fluorocarbons


Also found in: Dictionary, Thesaurus, Encyclopedia.

fluorocarbons

[floo͡r′ōkär′bəns]
Etymology: L, fluere, to flow, carbo, coal
hydrocarbons where some or all of the hydrogens are replaced by fluorine. Fluorocarbons are generally colorless, nonflammable gases, but some are liquids at room temperature. The compounds can produce mild upper respiratory tract irritation, and excessive exposure has been cited as a cause of central nervous system depression.

fluorocarbons

Various organic compounds in which fluorine replaces hydrogen. The fluorocarbons are widely used as aerosol propellants, refrigerants and solvents and their release into the atmosphere is believed to offer a grave threat to the ecology of the planet because of their catalytic effect on the ozone layer. See also CHLOROFLUOROCARBONS.
References in periodicals archive ?
He also informed that Pakistan does not manufacture any of the Ozone Depleting Substances and we have a strict regulatory regime to check imports of these substances with a system of licensing and quotas for import of hydro fluorocarbons.
This description SVHC is often misunderstood and will be misinterpreted by many suppliers of alternative solvents based on fluorocarbon formulations and other exotic mixtures, implying the use of EnSolv (nPB) is subject to immediate restrictions on its usage, when offering these products.
Indeed, one of the strongest points for the introduction of Spiderwire Fluoro-Braid is as an alternative to fluorocarbon.
The law, aimed at halting emissions of three kinds of fluorocarbons, including chlorofluorocarbons (CFCs), will put violators behind bars for a maximum of one year or fine them up to 500,000 yen.
The problem, however, has been that fluorocarbons, while nontoxic, are not easily excreted by the body and tend to build up in tissue, which could cause health problems later.
Summary:Following a meeting with the European Commission, the European Fluorocarbon Technical Committee (EFCTC - a section of CEFIC - European Chemical Industry Federation) has expressed concern with the current proposal for a Council Regulation on ozone-depleting substances (COM(98)398).
And because fluorocarbons are applied so thin, scarifying such a surface by sanding or blasting causes additional problems.
Passive losses, the credit crunch, wetlands regulations, fluorocarbon phase-out, indoor air quality, lead print removal and the Americans With Disabilities Act are some of the areas of concentration for the 12 national real estate organizations.
Under the Fluorocarbons Emission Control Law, by 2025 all commercial condensing units with a refrigerating capacity above 1.
MONTREAL -- Minister for Climate Change Mushahidullah Khan has said that Pakistan after successfully phasing out the first generation of Ozone depleting substances is now in the process of phasing out hydro fluorocarbons.
Perc use for the production of alternative fluorocarbons and chemicals in North America will continue to be the largest market for the chemical.
Moreover, Mabury says the team was surprised to find ozone-depleting chlorofluorocarbons (CFCs) and greenhouse gases known as fluorocarbons coming from the heated materials.