• Chlorofluorocarbons, known as "CFCs" for short, are carbon atoms or chains with the halide elements fluorine and chlorine substituted for hydrogen atoms. (blogspot.com)
  • What are Chlorofluorocarbons (CFCs)? (ecoonline.com)
  • Chlorofluorocarbons (CFCs) are generally a mixture of chemicals that are commonly used as a refrigerant. (ecoonline.com)
  • Chlorofluorocarbons (CFCs) are generally colorless and odorless, which is why they are a bit more difficult to detect. (ecoonline.com)
  • The Montreal Protocol, signed in 1987, gradually phased out the production and use of chlorofluorocarbons (CFCs) and hydrofluorocarbons (HCFCs), both of which deplete the ozone layer. (kaiterra.com)
  • This important chemical manufacturer successfully handled the ozone hole crisis linked to chlorofluorocarbons (CFCs) such Freon, used as refrigerant gas, of which they were one of the main producers. (paristechreview.com)
  • Humanity, however, has for many years been depleting this ozone layer by releasing human-made chlorofluorocarbons (CFCs). (wikisummaries.org)
  • In light of the problem of ozone layer depletion which is of note in recent years, the restrictions on CFCs (chlorofluorocarbons) and HCFCs (hydrochlorofluorocarbons) that are used as refrigerants in conventional refrigerating machines have become more stringent, and HFCs (hydrofluorocarbons) are coming into use as substitute refrigerants. (justia.com)
  • We do this through greener materials, including recycled polyethylene terephthalate (PET), PDVC-free packaging, bio-based, compostable materials, and home product materials that that allow use the use of eco-friendly hydrofluoroolefins (HFOs) instead of chlorofluorocarbons (CFCs). (spartech.com)
  • Among the most common hydrogenated hydrocarbons are CFCs (chlorofluorocarbons), HCFCs (hydro chlorofluorocarbons) and, the most recent substitutes, HFCs (hydrofluorocarbons). (settalagas.it)
  • Earth's ozone layer acts as a protective shield, absorbing and blocking harmful radiation from the Sun. In the 1970s, scientists began to worry that the ozone layer was being depleted by manufactured chemicals like chlorofluorocarbons, or CFCs, commonly used as a refrigerant and in aerosols. (theplayhousesanews.org)
  • HCFCs and HFCs are widely used substitutes for chlorofluorocarbons (CFCs) that have been found to contribute to the loss of stratospheric ozone. (sdstate.edu)
  • Section 608 already includes requirements for chlorofluorocarbons (CFCs) and HFCs like R-410a. (acca.org)
  • Depletion of stratospheric ozone was tied to the use of chlorofluorocarbons (CFCs). (climaterealists.ca)
  • By the time the problem was discovered there were relatively inexpensive substitutes available so CFCs were banned in 1987 under the Montreal Protocol. (climaterealists.ca)
  • Among the chemicals most threatening to the ozone layer are chlorofluorocarbons (CFCs). (thermalfluidscentral.org)
  • CFCs are odorless, non-toxic, non-flammable and inexpensive chemicals originally used as a substitute to ammonia, which was the primary coolant in refrigerators. (thermalfluidscentral.org)
  • HFCs were originally developed in the 1990s as a substitute to chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HFCFs) which deplete the ozone layer. (msasafety.com)
  • Atmospheric constituents such as chlorofluorocarbons (CFCs) and CFC substitutes, greenhouse gases, and nitrogenous and sulfurous compounds undergo photochemical reactions either directly or indirectly in the presence of sunlight. (pure8.co)
  • By the mid-1980s, gaping holes in the layer had begun to appear, linked to the world's consumption of such chemicals as halons (in fire extinguishers) and chlorofluorocarbons, or CFCs (in refrigeration, air conditioning and aerosol propellants). (mtlurb.com)
  • The CFCs have been substituted by hydrochlorofluorocarbons as a solution to the ozone layer issue, however, HCFC has high global warming potential, thereby, leading to other environmental issues. (fairconditioning.org)
  • The international regimes dealing with the protection of stratospheric ozone and with climate change exhibit inherent links both because chlorofluorocarbons (CFCs), which are the central concern of the ozone regime, are also potent greenhouse gases and because a number of the chemicals that seem attractive as substitutes for CFCs are greenhouse gases as well (Oberthür, 1999). (nationalacademies.org)
