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China Cheap price R 14 - Carbon Tetrafluoride – YANXA
China Cheap price R 14 - 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 |
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Notes
1) all the technical data indicated above are for your reference.
2) alternative specification is welcome for further discussion.
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While in the past few years, our organization absorbed and digested innovative technologies both equally at home and abroad. Meanwhile, our organization staffs a group of experts devoted for the advancement of China Cheap price R 14 - Carbon Tetrafluoride – YANXA , The product will supply to all over the world, such as: Canada, Israel, San Diego, We have a strict and complete quality control system, which ensures that each product can meet quality requirements of customers. Besides, all of our products have been strictly inspected before shipment.
By Margaret from Durban - 2018.06.18 17:25
The factory technical staff not only have high level of technology, their English level is also very good, this is a great help to technology communication.
By Grace from Slovakia - 2018.12.11 11:26
