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Halocarbon 14 - TETRAFLUOROMETHANE

CF4

DESCRIPTION: Halocarbon 14 (Tetrafluoromethane) (CF4) is a colorless, nontoxic, nonflammable, noncorrosive gas with a slight ether-like odor. Halocarbon 14 is normally compressed and shipped at high pressure.

APPLICATION: Halocarbon 14 is combined with oxygen to etch polysilicon, silicon dioxide and silicon nitride, as well as certain metals and metal silicides. Halocarbon 14 can be combined with Halocarbon 116 or used alone to clean wafers and chambers.

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HALOCARBON 14
GRADE ELECTRONIC VLSI
Critical Assay 99.99% 99.997%
Meets SEMI Specification SEMI C3.21-90 SEMI C3.12-90
Nitrogen < 200 ppm < 16 ppm
Oxygen < 50 ppm < 4 ppm
Carbon Dioxide < 5 ppm < 1 ppm
Water < 1 ppm < 1 ppm
Carbon Monoxide < 5 ppm < 1 ppm
Acidity as HF < 0.1 ppmw < 0.1 ppmw
Sulfur Hexafluoride < 1 ppm < 1 ppm
Valve Material Stainless Steel 316L SS
Valve Design Packed Packed
CGA/DISS Connection 580/320 580 or 320/716

 

Molecular Weight:
88.01
Specific Volume:
4.39 cf/lb @ NTP
Boiling Point:
-198.4°F @ 1 atm
CAS No.:
75-73-0
Hazards:
High Pressure and Suffocation
Safety Data: Simple Ashyxiant
Physical Properties Data:
  Critical Termperature: - 50.2 °F
Critical Pressure: 543.2 psia

 

HALOCARBON 14          
Cylinder Data/Size A AL B BL C
Internal Volume (liters): 44 30 17 16 7
Contents (lbs): 70 47 24 24 10
Pressure @ 70°F (psig): 2,000 2,000 2,000 2,000 2,000
DOT Label: Green, Nonflammable Gas UN Number: UN 1982  
DOT Class: 2.2 Cylinder: Aluminum or steel alloy  
Recommended OmniGas® Panels: Purgeable panel for gases - Model No. 58PA200PNB
Recommended Regulators: Single-Stage, Stainless Steel - Model 213 series
Single-Stage, Tied Diaphragm, Stainless Steel - Model 217 series
Two-Stage, Brass - Model 218 series
Shelf Life: 3 years

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