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Silicon tetrahydride

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Synonyms & Trade Names
Monosilane, Silane, Silicane
CAS No.
7803-62-5
RTECS No.
VV1400000
DOT ID & Guide
2203 116
Formula
SiH₄
Conversion
1 ppm = 1.31 mg/m3
IDLH
N.D.
See: IDLH INDEX
Exposure Limits
NIOSH REL
TWA 5 ppm (7 mg/m3)
OSHA PEL
none See Appendix G
Measurement Methods
None available
See: NMAM or OSHA Methods
Physical Description
Colorless gas with a repulsive odor.
Molecular Weight
32.1
Boiling Point
-169°F
Freezing Point
-301°F
Solubility
Decomposes
Vapor Pressure
>1 atm
Ionization Potential
?
Flash Point
NA (Gas)
Upper Explosive Limit
?
Lower Explosive Limit
?
Relative Gas Density
1.11
Flammable Gas (may ignite SPONTANEOUSLY in air).
Incompatibilities & Reactivities
Halogens (bromine, chlorine, carbonyl chloride, antimony pentachloride, tin(IV) chloride), water
Exposure Routes
inhalation
Symptoms
irritation eyes, skin, mucous membrane; nausea, headache
Target Organs
Eyes, skin, respiratory system, central nervous system
Personal Protection/Sanitation
(See protection codes)
Skin:No recommendation
Eyes:No recommendation
Wash skin:No recommendation
Remove:No recommendation
Change:No recommendation
First Aid
(See procedures)


Breathing:Respiratory support
Respirator Recommendations

Not available.

Important additional information about respirator selection

See also
INTRODUCTION   ICSC CARD: 0564
Page last reviewed: October 30, 2019
Content source: National Institute for Occupational Safety and Health