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Tetrafluoromethane Gas CF4

Carbon tetrafluoride is a colorless, odorless, non-flammable compressible gas, which is non-corrosive to metals and alloys. Krypton is shipped in seamless steel cylinders and aluminum alloy containers. The filling pressure is usually lower than 12.5MPa, and it is transported as compressed gas.
Availability:
Quantity:
  • 75-73-0

  • OEM/ODM

Technical Indicators

Components/Impurities

Carbon tetrafluoride/4.0N

carbon tetrafluoride/5.0N

carbon tetrafluoride/6.0N

carbon tetrafluoride CF4

99.99%

99.999%

99.9999%

Oxygen O2

﹤20ppm

﹤2ppm

﹤100ppb

nitrogen N2

﹤40ppm

﹤5ppm

-

Argon

-

-

﹤20ppb

Hydrogen H2

-

-

﹤100ppb

carbon monoxide CO

﹤10ppm

﹤1ppm

﹤50ppb

carbon dioxide CO2

﹤10ppm

﹤1ppm

﹤100ppb

Total Carbon (Methane) THC

﹤10ppm

﹤1ppm

﹤50ppb

waterH2O

﹤10ppm

﹤2ppm

﹤200ppb

The packing

Type of cylinder

Gas pressure

Gas volume

Net weight of gas

47L DOT cylinder

12MPa

8200L

30KG

10L cylinder

12MPa

1900L

7KG

Cylinder interface: YSF-1 or CGA510


Transport information

Transportation information

Chemical symbol

CF4

GAS No.

75-73-0

DOT Shipping Class

2.2

DOT tags

non-combustible gas

Canadian Shipping Classification

non-combustible gas

Substance Identification (S) No.

1982

UN No.

UN 1982

Main hazards

high pressure compression, asphyxiation

Toxicity (TLV)

asphyxia

Explosive Limits (Toxic)

non-combustible gas

Smell

none


Physical properties

Physical properties

Chemical name

CF4

Molar mass

88.005

Liquid Density (-127.94℃, 1atm)

1603kg/m3

Gas density (0℃, 1atm)

3.946kg/m3

Relative density (air=1, 0℃, 1atm)

3.05

Gas specific volume (21℃., 100kPa)

0.2747m3/kg

Boiling point at 1 atm

-128.0℃

Freezing point at 1 atm

-186.8℃

Critical temperature

-45.6℃

Critical pressure

3739kPa

Critical density

629kg/m3

Compression factor

Temperature(℃)/Pressure

100kPa 1000kPa 5000kPa 10000kPa

15℃

0.9981 0.9763 0.7832 0.6058

50℃

0.9988 0.9866 0.8717 0.7637

Heat of fusion (-186.8℃)

7.609kJ/kg

Heat of vaporization (-127.94℃, 101.325kPa)

135.65kJ/kg

Specific heat capacity (gas, 25℃. 101.325kPa)

Cp=696J/(kg • K)


Cv=602J/(kg • K)

Specific heat ratio (gas, 25℃. 101.325kPa)

Cp/Cv=1.157

Vapor pressure (21.1℃)

13.8MPa

Viscosity (gas, 101.325kPa, 0℃)

0.0161mPa • S

(liquid, -60℃)

0.170mPa • S

Surface tension (-80℃)

6.4mN/m

Thermal conductivity (gas, 101.325kPa, 0℃)

0.01503W/(m•K)

(liquid, -60℃)

0.07196W/(m•K)

Refractive index (-73℃)

1.151


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