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Tin monoxide

RTECS #
XQ3700000
CAS #
21651-19-4
See: NMAM or OSHA Methods
Updated
September 2013
Molecular Weight
134.69
Molecular Formula
OSn
Synonyms
Stannous oxide
Tin oxide (OSHA)
Tin oxide (Sn2O2)
Tin oxide (SnO)
Tin(II) oxide

Acute Toxicity Data and References

Route/OrganismDoseEffectReference
oral/mouse lethal dose (50 percent kill): 775 mg/kgHBTME* -,839,2007

Other Multiple Dose Data and References

Route/OrganismDoseEffectReference
inhalation/man lowest published toxic concentration: 96.5 pph/15Y- intermittentLung, Thorax, or Respiration: Fibrosis, focal (pneumoconiosis)VCVN1* -,411,1988

Reviews

OrganizationStandardReference
American Conference of Governmental Industrial Hygienists (ACGIH)Threshold Limit Value-time-weighted average 2 mg(Sn)/m3DTLVS* TLV/BEI,2013
TOXICOLOGY REVIEWHBTME* ,839,2007

Standards and Regulations

OrganizationStandardReference
Occupational Exposure Limit-BELGIUMtime-weighted average 2 mg(Sn)/m3, Skin, MAR2002
Occupational Exposure Limit-HUNGARYtime-weighted average 2 mg(Sn)/m3, short term exposure limit 8 mg(Sn)/m3, Skin, SEP2000
Occupational Exposure Limit-KOREAtime-weighted average 2 mg(Sn)/m3, 2006
Occupational Exposure Limit-NEW ZEALANDtime-weighted average 2 mg(Sn)/m3, JAN2002
Occupational Exposure Limit-SWITZERLANDMAK-week 2 mg(Sn)/m3, KZG-week 4 mg(Sn)/m3, inhal, JAN2011
Occupational Exposure Limit-UNITED KINGDOMtime-weighted average 2 mg(Sn)/m3;short term exposure limit 4 mg(Sn)/m3, OCT2007
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 Occupational Exposure Survey 1983Hazard Code 82157; Number of Industries 4; Total Number of Facilities 71; Number of Occupations 4; Total Number of Employees Exposed 2018; Total Number of Female Employees Exposed 737

Status in Federal Agencies

OrganizationReference
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EPA TSCA Section 8(d) unpublished health/safety studies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