [Mor 1,4 ][N-Ac-L-Izoleu]. • Limiting apparent molar volumes, compressibilities and expansibility coefficients of aqueous AAILs were studied. • The hydrophobic effect determines ion–solvent and ion-ion interactions. Densities and sound velocities of aqueous solutions of N-butyl-N-methylmorpholine based amino acid ionic liquids (AAILs), including N-acetyl-L-alanine, N-acetyl-L-valinate, N-acetyl-L-leucinate, and N -acetyl-L-izoleucinate anions were measured at a temperature from 293.15 to 313.15 K at 5 K intervals and atmospheric pressure. These data were used to calculate the apparent molar volumes and the apparent molar compressibilities in the concentration range of (0.02 to 0.3) mol.kg−1. Infinite dilution values for the volumetric and acoustic properties were evaluated by an extrapolation procedure based on Redlich – Meyer type equations. The limiting apparent molar expansibility coefficients were also obtained from the slopes of the apparent molar volume at infinite dilution versus temperature. Using the Passynski method, the hydration numbers for AAILs in an aqueous medium were calculated. The results indicate that in the studied solutions, the ion–solvent interactions are determined by the hydrophobic effect, which results in the decrease of the limiting apparent molar compressibilities and an increase of limiting apparent molar expansibility coefficients in the order: [Mor 1,4 ][N-Ac-L-Ala], [Mor 1,4 ][N-Ac-L-Val], [Mor 1,4 ][N-Ac-L-Leu], [Mor 1,4 ][N-Ac-L-Izoleu]. The empirical slopes in Redlich –Rosenfeld – Meyer equations show that the hydrophobicity of amino acid anions is also responsible for the ion-ion interactions. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Chemical Thermodynamics is the property of Academic Press Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=171847909
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.jct.2023.107148
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Thermophysical properties
        Type: general
      – SubjectFull: Aqueous solutions
        Type: general
      – SubjectFull: Ionic liquids
        Type: general
      – SubjectFull: Amino acids
        Type: general
      – SubjectFull: Molecular volume
        Type: general
      – SubjectFull: Ion-ion collisions
        Type: general
      – SubjectFull: Dilution
        Type: general
    Titles:
      – TitleFull: Influence of temperature and anion type on thermophysical properties of aqueous solutions of morpholine based amino acid ionic liquids.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Warmińska, Dorota
      – PersonEntity:
          Name:
            NameFull: Kloskowski, Adam
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 12
              Text: Dec2023
              Type: published
              Y: 2023
          Identifiers:
            – Type: issn-print
              Value: 00219614
          Numbering:
            – Type: volume
              Value: 187
          Titles:
            – TitleFull: Journal of Chemical Thermodynamics
              Type: main
ResultId 1