  • Three decades ago the United States, Japan, and the European nations entered into a treaty to limit the use of chlorofluorocarbons (CFCs) and other ozone-depleting chemicals. (amacad.org)
  • On the one hand, the technologies accounting for most of the ozone-depleting chemicals were highly concentrated in a few industries, and close substitutes for CFCs existed. (amacad.org)
  • Fluorinated gases are sometimes used as substitutes for stratospheric ozone-depleting substances (e.g., chlorofluorocarbons, hydrochlorofluorocarbons and halons). (nh.gov)
  • The hydrocarbon refrigerant also substitutes Chlorofluorocarbon (CFC), Hydrochlorofluorocarbons (HCFCs) and Hydrofluorocarbons (HFCs), which are gases used in refrigeration and the air conditioning industry. (evwind.es)
  • By investing alongside with public authorities in research, they developed a substitute technology, hydrochlorofluorocarbons, less harmful for the environment but also, above all, protected by new patents. (paristechreview.com)
  • For decades, air conditioners almost exclusively ran on chlorofluorocarbon (CFC) or hydrochlorofluorocarbon (HCFC) gases, which are thought to be up to 10,000 times as bad as CO2 in terms of global warming impact. (gulfnews.com)
  • The products used today and offered by Settala Gas are HCFC - Hydro chlorofluorocarbons - and HCF - Hydrofluorocarbons. (settalagas.it)
  • The fluorinated refrigerants such as chlorofluorocarbon (CFC), hydrochloric fluorocarbons (HCFC), perfluorocarbons (PFC), hydrofluoro ethylene (HFE) and hydrofluorocarbons (HFC) have one common element, fluorine which is a chemical substance represented by the symbol 'F'. On the other hand, the non-fluorinated refrigerants lack the element fluorine and they are referred to as natural refrigerants. (fairconditioning.org)
  • The compound has also been studied as a refrigerant substitute for ozone-depleting chlorofluorocarbon refrigerants. (credenceresearch.com)
  • It has therefore become an urgent issue to develop refrigerants that can be used as substitutes for HFC-134a. (justia.com)
  • In light of this background it has been proposed to use, as substitute refrigerants for HFC-134a, fluoropropene refrigerants which have very low ODP and GWP, are noncombustible and are comparable or superior to HFC-134a in terms of their thermodynamic properties, as a measure of refrigerant performance. (justia.com)
  • F. Sherwood Rowland and Mario J. Molina warned that chlorofluorocarbon gases may be destroying the ozone layer of Earth's stratosphere. (wikisummaries.org)
  • Another major area is the search for substitutes to the refrigerant gases used in most of the nearly two billion installed AC units, according to the International Energy Agency. (gulfnews.com)
  • The gases were nothing but a mixture of carbon, fluorine, and chlorine, and they were known as chlorofluorocarbons. (homeful.in)
  • Carbon tetrachloride is a feedstock for chlorofluorocarbon gases, such as dichlorodifluoromethane (F-12) and trichlorofluoro methane (F-11), which were used as aerosol propellants in the 1950s and 1960s (Holbrook 1991). (cdc.gov)
  • The FDA banned the sale of carbon tetrachloride in any product used in the home and the EPA regulated the use of chlorofluorocarbon gases as aerosols or propellants. (cdc.gov)
  • 1-Bromopropane is an industrial solvent often used as a substitute for a number of chlorofluorocarbon solvents which have been withdrawn from use because of their possible damaging effects to the ozone layer. (cdc.gov)
  • Starting in the 1970s, researchers began to worry that the ozone layer, which protects Earth from the Sun's harmful ultraviolet rays, was being damaged by a new breed of chemicals called chlorofluorocarbons. (theplayhousesanews.org)
  • In the early 90s, the world dealt with banning the ozone layer issue as the layer was getting depleted because of the leakage of chlorofluorocarbons (CFC) from cooling devices. (fairconditioning.org)
  • Usually, the refrigerant gas comprises tetra fluoro ethane instead of ammonia, sulphur, and chlorofluorocarbons, which are considered harmful to the ozone layer. (homeful.in)
  • Hence, to safeguard people's health and ensure that the ozone layer is not affected, scientists took several measures to find the perfect refrigerant gas which would act as a suitable substitute for chlorofluorocarbons, which might also be safe for the ozone layer. (homeful.in)
  • chlorofluorocarbon A compound consisting of chlorine, fluorine, and carbon. (epa.gov)
