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Halocarbon 23 - TRIFLUOROMETHANE

CHF3

DESCRIPTION: Halocarbon 23 (Trifluoromethane)(CHF3) is a colorless, nontoxic, nonflammable gas with a slightly ethereal odor. Contact with liquid may cause frostbite. Shipped as a liquefied gas under its own vapor pressure (635 psig @ 70°F).

APPLICATION: Halocarbon 23 is often used in combination with Halocarbon 14 and Halocarbon 116 to improve etch rate, selectivity and uniformity in etching.

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HALOCARBON 23
GRADE ELECTRONIC VLSI SIGMA 3
Critical Assay 99.9% 99.99% 99.996%
Nitrogen < 400 ppm < 50 ppm < 15 ppm
Oxygen < 100 ppm < 10 ppm < 5 ppm
Acidity as HF < 0.1 ppmw < 0.1 ppmw < 0.1 ppmw
Carbon Dioxide - < 10 ppm < 10 ppm
Water - < 5 ppm < 5 ppm
Valve Material Stainless Steel Stainless Steel Stainless Steel
Valve Design Diaphragm Diaphragm Diaphragm
CGA/DISS Connection 660, 320 660, 320/716 660, 320/716

 

Molecular Weight:
70.01
Specific Volume:
5.5 cf/lb @ NTP
Boiling Point:
-115.6°F @ 1 atm
CAS No.:
75-46-7
Hazards:
High Pressure and Suffocation
Safety Data: Simple Ashyxiant
Physical Properties Data:
  362.6 psia @ 32°F
649.7 psia @ 70 °F

 

HALOCARBON 23          
Cylinder Data/Size A B C LB  
Internal Volume (liters): 44 17 7 0.4  
Contents (lbs): 70 20 8 0.75  
Phase Break @ 70°F (lbs): 12.5 4.9 1.9 0.12  
Pressure @ 70°F (psig): 635 635 635 635  
DOT Label: Green, Nonflammable Gas UN Number: UN 1984  
DOT Class: 2.2 Cylinder: 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
Single-Stage, Brass - Model 2300 series
Shelf Life: 3 years

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