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Registry of Toxic Effects of Chemical Substances (RTECS)

Tin monoxide

RTECS #

XQ3700000

CAS #

21651-19-4

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EPA TSCA Section 8(d) unpublished health/safety studies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