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Boron trifluoride

Boron trifluoride is a colorless, toxic and corrosive gas with pungent odor and strong irritation at normal temperature and pressure. It does not burn and produces thick white smoke in humid air, so a large amount of smoke is generated when a large amount of leakage occurs, resulting in a thick smoke screen effect.
Availability:
Quantity:
  • 7637-07-2

  • OEM/ODM

Technical Indicators

Components/Impurities

Nitrogen trifluoride/4.0N

Boron trifluoride content BF3

99.99%

Oxygen O2

≤5.0ppm

nitrogen N2

≤10ppm

Silicon tetrafluoride SiF4

≤20ppm

Sulphur dioxide SO2

≤10ppm


The Packing

Type of cylinder

Gas pressure

Gas volume

High purity carbon dioxide

0.35L cylinder



150g

Cylinder interface: CGA350


Transport information

Transportation information

Chemical symbol

BF3

CAS No.

7637-07-2

Canadian Shipping Classification:

toxic gas

DOT tags

toxic gas

Danger level

2.3

Substance Identification (S) No.

1008

UN No.

UN 1008

Main hazards

poisonous

Toxicity (TLV)

2.8mg/m3


Physical properties

Physical properties

Chemical name

NF3

Molar mass

67.806

Gas density (20℃, 101.325kPa)

2.867kg/m3

Relative density (20℃, 101.325KPa, air=1)

2.38

Gas-liquid volume ratio (15℃, 100kPa)

560L/L

Critical temperature

-12.26℃

Critical pressure

4985kPa

Critical density

594kg/m3

Compression factor

Temperature (°C)/Pressure

100kPa 1000kPa 1000kPa

15℃

0.995 0.949 0.417

50℃

0.998 0.969 0.678

Heat of fusion (-128.7℃, 7kPa)

62.38kJ/kg

Heat of vaporization (-100.3℃, 101.325kPa)

278.84kJ/kg

Specific heat capacity (gas, 25℃, 101.33kPa)

Cp=749.44J/(kg•K) Cv=623.83J/(kg•K)

(Liquid, -123.2℃)

C=1519.81J/(kg • K)

Vapor pressure (145.85k)

8.89kPa

(218.75k)

1096kPa

(260.90k)

4975kPa

Viscosity (101.325kPa, 0℃)

0.0156mPa • S

Surface tension (-100℃)

17.2mN/m

Thermal conductivity (101.325kPa, 0℃)

0.01729W/(m•K)

Refractive index (0℃, 5462.2kPa)

1.0004134

Toxicity level

3

Flammability class

0

Explosiveness level

1


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