Results 271 to 280 of about 1,287,454 (361)

Deep eutectic solvents: syntheses, properties and applications

Chemical Society Reviews, 2012
Within the framework of green chemistry, solvents occupy a strategic place. To be qualified as a green medium, these solvents have to meet different criteria such as availability, non-toxicity, biodegradability, recyclability, flammability, and low price
Qinghua Zhang, Karine De Oliveira Vigier, Sébastien Royer   +2 more
exaly   +2 more sources

Solvents and Solvent Effects in Organic Chemistry

, 1988
INTRODUCTION SOLUTE-SOLVENT INTERACTIONS Solutions Intermolecular Forces Solvation Preferential Solvation Micellar Solvation (Solubilization) Ionization and Dissociation CLASSIFICATION OF SOLVENTS Classification of Solvents According to Chemical ...
C. Reichardt
semanticscholar   +3 more sources

Solvent effect in a “solvent free” reaction

CrystEngComm, 2007
Vapour digestion of a mixture of solid [Fe(η5-C5H4–C5H4N)2] and solid pimelic acid HOOC(CH2)5COOH in the presence of solvent vapours generates co-crystals of different stoichiometry depending on the protic or aprotic nature of the solvent. The nature of the products has been ascertained by a combined use of SSNMR and X-ray diffraction.
BRAGA D, GIAFFREDA SL, GREPIONI F, CHIEROTTI, Michele Remo, GOBETTO, Roberto, PALLADINO G, POLITO M.   +6 more
openaire   +4 more sources

Determinations of total carotenoids and chlorophylls a and b of leaf extracts in different solvents

, 1983
Various equations for the determinations of total chlorophyll and individual amounts of chlorophylls a and b in extracts from plant tissues exist (see Holden, 1976) and some of them (e.g. Arnon, 1949) are widely used.
H. Lichtenthaler, A. Wellburn
semanticscholar   +1 more source

NMR Chemical Shifts of Common Laboratory Solvents as Trace Impurities.

Journal of Organic Chemistry, 1997
In the course of the routine use of NMR as an aid for organic chemistry, a day-to-day problem is the identification of signals deriving from common contaminants (water, solvents, stabilizers, oils) in less-than-analytically-pure samples. This data may be
H. Gottlieb, V. Kotlyar, A. Nudelman
semanticscholar   +1 more source

Study of solute–solvent and solvent–solvent interactions in pure and mixed binary solvents

Journal of Molecular Liquids, 2008
Abstract Solute–solvent and solvent–solvent interactions have been studied in fifteen pure solvents and seven binary aqueous mixtures by monitoring the solubility of a dye in the solvents. The standard Gibbs energy of solvation, as given by log s , where s is the solubility has been found to depend on various modes of solute–solvent interaction ...
Sanjib Bagchi, Angshuman Maitra
openaire   +2 more sources

Solvents and Solvent Effects:  An Introduction [PDF]

Organic Process Research & Development, 2006
Solution chemistry is carried out in solvents, that is in liquids under the conditions of application, which can exert a considerable influence on the properties of the dissolved solute species. A short historical overview on the influence of solvents on chemical processes (equilibria, reaction rates) and physical processes (absorption spectra ...
openaire   +1 more source

Review on Extraction of Phenolic Compounds from Natural Sources Using Green Deep Eutectic Solvents.

Journal of Agricultural and Food Chemistry, 2021
For more sustainable and environmentally friendly scientific research, it is essential to apply green chemistry principles in all areas of science. A possible area in which green chemistry principles can significantly influence the productivity and the ...
A. Ali Redha
semanticscholar   +1 more source