  • Sections within Title VI cover production of ozone-depleting substances (ODS), the recycling and handling of ODS, the evaluation of substitutes, and efforts to educate the public. (epa.gov)
  • It is distressing to learn that when substituting an apparently "safer" alternative to perchlroethylene in the dry cleaning industry, we may have created a new clinical problem. (cdc.gov)
  • Industry has poured hundreds of million of dollars into research and development of safer chemical substitutes for use in such processes as refrigeration. (mtlurb.com)
  • In recent years we have seen an increase in the use of the solvent 1-bromopropane (1-BP) as a substitute for ozone-depleting chlorofluorocarbons and other regulated compounds. (cdc.gov)
  • Efforts to reduce the use of the ozone-depleting, chlorofluorocarbons, like perchloroethylene, have led to the promotion of substitute degreasing and dry cleaning solvents. (cdc.gov)
  • The current rules under Section 608, prohibit a technician from knowingly venting HFC substitutes during the maintenance, service, repair, or disposal of appliances. (acca.org)
  • Octafluorocyclobutane is a non-flammable and colorless gas studied as a possible dielectric gas substitute for sulfur hexafluoride. (credenceresearch.com)
  • But the money sanctioned by the Multilateral Fund for projects that will help developing countries move towards the use of substitutes to ods is inadequate. (org.in)
  • Act legislation (see Section 5.1), the chemical is only available for those uses for which no effective substitute has been found. (cdc.gov)
  • Compliance and smuggling of chlorofluorocarbons ( cfc s) may be problem areas, but the development of substitutes and transfer of technology are issues inadequately addressed by the protocol. (org.in)
  • Once such substitute, 1-bromopropane (1-BP), is an effective degreaser and reduces ozone depletion, but it is not without risks. (cdc.gov)
  • Fluorinated gases are sometimes used as substitutes for stratospheric ozone-depleting substances (e.g., chlorofluorocarbons, hydrochlorofluorocarbons and halons). (nh.gov)
  • In fact Chlorofluorocarbons contribute far more strongly to greenhouse gas emissions than is generally recognized. (peopleandplanet.net)
  • The core of the system is a liquid chlorofluorocarbon (CFC) substitute, which circulates around the CPU to draw away heat and has low greenhouse effects. (electronics-cooling.com)
  • Chlorofluorocarbons, on the other hand, are fully or partly halogenated paraffin hydrocarbons, which are known to have a significant environmental impact due to their ozone depletion potential (Sidz Cool Care) . (dodomachine.com)
  • Methanes substituted with three halogen atoms, which may be the same or different. (nih.gov)
  • In addition, several extinguishing agents (Halon 1211 and potential substitutes such as hydrogenated chlorofluorocarbons ) are also considered hazardous chemicals by nature of their associated health hazards . (ilpi.com)
  • Through the rest of the century, air conditioning grew from a luxury to a necessity, while Freon and other chlorofluorocarbons chewed holes in the planet's protective ozone layer. (ehn.org)
  • The principal purpose of the CRN is to collect, purify and recycle chlorofluorocarbon 12 (CFC-12), primarily taken from old refrigerators. (temasactuales.com)
  • The first green-tech developments of that era were chlorofluorocarbon (CFC)-free refrigerators and aerosol sprays. (thelyfestyle.ca)
  • Changes (retrofitting/replacement) to the existing production lines for the both the foaming and refrigerant operations, to enable usage of the substitute technology (with low/zero ozone depleting potential). (solutions-site.org)
  • chemical companies continue to develop various types of CFC substitutes. (citywatchla.com)
  • Efforts to reduce the use of the ozone-depleting, chlorofluorocarbons, like perchloroethylene, have led to the promotion of substitute degreasing and dry cleaning solvents. (cdc.gov)
  • It is distressing to learn that when substituting an apparently "safer" alternative to perchlroethylene in the dry cleaning industry, we may have created a new clinical problem. (cdc.gov)
  • Act legislation (see Section 5.1), the chemical is only available for those uses for which no effective substitute has been found. (cdc.gov)
  • SNAP is globally recognized as the only program designed specifically to evaluate substitutes for ODS and to focus on the industrial sectors that use them. (calthacompany.com)