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2021 Good Quality Sulphur Hexafluoride - Carbon Tetrafluoride – YANXA

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Our business puts emphasis over the administration, the introduction of talented staff, plus the construction of team building, attempting hard to boost the standard and liability consciousness of personnel customers. Our corporation successfully attained IS9001 Certification and European CE Certification of Gas Phase Ammonium Nitrate, Atomized Aluminum Powder, Anhydrous Hydrazine Production, Our hugely specialized process eliminates the component failure and offers our consumers unvarying high quality, allowing us to control cost, plan capacity and maintain consistent on time delivery.
2021 Good Quality Sulphur Hexafluoride - Carbon Tetrafluoride – YANXA Detail:

Tetrafluoromethane, also known as carbon tetrafluoride, is the simplest fluorocarbon (CF4). It has a very high bonding strength due to the nature of the carbon–fluorine bond. It can also be classified as a haloalkane or halomethane. Because of the multiple carbon–fluorine bonds, and the highest electronegativity of fluorine, the carbon in tetrafluoromethane has a significant positive partial charge which strengthens and shortens the four carbon–fluorine bonds by providing additional ionic character. Tetrafluoromethane is a potent greenhouse gas.

Tetrafluoromethane is sometimes used as a low temperature refrigerant. It is used in electronics microfabrication alone or in combination with oxygen as a plasma etchant for silicon, silicon dioxide, and silicon nitride.

Chemical formula CF4 Molecular weight 88
CAS No. 75-73-0 EINECS No. 200-896-5
Melting point -184℃ Boling point -128.1℃
solubility Insoluble in water Density 1.96g/cm³(-184℃)
Appearance A colorless, odorless, nonflammable, compressible gas Application used in plasma etching process for various integrated circuits, and used also as laser gas, refrigerant etc.
DOT ID Number UN1982 DOT/IMO SHIPPING NAME: Tetrafluoromethane, Compressed or Refrigerant Gas R14
    DOT Hazard Class Class 2.2
Item

Value, grade I

Value, grade II

Unit

Purity

≥99.999

≥99.9997

%

O2 

≤1.0

≤0.5

ppmv

N2 

≤4.0

≤1.0

ppmv

CO

≤0.1

≤0.1

ppmv

CO2 

≤1.0

≤0.5

ppmv

SF6 

≤0.8

≤0.2

ppmv

Other fluorocarbons

≤1.0

≤0.5

ppmv

H2O

≤1.0

≤0.5

ppmv

H2

≤1.0

——

ppmv

Acidity

≤0.1

≤0.1

ppmv

*other fluorocarbons refer to C2F6、C3F8

Notes
1) all the technical data indicated above are for your reference.
2) alternative specification is welcome for further discussion.


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