Ultrasonic velocity measurements of carbohydrates in binary mixtures of DMSO + H2O at 25°C

Syal, V. K.; Chauhan, Suvarcha; Gautam, Rajneesh

doi:10.1016/s0041-624x(97)00104-2

Cited by 45 publications

(26 citation statements)

References 6 publications

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“…A similar effect has been reported by Syal et al for the case of sucrose in AN + water [14] and DMSO + water [15] solvent mixtures. This shows that solute-solvent interactions, although present, do not alter the solvent-solvent interactions already present in the binary mixtures.…”

Section: Discussionsupporting

confidence: 88%

“…Such maxima in the ultrasonic velocity have also been reported [13] at 16 mass% MeOH and 25 mass% EtOH in MeOH-water and EtOH-water mixtures, respectively, which show close agreement between the experimental values of this study and literature results. Also, in acetonitrile (AN) + water mixtures [14] there occurs a maximum at 10 mol% of AN which has been ascribed to the fact that in higher water regions of these solvent mixtures, the extent of hydrogen bonding is considerably affected by the addition of co-solvent AN and AN acts as a structure breaker.…”

Section: Discussionmentioning

confidence: 99%

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Ultrasonic Velocity Studies of Drug Parvon-spas in Mixed Alcohol–Water Solvent Systems at 25°C

et al. 2005

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Ultrasonic velocities and densities of the drug Parvon-spas in binary mixtures of water with methanol (MeOH), ethanol (EtOH), and propan-1-ol (1-PrOH) have been measured over the complete solvent composition range at 10 mol% intervals at 25 • C. Various acoustic parameters such as the acoustic impedance (Z), adiabatic compressibility (β), intermolecular free length (L f ), relative association (R.A.), molar volume (V m ), and molar sound velocity (R m ) have been calculated. In addition, excess functions, i.e., excess adiabatic compressibility (β E ), excess intermolecular free length (L E f ), excess molar volume (V E ), excess ultrasonic velocity (U E ), and excess acoustic impedance (Z E ) for these three solvent mixtures in the absence and presence of the drug have been calculated. A different behavior of these parameters in these alcohol systems has been discussed in terms of the length of the alcohol molecule, the molecular volume, as well as inter/intramolecular interactions of these molecules.

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Section: Discussionsupporting

confidence: 88%

Section: Discussionmentioning

confidence: 99%

Ultrasonic Velocity Studies of Drug Parvon-spas in Mixed Alcohol–Water Solvent Systems at 25°C

et al. 2005

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“…4(a). Based on the Stokes peak, the Brillouin shift was measured to be 8.395 ± 0.008 GHz with a linewidth of 1.674 ± 0.037 GHz, which is in good agreement with previous reports [22]. In the case of the DMSO solution with added scattering agents (coffee cream), the Brillouin components become visible when the iodine cell is heated up to 80 °C.…”

Section: Resultssupporting

confidence: 90%

Background clean-up in Brillouin microspectroscopy of scattering medium

2014

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Abstract:Brillouin spectroscopy is an emerging tool for microscopic optical imaging as it allows for non-contact, non-invasive, direct assessment of the elastic properties of materials. However, strong elastic scattering and stray light from various sources often contaminate the Brillouin spectrum. A molecular absorption cell was introduced into the virtually imaged phased array (VIPA) based Brillouin spectroscopy setup to absorb the Rayleigh component, which resulted in a substantial improvement of the Brillouin spectrum quality.

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“…caused by solute at a particular ionic strength and dielectric constant of the medium. This observation is consistent with some previous works [20][21] . The adiabatic compressibility (β) increases with the increase in content of EMK in the mixture at all the temperatures.…”

Section: Adiabatic Compressibilitysupporting

confidence: 94%

Study of Acoustic Nature of Tetrapentylammonium Bromide in N,N-Dimethyl-Ethylmethyl Ketone Systems at Different Temperatures

Patial¹

2015

ILCPA

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Ultrasonic velocity, viscosity and density studies on solution of tetrapentylammonium bromide (Pen 4 NBr) in N,N-dimethylformamide, ethylmethylketone (EMK) and DMF-EMK solvent mixtures containing 0, 20, 40, 60, 80 and 100 mol % of DMF at 298, 308 and 318K have been reported. From the velocity, viscosity and density data values, various parameters namely, the adiabatic compressibility (β), Intermolecular free length (L f ), specific acoustic impedance (Z), free volume (V f ), internal pressure (π i ) and relaxation time (τ) have been calculated. All these parameters have been discussed separately to throw light on the solute-solvent and solvent-solvent interactions.

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Ultrasonic velocity measurements of carbohydrates in binary mixtures of DMSO + H2O at 25°C

Cited by 45 publications

References 6 publications

Ultrasonic Velocity Studies of Drug Parvon-spas in Mixed Alcohol–Water Solvent Systems at 25°C

Ultrasonic Velocity Studies of Drug Parvon-spas in Mixed Alcohol–Water Solvent Systems at 25°C

Background clean-up in Brillouin microspectroscopy of scattering medium

Study of Acoustic Nature of Tetrapentylammonium Bromide in N,N-Dimethyl-Ethylmethyl Ketone Systems at Different Temperatures

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