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Dichlorodifluoromethane (R-12) is a colorless gas popularly known by the genericized brand name Freon (as Freon-12). It is a chlorofluorocarbon halomethane (CFC) used as a refrigerant and aerosol spray propellant .
International Chemical Safety Card 1106; NIOSH Pocket Guide to Chemical Hazards. "#0197". National Institute for Occupational Safety and Health (NIOSH). Termochemistry data at chemnet.ru; Entry at Air Gas Liquide Encyclopaedia Archived 2021-02-18 at the Wayback Machine
CFC-113 measured by the Advanced Global Atmospheric Gases Experiment in the lower atmosphere (troposphere) at stations around the world.Abundances are given as pollution free monthly mean mole fractions in parts-per-trillion.
Public health goal for trichlorofluoromethane in drinking water; Names at webbook.nist.gov; Data sheet at speclab.com Archived 2007-06-09 at the Wayback Machine; International Chemical Safety Card 0047; NIOSH Pocket Guide to Chemical Hazards. "#0290". National Institute for Occupational Safety and Health (NIOSH). Phase change data at webbook ...
Thomas Midgley Jr. (May 18, 1889 – November 2, 1944) was an American mechanical and chemical engineer.He played a major role in developing leaded gasoline (tetraethyl lead) and some of the first chlorofluorocarbons (CFCs), better known in the United States by the brand name Freon; both products were later banned from common use due to their harmful impact on human health and the environment.
Research in the 1980s said that these man-made CFC compound compounds had opened a hole in ozone layer in the upper atmosphere or stratosphere that protects life on earth from UV radiation. [ 5 ] CFC-13's ozone depletion potential (ODP) is high— 1 [ 9 ] ( CCl 3 F = 1)—it is categorized as a Class I in the IPCC's list of ozone-depleting ...
This is a data page for dichlorodifluoromethane. Physical properties. Property Value Density (ρ) at -29.8 °C (gas) 6.25 kg.m −3: Density (ρ) at 15 °C (gas)
The use of personal protective equipment may substantially reduce the risk of adverse health effects from contact with hazardous materials. [2] Long-term exposure to chemical hazards such as silica dust, engine exhausts, tobacco smoke, and lead (among others) have been shown to increase risk of heart disease, stroke, and high blood pressure. [3]