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Halocarbon 14 - Tetrafluoromethane - ( CF4 )
Carbon Tetrafluoride is a colorless , relatively nontoxic , nonflammable gas with a slight ether-like odor . It is shipped as a compressed gas
| Specifications | ||
| Purity , % | 99.9 | 99.999 |
| Oxygen | ≤100 ppmv | ≤1.0 ppmv |
| Nitrogen | ≤400 ppmv | ≤4.0 ppmv |
| Carbon Dioxide | ≤80 ppmv | ≤0.5 ppmv |
| Carbon Monoxide | ≤50 ppmv | ≤0.5 ppmv |
| Methane | ≤50 ppmv | ≤0.5 ppmv |
| Other Halocarbons | ≤100 ppmv | ≤2.0 ppmv |
| Water | ≤10 ppmv | ≤2.0 ppmv |
| Sulfur Hexafluoride | ≤15 ppmv | ≤1.0 ppmv |
| Acidity as HF | ≤1.0ppmv | ≤0.1ppmv |
| Ship | ||
| DOT Shipping Name | Tetrafluoromethane, Compressed | |
| DOT Classification | 2.2 | |
| DOT Label | non-flammable Gas | |
| UN Number | UN1982 | |
| CAS No. | 75-73-0 | |
| CGA/DISS/JIS | 320/716/W22-14L | |
| Shipped as | Compressed Gas | |
| Technical Information | ||
| Cylinder State @ 21.1°C | Gas | |
| Flammable Limits In Air | Non-flammable | |
| Auto Ignition Temperature (°C ) | - | |
| Molecular Weight (g/mol) | 88.01 | |
| Specific gravity (air =1) | 3.04 | |
| Critical Temperature ( °C ) | -45.65 | |
| Critical Pressure ( psig ) | 528.459 | |
| Applications | ||
| One of the largest comsuption kinds of plasma etching gases in microelectronics industry , also widely used in surface cleaning of electronic device , manufacture of solar cell, laser technology , gas phase insulation , subzero refrigeration , leakage inspection agent and decontaminant of manufacture of printed circuit . | ||