Silicon tetrahydride
Names
[ CAS No. ]:
7803-62-5
[ Name ]:
Silicon tetrahydride
[Synonym ]:
MFCD00011228
Sila-Cycrimin
Silanol,cyclopentylphenyl[2-(1-piperidinyl)ethyl]
EINECS 232-263-4
Silicon tetrahydride
Chemical & Physical Properties
[ Density]:
1.114
[ Boiling Point ]:
-112ºC
[ Melting Point ]:
-185ºC
[ Molecular Formula ]:
H4Si
[ Molecular Weight ]:
32.11730
[ Exact Mass ]:
32.00820
[ Vapour density ]:
1.1 (vs air)
MSDS
Toxicological Information
CHEMICAL IDENTIFICATION
- RTECS NUMBER :
- VV1400000
- CHEMICAL NAME :
- Silane
- CAS REGISTRY NUMBER :
- 7803-62-5
- LAST UPDATED :
- 199712
- DATA ITEMS CITED :
- 18
- MOLECULAR FORMULA :
- H4-Si
- MOLECULAR WEIGHT :
- 32.13
- WISWESSER LINE NOTATION :
- SI H4
HEALTH HAZARD DATA
ACUTE TOXICITY DATA
- TYPE OF TEST :
- LC50 - Lethal concentration, 50 percent kill
- ROUTE OF EXPOSURE :
- Inhalation
- SPECIES OBSERVED :
- Rodent - rat
- DOSE/DURATION :
- 9600 ppm/4H
- TOXIC EFFECTS :
- Details of toxic effects not reported other than lethal dose value
- TYPE OF TEST :
- LCLo - Lowest published lethal concentration
- ROUTE OF EXPOSURE :
- Inhalation
- SPECIES OBSERVED :
- Rodent - mouse
- DOSE/DURATION :
- 9600 ppm/4H
- TOXIC EFFECTS :
- Details of toxic effects not reported other than lethal dose value
MUTATION DATA
- TYPE OF TEST :
- Mutation in microorganisms
- TEST SYSTEM :
- Bacteria - Salmonella typhimurium
- REFERENCE :
- MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 307,335,1994 *** REVIEWS *** ACGIH TLV-TWA 6.6 mg/m3 (5 ppm) DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: TLV/BEI,1997 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-AUSTRALIA:TWA 5 ppm (7 mg/m3) JAN 1993 OEL-BELGIUM:TWA 5 ppm (6.6 mg/m3) JAN 1993 OEL-DENMARK:TWA 0.5 ppm (0.7 mg/m3) JAN 1993 OEL-FINLAND:TWA 0.5 ppm (0.7 mg/m3);STEL 1.5 ppm (2.0 mg/m3) JAN 1993 OEL-FRANCE:TWA 5 ppm (7 mg/m3) JAN 1993 OEL-THE NETHERLANDS:TWA 0.5 ppm (0.7 mg/m3) JAN 1993 OEL-SWITZERLAND:TWA 0.5 ppm (0.7 mg/m3) JAN 1993 OEL-UNITED KINGDOM:TWA 0.5 ppm (0.7 mg/m3);STEL 1 ppm JAN 1993 OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGIH TLV *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH RECOMMENDED EXPOSURE LEVEL (REL) : NIOSH REL TO SILICON TETRAHYDRIDE-air:10H TWA 5 ppm REFERENCE : NIOSH* National Institute for Occupational Safety and Health, U.S. Dept. of Health, Education, and Welfare, Reports and Memoranda. Volume(issue)/page/year: DHHS #92-100,1992 NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 83770 No. of Facilities: 1732 (estimated) No. of Industries: 44 No. of Occupations: 41 No. of Employees: 33190 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 83770 No. of Facilities: 510 (estimated) No. of Industries: 11 No. of Occupations: 17 No. of Employees: 25354 (estimated) No. of Female Employees: 2999 (estimated)
Safety Information
[ Hazard Codes ]:
F+:Highlyflammable;Xn:Harmful;
[ Risk Phrases ]:
R12;R17;R20
[ Safety Phrases ]:
S9-S16-S33-S36/37/39
[ RIDADR ]:
UN 2203
[ WGK Germany ]:
1
[ RTECS ]:
VV1400000
[ Hazard Class ]:
2.1
[ HS Code ]:
3910000000
Customs
[ HS Code ]: 3910000000