1,2-dibromotetrafluoroethane
Structural formula | |||||||||||||
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General | |||||||||||||
Surname | 1,2-dibromotetrafluoroethane | ||||||||||||
other names |
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Molecular formula | C 2 Br 2 F 4 | ||||||||||||
Brief description |
colorless, highly volatile liquid |
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properties | |||||||||||||
Molar mass | 259.82 g mol −1 | ||||||||||||
Physical state |
liquid |
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density |
2.15 g cm −3 |
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Melting point |
−110.32 ° C |
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boiling point |
47.35 ° C |
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Vapor pressure |
433 h Pa (25 ° C) |
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solubility |
practically insoluble in water |
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safety instructions | |||||||||||||
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Global warming potential |
1734 (based on 100 years) |
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Thermodynamic properties | |||||||||||||
ΔH f 0 |
−817.7 kJ / mol |
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As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . |
1,2-Dibromotetrafluoroethane is a chemical compound from the group of aliphatic, saturated halogenated hydrocarbons . It exists as a colorless, very volatile liquid.
use
1,2-Dibromotetrafluoroethane has been used as a fire fighting agent. It is classified as depleting the ozone layer ( ozone depletion potential of 6) and its use in Germany is prohibited according to the CFC-Halon Prohibition Ordinance .
On November 8, 2008, a serious accident occurred on the Russian submarine K-152 when the fire extinguishing system triggered as a result of a false alarm and released a freon , killing 20 people. Depending on the source, Freon-112 or dibromotetrafluoroethane (Freon 114B2) is specified as Freon.
Individual evidence
- ↑ a b c d e f g Entry on 1,2-dibromotetrafluoroethane in the GESTIS substance database of the IFA , accessed on February 5, 2018(JavaScript required) .
- ↑ G. Myhre, D. Shindell et al .: Climate Change 2013: The Physical Science Basis . Working Group I contribution to the IPCC Fifth Assessment Report. Ed .: Intergovernmental Panel on Climate Change . 2013, Chapter 8: Anthropogenic and Natural Radiative Forcing, pp. 24-39; Table 8.SM.16 ( PDF ).
- ↑ David R. Lide (Ed.): CRC Handbook of Chemistry and Physics . 90th edition. (Internet version: 2010), CRC Press / Taylor and Francis, Boca Raton, FL, Standard Thermodynamic Properties of Chemical Substances, pp. 5-20.
- ↑ Fire on Board the Russian Navy Akula II Nuclear Submarine kills Twenty Russian Sailors ( Memento from January 23, 2009 in the Internet Archive ).
- ↑ Interfax.ru: Это большое горе для всех .