Dichlorodifluoromethane
Dichlorodifluoromethane structure
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Common Name | Dichlorodifluoromethane | ||
|---|---|---|---|---|
| CAS Number | 75-71-8 | Molecular Weight | 120.91400 | |
| Density | 1.329 | Boiling Point | -29.79°C | |
| Molecular Formula | CCl2F2 | Melting Point | -158°C | |
| MSDS | N/A | Flash Point | 11 °C | |
| Symbol |
GHS02, GHS06, GHS08 |
Signal Word | Danger | |
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Simultaneous determination of CFC-11, CFC-12 and CFC-113 in seawater samples using a purge and trap gas-chromatographic system
Talanta 80(2) , 959-66, (2009) We have optimized the analytical parameters of a homemade instrument for the simultaneous measurement of the chlorofluorocarbons CCl 2F 2 (CFC-12), CCl 3F (CFC-11) and C 2Cl 3F 3 (CFC-113) in seawater. Seawater samples are flame sealed into 60 ml glass ampoul... |
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Background monitoring and long-range transport of atmospheric CFC-11 and CFC-12 at Kosan, Korea.
Environ. Monit. Assess. 70(1-2) , 47-56, (2001) The background concentrations of atmospheric CFC-11 and CFC-12 were monitored to assess their impact on stratospheric ozone depletion and global warming from September 1995 to March 1999 at Kosan, Korea, located at eastern margin of the Asian Continent. The c... |
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Standards development of global warming gas species: methane, nitrous oxide, trichlorofluoromethane, and dichlorodifluoromethane.
Environ. Sci. Technol. 38(9) , 2685-92, (2004) Environmental scientists from federal agencies, such as the National Oceanic and Atmospheric Administration (NOAA), and academia have long suspected that increasing anthropogenic inputs of various trace gases into the atmosphere can cause changes in the earth... |
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In vitro approaches to evaluate placental drug transport by using differentiating JEG-3 human choriocarcinoma cells.
Basic Clin Pharmacol Toxicol. 108(2) , 138-45, (2011) Human choriocarcinoma cells have been used as models for studying transcellular drug transport through placental trophoblasts. However, these models allow the transport of low-molecular-weight drugs through intercellular gap junctions. This study aimed at inv... |
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Monochromatic soft-x-ray-induced reactions of CF2Cl2 adsorbed on Si(111)-7 × 7 studied by continuous-time photon-stimulated desorption spectroscopy near the F(1s) edge.
J. Phys. Condens. Matter 23(43) , 435011, (2011) Continuous-time core-level photon-stimulated desorption (PSD) spectroscopy was used to investigate the monochromatic soft x-ray photoreactions of CF(2)Cl(2) adsorbed on Si(111)-7 × 7 near the F(1s) edge (681-704 eV). Sequential F(+) PSD spectra were observed ... |
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Acute neurobehavioral effects in rats from exposure to HFC 134a or CFC 12.
Neurotoxicology 22(2) , 233-48, (2001) 1,1,1,2-Tetrafluoroethane (HFC 134a), a chlorine-free hydrofluoroalkane, is internationally replacing billions of pounds of dichlorodifluoromethane (CFC 12) for coolant, refrigerant and aerosol propellant applications. The ALC50 for HFC 134a in rats is 567,00... |
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Photoacoustic beam profiling of pulsed lasers.
Rev. Sci. Instrum. 80(11) , 113106, (2009) We introduce a beam profiler of pulsed lasers based on the photoacoustic technique. The method assumes that the initial pressure distribution inside the acoustic cell follows the laser intensity pattern if absorbed energy relaxes rapidly. This initial pressur... |
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A sensitive neutron dosimeter using superheated liquid.
Appl. Radiat. Isot. 53(4-5) , 759-63, (2000) The present work relates to a sensitive neutron dosimeter, a device for monitoring neutron dose in some accelerator and reactor sites. This device is capable of measuring a neutron dose as small as 0.1 microSv using superheated liquid as a sensitive liquid. T... |
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Evaluation of the temperature of different refrigerant sprays used as a pulpal test.
Aust. Endod. J. 34(3) , 86-8, (2008) The temperature of different refrigerant sprays (Endo-Ice, Endo-Frost, Coolermatic and Sprayon Contact and Tuner Cleaner) used as pulpal tests were evaluated in vitro. A thermocouple placed inside the pulp chamber of a maxillary central incisor was used to re... |
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High-temperature hydrodechlorination of ozone-depleting chlorodifluoromethane (HCFC-22) on supported Pd and Ni catalysts.
J. Environ. Sci. Health. A. Tox. Hazard. Subst. Environ. Eng. 46(9) , 989-96, (2011) The hydrodechlorination of chlorodifluoromethane (HCFC-22) was performed by a catalytic reaction and noncatalytic thermal decomposition at high temperatures of 400-800 °C. After 47 h of time-on-stream on a supported palladium (Pd) catalyst, the gas phase comp... |