chemistry

Freon with formula, types, uses and characteristics

freon gasWhat is Freon Gas?(Dichlorodifluoromethane)

Freon gas is the trade name of a certain class of organic chemicals called chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (Chydrochlorofluorocarbon – HCF), and some similar compounds. Freon contains mostly hydrogen, bromine and chlorine, as well as fluorine and carbon.Freon gas, also known as CFC, is a non-flammable chemical compound, used in air conditioners in cars, buildings and refrigerators for refrigeration.This gas was invented in the early 20th century as an alternative to toxic gases that were used for various refrigeration processes, and its use greatly expanded In addition, some of its compounds have been banned and manufactured in accordance with international agreements.

Formula of (Dichlorodifluoromethane)

Formula: CCl2F2
IUPAC ID: Dichlorodifluoromethane
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 manufactured in the 1890s, but they were extremely dangerous and flammable, and in the 1920s another GM team was formed to find a safer, more stable and nontoxic alternative, and Frigidaire, a branch In 1930, GM and DuPont assembled and formed Kinetic Chemicals to produce freon, not only damaging the ozone layer, but freon manufacturing also releases another product into the atmosphere , this gas, known With HFC-23, it is also harmful and contributes to global warming .

Characteristics

Freon is a non-flammable gas that is colorless, and although Freon is often odorless, some of its types have an ether-like odor. Freon also maintains its gaseous state at room temperature, can be liquefied by compression or cooling, is four times heavier than air, and freon is discharged directly to the ground in the event of any leakage in the container.Freon gas, also known as CFC, is a non-flammable chemical compound, used in air conditioners in cars, buildings and refrigerators for refrigeration.This gas was invented in the early 20th century as an alternative to toxic gases that were used for various refrigeration processes, and its use greatly expanded In addition, some of its compounds have been banned and manufactured in accordance with international agreements.

Types of Freon Compounds (CFC)

There are many types of freon that have different uses:

1. Freon R134A: Tetrafluoroethane, especially used in cars.

Freon R22: Chlorodiofluoromethane (Chlorodiofluoromethane), used in large capacity air conditioners, in residential and commercial air conditioners, as well as for some means of transport, food services, ice machines, food storage Freon

R410A: An alternative to the previous type (Freon R22), because Freon R22 has been discontinued worldwide because it is a substance that depletes the ozone layer.

R11: Trichloro mono-fluoromethane (in English) Trichloromonofluoromethane), used in air conditioners and refrigerants, is one of the most dangerous types of freon on the ozone layer;

Uses

  • .The use of this gas has proved to be harmful to the ozone layer, leading to significant damage and depletion.
  • Manufacturing refrigeration and air conditioning devices of all kinds.
  • Freeze food.
  • Sterilization of medical materials.
  • Making moisture and heat insulators

Freon hazards to the ecosystem

It has been fully established that chemicals containing chlorine components contribute to significant destruction of the ozone layer and, consequently, to their depletion. Accordingly, the Montreal Convention provides for the cessation of the use or manufacture of this gas or any of its compounds. The implementation of the Montreal Protocol is therefore considered successful. In reducing the many concentrations of gases that deplete this layer in the atmosphere, such as chlorofluorocarbons (CFCs). As a result of the policies and laws of the Montreal Convention, all levels of stratospheric chlorine have been reduced, and the ozone layer is expected to return to its pre-1980 levels. It has recently been observed that the concentration of dichloromethane in the atmosphere depletes the ozone layer and is increasing significantly, a substance not mentioned in the Montreal Convention, and if this increase continues – albeit a slight – it will cause Delayed recovery of the ozone layer.

The photochemical separation of freons as well as all related CFCs is one of the main causes of the degradation of the ozone layer in the atmosphere. Can absorb very harmful ultraviolet rays, because they are a catalyst for skin cancer.

The air spray containers are banned in the USA because they contain freon. Many developed countries have prevented the production of almost all types of freons to accumulate evidence that ozone is depleting in the polar regions.

Alternatives to harmful freon gas on the ecosystem

Some cities under the Montreal Convention rely on environmentally friendly refrigerators and refrigerators, which contain Freon R123, which is an alternative to Freon R11 air conditioners.

Dangers of CCI2F2 on the human body

Some studies have been carried out to determine the impact of exposure to CFCs on human health, such as those conducted at the heart clinic in the Suez Canal Authority Hospital in Egypt, where it collected two categories of workers in refrigeration plants, half of them exposed to CFCs and the other half is not exposed to these compounds In each group of 23 people, the result of the study concluded that exposure to CFCs causes cardiac problems in the form of irregular beats. Although it can raise cholesterol and raise beta-2 microglobulin in urine, its role in high blood pressure and coronary heart disease is not yet clear.

The photochemical separation of freons as well as all related CFCs is one of the main causes of the degradation of the ozone layer in the atmosphere. Can absorb very harmful ultraviolet rays, because they are a catalyst for skin cancer.

The contact with freon (chlorofluorocarbons) of the skin leads to minor and superficial burns, but these burns develop spontaneously after several days of completely thick burns if their treatment is neglected.Therefore they require surgical treatment by removing the affected skin and transplanting the skin of others.

The negative effects of freon are based on its risks to the atmosphere, especially the ozone layer of its rich chlorine. Instead of health damage to the skin, it can cause burns.

When inhaled freon in large quantities this in turn negatively affects the lung significantly and the heart and nerves and threaten the kidneys and liver, and can even lead to death.

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what is freon formula,types and stucture
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what is freon formula,types and stucture
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Freon with formula, types, uses, and characteristics. The use of this gas has proved to be harmful to the ozone layer.and also used to freeze food.
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dania
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