selective solvent

selective solvent

[si′lek·tiv ′säl·vənt]
(chemical engineering)
A solvent that, at certain temperatures and ratios with other materials, preferentially dissolves more of one component of a liquid or solids mixture than of another, thereby permitting partial separation.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
[5] analyzed the specific interactions of polysulfone-b-poly (alkylene oxide)b-poly(dimethylsiloxane) in a selective solvent at different temperatures by studying obtained thin film morphologies.
Method 8 utilizes the principle of selective solvent absorption (SSA) to capture sulfur trioxide (SO3) and H2SO4 in an isopropyl alcohol (IPA) solution.
Thus, THF is a suitable solvent for PF and a selective solvent for P2VP.
The highest efficiency was obtained with [[C.sub.6]mmPy][[Tf.sub.2]N] as the selective solvent.
On the other hand, the low tan [delta][][] I values observed for the extended sample in the interval -25[degrees]C to 40[degrees]C indicate that the selective solvent oil probably eliminates the PEB rich part of the PEB/PS interphase, thereby reducing the dimensions of the latter.
But since they were imposed, the EU's market has changed: the accession of Austria to the EU in 1995 has meant a new producer of the solvent has appeared on the scene - at the time of the duties, there was just one EU producer, Furfural Espa[currency]ol, S.A..Furfuraldehyde is used as a selective solvent in refining for the production of lubricating oils, and as a raw material for processing into furfural alcohol, used to make synthetic resin for foundry moulds.
It's an unusual selective solvent which we found gently removes cholesterol and fat from the egg yolk, while leaving the egg flavor unblemished." Carbon dioxide is a benign material, so no residue of the solvent is left behind after the extraction.
Methylene chloride is a selective solvent, removing only the caffeine and wax from the beans, leaving the coffee's flavor largely intact.
These factors includes block-selective solvent (DMF or 1,4-dioxane), the weight ratio of the selective solvent to common solvent and initial concentration.
We generally achieve this through a process known as "Selective Solvent Extraction." Quite simply, we apply a particular solvent to the product that we know will extract the item(s) of interest without harming them.
Carbon dioxide is an extremely selective solvent, it does not touch the carbohydrates (sugars and starch) and peptides (protein) which, during roasting, are converted to the compounds responsible for the flavor and aroma of brewed coffee.

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