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Registry of Toxic Effects of Chemical Substances (RTECS)

Silicon carbide

RTECS #

VW0450000

CAS #

409-21-2; 12504-67-5; 66039-27-8

Updated

September 2013

Molecular Weight

40.10

Molecular Formula

CSi

Synonyms

Annanox CK
Betarundum
Betarundum ST-S
Betarundum UF
Betarundum ultrafine
Carbofrax M
Carbolon
Carbon silicide
Carborundeum
Carborundum
Crystar
Crystolon 37
Crystolon 39
Densic C 500
DU-A 1
DU-A 2
DU-A 3
DU-A 3C
DU-A 4
GC 10000
Green densic
Green densic GC 800
Hitaceram SC 101
KZ 3M
KZ 5M
KZ 7M
SC 201
SC 9
SC 9 (Carbide)
SCW 1
SD-GP 6000
SD-GP 8000
Silicon carbide (ACGIH:OSHA)
Silicon monocarbide
Silundum
Tokawhisker
UA 1
UA 2
UA 3
UA 4
UF 15
YE 5626

Tumorigenic Data and References

Route/OrganismDoseEffectReference
implant/rat lowest published toxic dose: 200 mg/kgTumorigenic: Neoplastic by RTECS criteria

Tumorigenic: Tumors at site of application
JJIND8 67,965,1981
intraperitoneal/rat lowest published toxic dose: 300 mg/kg/26W- intermittentTumorigenic: Equivocal tumorigenic agent by RTECS criteria

Gastrointestinal: Tumors
EKSODD 11(2),13,1989

Acute Toxicity Data and References

Route/OrganismDoseEffectReference
intratracheal/rat lowest published toxic dose: 250 mg/kgLung, Thorax, or Respiration: Other changes

Lung, Thorax, or Respiration: Fibrosis (interstitial)
VCVN1* -,357,1988
intratracheal/rat lowest published toxic dose: 8 mg/kgLung, Thorax, or Respiration: Other changes

Biochemical: Metabolism (intermediary): Other proteins
TOLED5 145,273,2003

Other Multiple Dose Data and References

Route/OrganismDoseEffectReference
inhalation/rat lowest published toxic concentration: 60 mg/m3/6H/13W- intermittentLung, Thorax, or Respiration: Changes in lung weightFAATDF 16,128,1991

Reviews

OrganizationStandardReference
American Conference of Governmental Industrial Hygienists (ACGIH)Threshold Limit Value-time-weighted average 0.1 f/cubic centimeter (resp)DTLVS* TLV/BEI,2013
American Conference of Governmental Industrial Hygienists (ACGIH)Threshold Limit Value-time-weighted average 10 mg/m3 (inhal); 3 mg/m3 (resp)DTLVS* TLV/BEI,2013
American Conference of Governmental Industrial Hygienists (ACGIH)Threshold Limit Value-Suspected human carcinogenDTLVS* TLV/BEI,2013

Standards and Regulations

OrganizationStandardReference
Mine Safety and Health Administration (MSHA) STANDARDNUISANCE PARTICULATESDTLWS* 3,28,1973
Occupational Exposure Limit IN ARGENTINA, BULGARIA, COLOMBIA, JORDAN check ACGIH TLV;
Occupational Exposure Limit IN SINGAPORE, VIETNAM check ACGIH TLV
Occupational Exposure Limit-AUSTRIAMAK-TMW 5 mg/m3;KZW 10 mg/m3, resp, 2007
Occupational Exposure Limit-BELGIUMtime-weighted average 10 mg/m3, MAR2002
Occupational Exposure Limit-FRANCEVME 10 mg/m3, FEB2006
Occupational Exposure Limit-GERMANYMAK 1.5 mg/m3, resp, 2011
Occupational Exposure Limit-KOREAtime-weighted average 10 mg/m3, 2006
Occupational Exposure Limit-MEXICOtime-weighted average 10 mg/m3;short term exposure limit 20 mg/m3 (inhalable), 2004
Occupational Exposure Limit-NEW ZEALANDtime-weighted average 10 mg/m3 (inspirable dust), JAN2002
Occupational Exposure Limit-PERUtime-weighted average 10 mg/m3 (inhal), 3 mg/m3 (resp), JUL2005
Occupational Exposure Limit-RUSSIAtime-weighted average 6 mg/m3, JUN2003
Occupational Exposure Limit-SWEDENtime-weighted average 0.2 f/cc, Carcinogen, JUN2005
Occupational Exposure Limit-SWITZERLANDMAK-week 3 mg/m3, resp, JAN2011
Occupational Exposure Limit-THE NETHERLANDSMAC-TGG 10 mg/m3, 2003
Occupational Exposure Limit-UNITED KINGDOMtime-weighted average 10 mg/m3 (inhal. dust), OCT2007
Occupational Exposure Limit-UNITED KINGDOMtime-weighted average 4 mg/m3 (resp. dust), OCT2007
Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Construction)8H time-weighted average 15 mg/m3, total dustCFRGBR 29,1926.55,1994
Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Construction)8H time-weighted average 5 mg/m3, respirable fractionCFRGBR 29,1926.55,1994
Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (General Industry)8H time-weighted average 15 mg/m3, total dustCFRGBR 29,1910.1000,1994
Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (General Industry)8H time-weighted average 5 mg/m3, respirable fractionCFRGBR 29,1910.1000,1994
Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Shipyards)8H time-weighted average 15 mg/m3, total dustCFRGBR 29,1915.1000,1993
Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Shipyards)8H time-weighted average 5 mg/m3, respirable fractionCFRGBR 29,1915.1000,1993

NIOSH Documentation and Surveillance

OrganizationStandardReference
National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Level TO SILICON CARBIDE, resp. fraction-air10H time-weighted average 5 mg/m3NIOSH* DHHS #92-100,1992
National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Level TO SILICON CARBIDE, total dust-air10H time-weighted average 10 mg/m3NIOSH* DHHS #92-100,1992
National Occupational Exposure Survey 1983Hazard Code X4228; Number of Industries 4; Total Number of Facilities 158; Number of Occupations 12; Total Number of Employees Exposed 8693; Total Number of Female Employees Exposed 84
National Occupational Exposure Survey 1983Hazard Code X6494; Number of Industries 25; Total Number of Facilities 1250; Number of Occupations 22; Total Number of Employees Exposed 17481; Total Number of Female Employees Exposed 1482
National Occupational Exposure Survey 1983Hazard Code 17525; Number of Industries 129; Total Number of Facilities 13729; Number of Occupations 97; Total Number of Employees Exposed 250945; Total Number of Female Employees Exposed 19568
National Occupational Hazard Survey 1974Hazard Code 17525; Number of Industries 184; Total Number of Facilities 25235; Number of Occupations 97; Total Number of Employees Exposed 268082

Status in Federal Agencies

OrganizationReference
EPA TSCA Section 8(b) CHEMICAL INVENTORY
EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JANUARY 2001
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