Liquid structure of urea - water system studied by dielectric spectroscopy
Article Abstract:
Dielectric spectroscopy measurements for aqueous urea solutions are carried out at 298 K through a concentration range from 0.5 to 9.0 M with frequencies between 200 MHz and 40 GHz. Findings indicate that the number of hydration water molecules is roughly two per urea molecule for the lower concentration region below 5.0 M, while the previous molecular dynamics studies predicted about six water molecules.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2007
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Comparative study of urea and betaine solutions by dielectric spectroscopy: liquid structures of a protein denaturant and stabilizer
Article Abstract:
Dielectric spectroscopy measurements are performed on aqueous solutions of glycine betaine over a wide concentration range. The dielectric relaxation time has increased with betaine concentration, while it remains nearly constant for the urea-water system over a wide concentration range.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2007
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Raman scattering study of high-pressure phase transition in thiourea
Article Abstract:
A high-pressure Raman spectroscopic study of phase transitions in thiourea with increasing and decreasing pressure followed to a maximum pressure of approximately 11 GPa is presented.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2007
User Contributions:
Comment about this article or add new information about this topic:
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