Silicon
RTECS #
VW0400000
CAS #
Updated
June 2017
Molecular Weight
28.09
Molecular Formula
Si
Synonyms
Defoamer S-10
Polyeristalline silicon powder
Silicon (ACGIH:OSHA)
Polyeristalline silicon powder
Silicon (ACGIH:OSHA)
Skin and Eye Irritation and References
| Route/Organism | Dose | Effect | Reference |
|---|---|---|---|
| eye /rabbit | 3 mg | mild | FAONAU 53A,21,1974 |
Acute Toxicity Data and References
| Route/Organism | Dose | Effect | Reference |
|---|---|---|---|
| intraperitoneal/rat | lowest published lethal dose: 500 mg/kg | Olfaction: Other olfaction effects Eye: Other eye effects Lung, Thorax, or Respiration: Respiratory stimulation | NTIS** OTS0536164 |
| oral/rat | lethal dose (50 percent kill): 3160 mg/kg | FAONAU 53A,21,1974 |
Reviews
| Organization | Standard | Reference |
|---|---|---|
| TOXICOLOGY REVIEW | FCTOD7 91,42,2016 |
Standards and Regulations
| Organization | Standard | Reference |
|---|---|---|
| Mine Safety and Health Administration (MSHA) STANDARD-air | time-weighted average 10 mg/m3 | DTLWS* 3,27,1973 |
| Occupational Exposure Limit IN ARGENTINA, BULGARIA, COLOMBIA, JORDAN check ACGIH TLV; | ||
| Occupational Exposure Limit IN SINGAPORE, VIETNAM check ACGIH TLV | ||
| Occupational Exposure Limit-BELGIUM | time-weighted average 10 mg/m3, MAR2002 | |
| Occupational Exposure Limit-DENMARK | time-weighted average 10 mg/m3, MAY2011 | |
| Occupational Exposure Limit-FRANCE | VME 10 mg/m3, FEB2006 | |
| Occupational Exposure Limit-ICELAND | time-weighted average 0.5 ppm (0.7 mg/m3), NOV2011 | |
| Occupational Exposure Limit-KOREA | time-weighted average 10 mg/m3, 2006 | |
| Occupational Exposure Limit-MEXICO | time-weighted average 10 mg/m3;short term exposure limit 20 mg/m3 (inhalable), 2004 | |
| Occupational Exposure Limit-NEW ZEALAND | time-weighted average 10 mg/m3 (inspirable dust), JAN2002 | |
| Occupational Exposure Limit-NORWAY | time-weighted average 10 mg/m3, JAN1999 | |
| Occupational Exposure Limit-PERU | time-weighted average 10 mg/m3 (inhal), 4 mg/m3 (resp), JUL2005 | |
| Occupational Exposure Limit-SWITZERLAND | MAK-week 3 mg/m3, resp, JAN2011 | |
| Occupational Exposure Limit-THE NETHERLANDS | MAC-TGG 10 mg/m3, 2003 | |
| Occupational Exposure Limit-UNITED KINGDOM | time-weighted average 10 mg/m3 (inhal. dust), OCT2007 | |
| Occupational Exposure Limit-UNITED KINGDOM | time-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 dust | CFRGBR 29,1926.55,1994 |
| Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Construction) | 8H time-weighted average 5 mg/m3, respirable fraction | CFRGBR 29,1926.55,1994 |
| Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (General Industry) | 8H time-weighted average 15 mg/m3, total dust | CFRGBR 29,1910.1000,1994 |
| Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (General Industry) | 8H time-weighted average 5 mg/m3, respirable fraction | CFRGBR 29,1910.1000,1994 |
| Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Shipyards) | 8H time-weighted average 15 mg/m3, total dust | CFRGBR 29,1915.1000,1993 |
| Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Shipyards) | 8H time-weighted average 5 mg/m3, respirable fraction | CFRGBR 29,1915.1000,1993 |
NIOSH Documentation and Surveillance
| Organization | Standard | Reference |
|---|---|---|
| National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Level TO SILICON, respirable fraction-air | 10H time-weighted average 5 mg/m3 | NIOSH* DHHS #92-100,1992 |
| National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Level TO SILICON, total dust-air | 10H time-weighted average 10 mg/m3 | NIOSH* DHHS #92-100,1992 |
| National Occupational Exposure Survey 1983 | Hazard Code X4229; Number of Industries 1; Total Number of Facilities 12; Number of Occupations 5; Total Number of Employees Exposed 1740; Total Number of Female Employees Exposed 503 | |
| National Occupational Exposure Survey 1983 | Hazard Code X4230; Number of Industries 6; Total Number of Facilities 118; Number of Occupations 6; Total Number of Employees Exposed 1962; Total Number of Female Employees Exposed 112 | |
| National Occupational Exposure Survey 1983 | Hazard Code X6495; Number of Industries 1; Total Number of Facilities 19; Number of Occupations 2; Total Number of Employees Exposed 2379 | |
| National Occupational Exposure Survey 1983 | Hazard Code 68695; Number of Industries 296; Total Number of Facilities 59062; Number of Occupations 129; Total Number of Employees Exposed 693583; Total Number of Female Employees Exposed 28164 | |
| National Occupational Hazard Survey 1974 | Hazard Code 68695; Number of Industries 48; Total Number of Facilities 3856; Number of Occupations 66; Total Number of Employees Exposed 99138 |
Status in Federal Agencies
| Organization | Reference |
|---|---|
| EPA TSCA Section 8(b) CHEMICAL INVENTORY | |
| EPA TSCA Section 8(d) unpublished health/safety studies | |
| EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JANUARY 2001 |
Page last reviewed: November 16, 2018
Content
source: National Institute for Occupational Safety and Health