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Showing 1 to 20 of 46 for “"ethanol-water"”.
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The dielectric spectra of ethanol-water mixtures in the microwave region.
Massachusetts Institute of Technology. Dept. of Chemistry. Thesis. 1965. Ph.D.
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Physicochemical and pharmacodynamic effects of ethanol, water type and proofing method on the perceived sensory properties of distilled spirits
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2024-05-01
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Impact of mixed solvent on co-crystal solubility, ternary diagrams and crystallisation scale-up. Crystallisations of Isonicotinamide ¿Benzoic Acid Co-crystals from Ethanol ¿Water Co-solvent System.
… The growth of co-crystals was carried out in water, ethanol and ethanol / water mixed solvent (30 - 90 % ethanol) by utilising the Cryo-Compact circulator. Co-crystals (1:1) and (2:1) were grown in ethanol and water respectively and a mixture of both phases were grown in the mixed solvent. All …
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ZSM-5/thermoplastic polyurethane mixed matrix membranes for pervaporation of dilute aqueous organic solvents
… for efficient pervaporation of n-butanol and ethanol from dilute aqueous solutions as a cheap and easy to fabricate replacement for the benchmark polydimethylsiloxane (PDMS) membranes. Binary systems of n-butanol-water and ethanol-water were tested along with a ternary system of …
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Thermal diffusion near a binary liquid azetrope
… factors and steady state separations in the ethanol-water mixture at its azeotropic composition. The thermogravitational diffusion column was calibrated using the value of the thermal diffusion factor of the cyclohexane-benzene mixture, which had been previously determined at 25°C. The …
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Zein encapsulation of amphiphilic compounds
… obtained by evaporation induced self-assembly of ethanol-water systems. A second objective was to apply the knowledge learned in the above objective to propose a strategy to capture and encapsulate flavors generated in frying oils. Results showed that citral was effectively encapsulated with zein. …
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Separation of solvents from selected biopolymeric matrixes and aqueous mixtures by ultrasound
… bottleneck in azeotrope-forming systems (e.g., ethanol + water). While a few conventional distillation technologies and new separation approaches have been developed for azeotropes, they rely largely on separation via phase equilibrium, or involve large capital, energy, or other operating costs. …
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Chemical aspects of some ovine hepatogenous photosensitization diseases
… room temperature and 37°c. Administration of an ethanol-water suspension of sarsasapogenin β-D-glucoside to a sheep afforded a maximum level of episarsasapogenin in bile samples 12 hours after dosing. Elevated levels of free sarsasapogenin and low levels of conjugated sarsasapogenin, free and …
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Dynamics of liquids in porous media: Investigating competitive adsorption using NMR relaxometry
… modelling approach was applied to alcohol-water mixtures within the same porous medium, and showed an increased level of microphase separation for aqueous solutions with longer alcohols as well as tetrahydrofuran. This effect was shown not to depend on the bulk miscibility of the mixture, …
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Autohydrolysis of Miscanthus X giganteus for the production of xylooligosaccharides
… be a value added coproduct for the cellulosic ethanol industry. There is lack of information on the production of XOS in conjunction with cellulosic ethanol processes, especially with MxG. The objective of this study was to investigate the production, purification, characterization and …
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A polarographic study of the reduction of unsymmetrical benzils.
… benzils were synthesized and studied in 50% ethanol-water (by volume) solvent systems buffered at pH 1, 5, and 13. The results showed that, with unsymmetrical benzils substituted with electron-withdrawing or electrondonating groups, the carbonyl closest to the ring with the least …
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Drug nanosizing using microfluidic reactors. Development, characterisation and evaluation of corticosteroids nano-sized particles for optimised drug delivery.
… Arrested antisolvent nanoprecipitation using ethanol (solvent) and water (antisolvent) was conducted within the microreactors. To enable experimental design for the microreactor studies, solubility profiles in different ethanol-water combinations at 25 °C were explored. All three drugs¿ …
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Characterization of ethanol induced protein gels by ultra-small angle x-ray scattering and rheological measurements
… zein and whey protein, were examined in ethanol-water mixture. Zein is an amphiphilic protamine which is capable of self-assembly into distinctly different structures. Self-assembly of zein at high protein concentrations was studied in binary solvent systems of ethanol and water. …
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Synthetic and spectroscopic studies of 6-substituted chromone derivatives
… flash chromatography or recrystallization using ethanol-water. The yields of chromone-2-carboxylic acids ranged from 85-90 %, those of the chromone-2-carboxamides ranged from 40-72 %, and for the Suzuki reaction the yields ranged from 40-55 %. The compounds synthesized were analysed by I H and …
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Crystal Engineering of Flavonoids
… they have limited bioavailability and poor water solubility. Several new forms of quercetin and hesperetin in the form of solvates and cocrystals were synthesized. These new crystal forms were characterized by various techniques: FT-IR, DSC (Differential Scanning Calorimetry), single X-ray …
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Vapour-Liquid equilibria at Low Concentration of One Component
… has been tested using the binary mixtures; methanol-water, ethanol-water over the temperature range 25°C to 65°C. Data obtained has been compared with literature values, when available, and the behaviour of the mixtures approaching infinite dilution shown to correspond to that expected from …
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Hydrothermal liquefaction of spirulina with aqueous phase recirculation
… but also a large amount of processing wastewater. This study mainly focuses on the recirculation of the aqueous phase from HTL in order to effectively address the aqueous phase treatment problems. Spirulina, a kind of high protein content microalgae, is chosen as a promising feedstock in …
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Synthesis and Characterization of Monosaccharide-derived Low Molecular Weight Gelators
… in aqueous and organic solvents, such as hexane, ethanol, water, and aqueous DMSO or ethanol mixtures.</p>
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