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The chloro fluoro derivatives of methane and ethane are called freons. Some of the derivatives are: CHF2Cl (monochlorodifluoromethane), CF2Cl2 (dichlorodifluoro-methane), HCF2CHCl2 (1,1-dichloro-2,2-difluoroethane). These derivatives are non-inflammable, colourless, non-toxic, low boiling liquids. These are stable upto 550°C. The most important and useful derivative is CF2Cl2 which is commonly known as freon and freon-12.
Freon or freon-12 (CF2Cl2) is prepared by treating carbon tetrachloride with antimony trifluoride in the presence of antimony pentachloride as a catalyst.
(SbCl5).
3CCl4 + 2SbF3 -----→ 3CCl2F2 + 2SbCl3
Catalyst
Or it can be obtained by reacting carbon tetrachloride with hydrofluoric acid in presence of antimony pentachloride (SbCl5).
CCl4 + 2HF -----→ CCl2F2 + 2HCl
Under ordinary conditions freon is a gas. Its boiling point is -29.8°C. It can easily be liquified. It is chemically inert. It is used in air-conditioning and in domestic refrigerators for cooling purposes (As refrigerant). It causes depletion of ozone layer.
Freon is synthesized by reacting hydrogen fluoride with chloroform or dichloromethane in the presence of a catalyst such as antimony trichloride. The synthesis typically involves multiple steps and specific reaction conditions to produce the desired freon compound.
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How is dimedone synthesized?
Dimedone is synthesized from mesityl oxide and diethyl malonate .
What organelle are proteins synthesized with?
It is the ribosome. Proteins are synthesized on that
What are the components synthesized in the nucleus?
Components are synthesized in nucleolus.They are combined in cytoplasm.
The membrane receptors are proteins that would be synthesized on ribosomes where?
The membrane receptors are proteins that are synthesized on ribosomes located in the cytoplasm of the cell. Once synthesized, these proteins are then transported to the cell membrane where they become embedded and function as receptors for specific signaling molecules.
In what organelle are proteins are synthesized?
the ribosome
What organelle is insulin synthesized?
It is synthesized in the cytoplasm by the process of translation.
How is synthesized?
Dimedone is synthesized from mesityl oxide and diethyl malonate .
Are gamma globulin's are synthesized inside bone marrow?
They are the only plasma proteins that are not synthesized in liver, but are synthesized in lymph nodes .
How is dimedone synthesized?
Dimedone is synthesized from mesityl oxide and diethyl malonate .
Can bile be synthesized by cholesterol?
Yes, bile acids are synthesized in the liver.
What is another word for synthesized?
Another word for synthesized is amalgamated or integrated.
Is r22 freon compatible with r 134a freon?
Is r-22 Freon compatible with r-134a freon?
When is vitamin D synthesized?
Vitamin D is synthesized when modified Cholesterol molecules. . .
What organelle are proteins synthesized with?
It is the ribosome. Proteins are synthesized on that
Where do you add freon on a 1997 mountaineer?
Contains no Freon. Freon was banned beginning in 1996.
What is the symbol for freon?
Freon is DuPont's trade name. There are 2 types of Freon, Freon-11 is trichlorofluoromethane, while Freon-12 is dichlorodifluoromethane. All types of Freon have been banned from production since 1996. Refrigerants are manmade compounds not Elements
Can r404-a freon be substitted for r22 freon?
NO
