What is SF6 gas? How to apply SF6 gas in life?

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What is SF6 gas? How to apply SF6 gas in life?

Contents

1 What is SF6? Concept of SF6
2 History of SF6 gas
3 Physical properties of SF6
4 Chemical properties of SF6
5 How to apply SF6 gas in practice?
- 5.1 Circuit breaker
6 SF6 is also used in
7 Is SF6 gas toxic to humans?
8 How to use SF6 gas
9 How to Store SF6

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SF6 gas, also known as Sulfur Hexafluoride, is a chemical associated with human life with many uses that they bring in many different fields such as environment, transportation, health, etc. about SF6 yet? What properties, applications and dangers inherent in SF6? Please refer to the article that abbasia.asia introduces below.

What is SF6? Concept of SF6

SF6 is the chemical symbol for Sulfur Hexafluoride, which is inorganic, colorless, odorless, non-flammable, extremely strong greenhouse gas and good electrical insulator. SF6 has an octahedral geometry (six fluorine atoms attached to a central sulfur atom). Is a type of ascending molecule. Representing a nonpolar gas, SF6 is insoluble in water but soluble in nonpolar organic solvents.

Sulfur Hexafluoride has a density of 6.12 g/L at sea level, much higher than the density of air (1,225 g/L).

History of SF6 gas

SF6 gas has been used by humans since 1990 due to its many good applications. SF6 gas is also gradually introduced into the industries, especially the power cutting industry, applied to electrification substations because of its very high dielectric strength (higher than air) and the ability to extinguish arcs very well. good.

In the 1980s, SF6 gradually became more accessible to the public, and the applications SF6 brought to people were gradually used more and more. Currently, high voltage equipment uses SF6 gas and low voltage also tends to use this gas.

Reference: Buying used SF6 gas

Physical properties of SF6

The dielectric strength of SF6 is 2 times that of air
The ability to transfer heat and dissipate heat is very good, used to reduce the temperature of the device when operating.
SF6 for effective arc extinguishing, which reduces wear on equipment contacts, significantly reducing maintenance times
Non-toxic to humans, non-flammable, non-corrosive

Chemical properties of SF6

Under normal conditions, SF6 will be chemically inert because they are incapable of reacting with any substances
Chemically stable, non-inert, good chemical reactivity, difficult to decompose
The mass of SF6 is 5 times heavier than air, which is very high. And also a substance that causes the greenhouse effect.
According to studies, 1kg of SF6 can be equivalent to 22 tons of CO2 .

How to apply SF6 gas in practice?

Circuit breaker

Helps reduce the size, reduce the weight of the device
Increase the quality of operation
Easy to install and transport
Reduce maintenance times

SF6 is also used in

High voltage circuit breakers/transmissions, switchgear and switchgear
Gas insulation for substations, power transmission lines
Use in Radar equipment, Particle accelerators and generators

In medicine, SF6 also has special uses for ophthalmology, treating some diseases related to the human eye.

And thousands of other apps.

Is SF6 gas toxic to humans?

The answer is no. SF6 gas is completely harmless to humans, animals and the environment. However, SF6 can be a greenhouse gas if too much SF6 is exposed to the atmosphere, but SF6 has a very low density (000 ‘000 ‘000 ‘003) so they contribute to the effect. greenhouse only 0.1% total effect.

How to use SF6 gas

Take gas out or use gas in a well-ventilated place, absolutely not in places with fire, explosive or flammable objects.
The gas canister must be guaranteed to be leak-free