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Silane Electronic Gases SiH4

Silane is a colorless, toxic and very reactive compressed gas at normal temperature and pressure. It can spontaneously ignite at room temperature, and it will explode explosively in air or halogen gas. Silane concentration does not burn when it is less than 1%, spontaneously ignites when it is greater than 3%, and may burn when it is 1% to 3%.
Availability:
Quantity:
  • 7803-62-5

  • OEM/ODM

Technical Indicators

Components/Impurities

Silane/4.0N

Silane/5.0N

Silane/6.0N

Silane content SiH4

99.99%

99.999%

99.9999%

Hydrogen H2

≤50ppm

≤30ppm

≤20ppm

Helium

-

≤10ppm

≤10ppm

Oxygen (Argon) O2 (Ar)

≤1.0ppm

≤0.4ppm

≤0.1ppm

nitrogen N2

≤1.0ppm

≤0.2ppm

≤0.1ppm

carbon monoxide CO + carbon dioxide CO2

≤0.4ppm

≤0.4ppm

≤0.1ppm

Chloride THCl

≤15ppm

≤0.2ppm

≤0.1ppm

Total Carbon (Methane) THC

≤0.2ppm

≤0.2ppm

≤0.1ppm

Silyl ether

≤1.0ppm

≤0.2ppm

≤0.1ppm

Disilane Si2H6

≤1.0ppm

≤0.2ppm

≤0.1ppm

Water H2O

≤1.0ppm

≤0.2ppm

≤0.1ppm


The Packing

Type of cylinder

Gas pressure

Gas volume

High purity carbon dioxide

43.3L DOT cylinder

12MPa

7 or 10.5m3

10 or 15kg

440L Y tank

12MPa

88m3

125kg

Cylinder interface: CGA350 or JISS632



Transport information

Transportation information

Chemical symbol

SiH4

CAS No.

7803-62-5

DOT Shipping Class

Flammable gas

DOT tags

Flammable gas

Substance Identification (S) No.

2203

UN No.

UN 2203

Main hazards

Flammable, toxic

Toxicity (TLV)

5ppm

Explosive Limits (Toxic)

0.8%~98%

Smell

none


Physical properties

Physical properties

Chemical name

SiH4

Molecular weight

32.118

Melting point (101.325kPa)

-185.0℃

Boiling point (101.325kPa)

-111.5℃

Liquid Density (-185℃)

711kg/m3

Gas density (0℃, 100kPa)

1.42kg/m3

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

1.114

Specific volume (21.1℃, 101.325kPa)

0.7518m/kg

Gas-liquid volume ratio (15℃, 100kPa)

412L/L

Critical temperature

-3.4℃

Critical pressure

4843kPa

Critical density

242kg/m3

Compression factor


Temperature(℃)/Pressure

500kPa 1000kPa 3000kPa 4000kPa

10℃

0.963 0.923 0.85 0.697

50℃

0.964 0.928 0.858 0.713

Heat of fusion (-186.4℃, ﹤0.1kPa)

24.62kJ/kg

Heat of vaporization (-111.4℃, 101.325kPa)

342.89kJ/kg

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

Cp=1333.96J/(kg • K)

Vapor pressure (-168℃)

1.33kPa

(-60℃)

1040kPa

(-10℃)

4150kPa

Viscosity (101.325kPa, 0℃)

0.0108mPa • S

Surface tension (-111.4℃, 1101.325kPa)

15.11mN/m

Thermal conductivity (101.325kPa, 0℃)

0.01918W/(m•K)

Explosion limit

0.8%~98%

Fire Hazard

Big

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