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2021 Good Quality Sulphur Hexafluoride - Carbon Tetrafluoride – YANXA
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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Using a complete scientific high quality management program, superior high quality and superior faith, we acquire great reputation and occupied this industry for 2021 Good Quality Sulphur Hexafluoride - Carbon Tetrafluoride – YANXA , The product will supply to all over the world, such as: Saudi Arabia, Moscow, Bhutan, Our company regards reasonable prices, high quality,efficient production time and good after-sales service as our tenet. We hope to cooperate with more customers for mutual development and benefits in future. Welcome to contact us.
By Erin from Vietnam - 2017.12.19 11:10
This manufacturers not only respected our choice and requirements, but also gave us a lot of good suggestions, ultimately， we successfully completed the procurement tasks.
By Natividad from Amsterdam - 2017.10.27 12:12
