Freon gas is a trading name for a specific class of organic chemicals called chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFs) and certain similar compounds. Freon mainly contains hydrogen, bromine and chlorine and fluorine and carbon. Freon gas, also known as CFC, is a non-combustible compound used in the air conditioning of cars, buildings, and refrigerators to cool. At the start of the 20th century, its use was greatly expanded to replace toxic gases used in various refrigeration processes. In addition, some of its compounds have been banned and produced under international agreements.
(Dichlorodifluoromethane) Formula
Formula: CCl2F2
IUPAC ID: Dichlorodifluoromethane chemistry analysis
Boiling point: -29.8 ° C
Molar mass: 120.91 g / mol
Melting point: -157.7 ° C
Density: 1.49 g / cm³
Soluble in: water
History of Freon
CFCs were first produced in the 1890s, but they were extremely dangerous and flammable. In the 1920s, another GM team was formed to find safer, more stable and non-toxic alternatives. In 1930, the Flakedale branch was established, and General Motors and DuPont were trained and trained. Kinetic Chemicals produces freon, which not only destroys the ozone layer, but also produces another product in the atmosphere. This gas, called HFC-23, is also harmful and contributes to global warming.
CHARACTERISTICS
Freon is a colorless, non-flammable gas. Although it is generally odorless, some of these types have an ethereal odor. Freon can also maintain its gaseous state at room temperature, can be liquefied by compression or cooling, is four times heavier than air and can be released directly to the ground in the event of a leak in the container. Freon gas, also known as CFC, is a non-flammable chemical compound used in the air conditioning of cars, buildings and refrigerators for cooling. Gas was invented at the beginning of the 20th century and replaces toxic gases used in various refrigeration processes. Its use has grown considerably. In addition, some of its compounds have been banned and produced under international agreements.
Types of Freon Compounds (CFCs)
Freon has many different uses:
1. Freon R134A: tetrafluoroethane, particularly used in automobiles.
Freon R22: chlorodifluoromethane (chlorodifluoromethane), used in large capacity air conditioners, civil and commercial air conditioners and certain transport vehicles, food services, ice makers, food storage
R410A: replaces the previous model (Freon R22) because Freon R22 has been abandoned worldwide because it is an ozone-depleting substance.
R11: Trichlorofluoromethane (English), used in air conditioners and refrigerants, is one of the most dangerous types of freon in the ozone layer;
Use
It turns out that the use of this gas is harmful for the ozone layer, causing serious damage and consumption.
Manufacture of various refrigeration and air conditioning equipment.
Frozen food.
Sterilization of medical equipment.
Make humidity and insulation
Ecosystem damage caused by freon
It is absolutely certain that chemicals containing chlorine can seriously damage the ozone layer and cause its consumption. Consequently, the Montreal Convention provides for the cessation of the use or manufacture of this gas or one of its compounds. The implementation of the Montreal Protocol is therefore considered to be successful. By reducing the consumption of many concentrations of this layer of gases in the atmosphere, such as chlorofluorocarbons (CFCs). Due to the policies and legal reasons of the Montreal Convention, all levels of stratospheric chlorine have been reduced and the ozone layer is expected to return to pre-1980 levels. It has recently been observed that the concentration of methylene chloride in the atmosphere depletes the ozone layer and increases sharply. It is a substance not mentioned in the Montreal Convention. If this growth continues (although it is weak), it will delay the recovery of the ozone layer.
what is freon 