Freonn.

/ˈfriːən/

Forms: Also freon.

Proprietary name for any of a group of partially or completely halogenated simple hydrocarbons containing fluorine and usually chlorine or bromine, used esp. as refrigerants and aerosol propellants.

ΘΚΠ

the world > matter > chemistry > organic chemistry > hydrocarbons > [noun] > halogenated hydrocarbons > specific

tetrachlorethane1871

pentachloroethane1872

trichloroethylene1889

Freon1932

tetrafluoroethylene1933

fluorocarbon1937

perfluorocarbon1947

heptachlor1949

tetrachlorodibenzodioxin1959

TCDD1971

CFC1976

1932 Industr. & Engin. Chem. 24 620 Freon..was developed in a deliberate attempt to produce, by chemical arrangement, a refrigerant..which still has properties especially favorable to economic operation.

1941 Archit. Rev. 90 52 Cooling is provided by refrigerating compressors, using Freon gas, a safe and harmless refrigerant.

1945 Electronic Engin. 17 762 Insulation is provided by freon gas.

1950 J. D. Park in J. H. Simons Fluorine Chem. I. xv. 527 The structures of most of the ‘Freons’ having from one to five carbon atoms.

1959 Trade Marks Jrnl. 25 Feb. 220/2 Freon, fluorinated hydrocarbons being chemical substances for use as propellents for aerosols. E. J. Du Pont de Nemours and Company.

1966 McGraw-Hill Encycl. Sci. & Technol. (rev. ed.) V. 501/1 The most popular freons are Freon-11 and Freon-12.

1967 Jane's Surface Skimmer Syst. 1967–8 106/1 The pilothouse..and berthing spaces are air-conditioned during the cooling season by a 13 ton capacity freon type compressor system.

1968 New Scientist 25 July 197/1 Freons, the halogenated varieties of methane and ethane..are pretty inert chemically.

This entry has not yet been fully updated (first published 1972; most recently modified version published online December 2020).

单词	freon
释义	Freonn. /ˈfriːən/ Forms: Also freon. Proprietary name for any of a group of partially or completely halogenated simple hydrocarbons containing fluorine and usually chlorine or bromine, used esp. as refrigerants and aerosol propellants. ΘΚΠ the world > matter > chemistry > organic chemistry > hydrocarbons > [noun] > halogenated hydrocarbons > specific tetrachlorethane1871 pentachloroethane1872 trichloroethylene1889 Freon1932 tetrafluoroethylene1933 fluorocarbon1937 perfluorocarbon1947 heptachlor1949 tetrachlorodibenzodioxin1959 TCDD1971 CFC1976 1932 Industr. & Engin. Chem. 24 620 Freon..was developed in a deliberate attempt to produce, by chemical arrangement, a refrigerant..which still has properties especially favorable to economic operation. 1941 Archit. Rev. 90 52 Cooling is provided by refrigerating compressors, using Freon gas, a safe and harmless refrigerant. 1945 Electronic Engin. 17 762 Insulation is provided by freon gas. 1950 J. D. Park in J. H. Simons Fluorine Chem. I. xv. 527 The structures of most of the ‘Freons’ having from one to five carbon atoms. 1959 Trade Marks Jrnl. 25 Feb. 220/2 Freon, fluorinated hydrocarbons being chemical substances for use as propellents for aerosols. E. J. Du Pont de Nemours and Company. 1966 McGraw-Hill Encycl. Sci. & Technol. (rev. ed.) V. 501/1 The most popular freons are Freon-11 and Freon-12. 1967 Jane's Surface Skimmer Syst. 1967–8 106/1 The pilothouse..and berthing spaces are air-conditioned during the cooling season by a 13 ton capacity freon type compressor system. 1968 New Scientist 25 July 197/1 Freons, the halogenated varieties of methane and ethane..are pretty inert chemically. This entry has not yet been fully updated (first published 1972; most recently modified version published online December 2020). < n.1932
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