chemical polarity

(redirected from Non-polar)

chemical polarity

[′kem·i·kəl pə′lar·əd·ē]
(physical chemistry)
Tendency of a molecule, or compound, to be attracted or repelled by electrical charges because of an asymmetrical arrangement of atoms around the nucleus.
References in periodicals archive ?
These extracts and fractions contained volatile, non-polar, and moderately polar constituents among which 81 were identified.
The desert, which spans parts of Chile and Peru, is the driest non-polar desert on Earth and may contain the environment most like that of the Red Planet, said the report in the Proceedings of the National Academy of Sciences.
The study found that while the amount of ozone over the poles has increased, the overall amount of ozone in the atmosphere has not gone up, indicating a thinning at non-polar latitudes.
Non-polar olefins, styrene containing material, more hydrophilic materials such as PA or fiber-reinforced types, all need their own chemistry to stick to them.
The him gmbh, Department for altlastentenanierung (him-asg) intends to award services for the sampling of samples from groundwater, Soil, Air and for the analysis of these samples on non-polar and polar explosive-type compounds as well as on non-explosive compounds (salts, Heavy metals, Icc, Btx, Laga, Depv etc.
These non-polar grades are soft, with high penetration hardness values and low melt points that allow flow out, coating and lubrication of the polymer chains.
Systane Balance contains Alcon's LipiTech System, a proprietary emulsion technology that is said to allow the polar and non-polar lipids in Systane to exist as a metastable microemulsion.
Considering that devices commonly contain (intentionally or not) both polar and non-polar substances, and the body is composed of both polar and non-polar fluids and membranes, extraction with both polar and non-polar solvents is required.
iPower technology employs lower frequency energy to quickly remove free moisture and penetrate the sample for fast and efficient heating, while higher frequency energy helps create a uniform heating environment to fully remove bound moisture or non-polar solvents.
The company says these spherical black pigments have been shown to be a one-to-one replacement for existing carbon blacks, with the advantage of superior dispersion in polar and non-polar polymers.
RC77 has improved temperature and chemical resistance, as well as good adhesion on polar and non-polar surfaces to ensure containers remain clearly identifiable throughout their lifetime.
For removing non-polar contaminants such as lubricating and cooling oils, greases and waxes, a solvent (lipophilic) will usually be the preferred cleaning agent.