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Phosphine Gas PH3

Phosphine is a colorless, poisonous gas with an unpleasant garlic and stinky fish smell at normal temperature and pressure. It can burn in the air. If it contains a small amount of P2H4, it can also spontaneously ignite in the air at room temperature, and it is prone to explosion.
Availability:
Quantity:
  • 7803-52-2

  • OEM/ODM

Technical Indicators

Components/Impurities

Phosphine/4.0N

Phosphine/5.0N

Phosphine/6.0N

Phosphine content PH3

99.99%

99.999%

99.9999%

Hydrogen H2

≤20ppm

-

-

Argon

-

≤1.0ppm

﹤100ppb

Oxygen O2

≤3.0ppm

≤1.0ppm

﹤100ppb

nitrogen N2

≤10ppm

≤3.0ppm

﹤200ppb

carbon monoxide CO

-

≤0.5ppm

﹤100ppb

carbon dioxide CO2

≤10ppm

≤1.0ppm

﹤100ppb

Total Carbon (Methane) THC

≤3.0ppm

≤1.0ppm

﹤100ppb

Arsine AsH3

-

≤1.0ppm

﹤100ppb

water H2O

≤2.0ppm

≤1.0ppm

﹤100ppb


The Packing

Type of cylinder

Gas pressure

Gas volume

High purity carbon dioxide

48.8L DOT cylinder

3.5MPa

9m3

13.6kg

Cylinder interface: CGA330, 316L stainless steel material CGA350, DISS632


Transport information

Transportation information

Chemical symbol

PH3

CAS No.

7803-52-2

DOT Shipping Class

Toxic gas, flammable

DOT tags

Toxic gas, flammable

Canadian Shipping Classification Levels

2.3

Substance Identification (S) No.

2199

UN No.

UN 2199

Main hazards

toxic, corrosive

Toxicity (TLV)

0.42mg/m3


Physical properties

Physical properties

Chemical name

PH3

Molecular weight

34

Liquid density (-87.88℃,101.325kPa)

740kg/m3

Relative density (25℃, 101.325KPa, air=1)

1.184

Gas-liquid volume ratio (15℃, 100kPa)

510L/L

Critical temperature

51.6℃

Critical pressure

9010kPa

Critical density

301kg/m3

Compression factor

Temperature(℃)/Pressure

100kPa 500kPa 1000kPa 2000kPa

10℃

0.993 0.963 0.925 0.837

50℃

0.995 0.975 0.948 0.892

Heat of fusion (-133.8℃, 3.6kPa)

33.29kJ/kg

Heat of vaporization (-87.77℃, 101.325kPa)

429.57kJ/kg

Specific heat capacity (25℃, 101.325kPa)

Cp=1092.01J/(kg•K)

Vapor pressure (-20℃)

1196kPa

(0℃)

2209kPa

(20℃)

3506kPa

Viscosity (101.325kPa, 0℃)

0.0106mPa • S

(Liquid, -750℃)

0.180mPa • S

Surface tension (-125℃)

25.5mN/m

Thermal conductivity (101.325kPa, 0℃)

0.01604W/(m•K)

Refractive index (gas, 25℃, 101.325kPa)

1.0008

Toxicity level

4

Flammability class

4

Explosiveness level

4


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