Thionyl chloride

RTECS #
XM5150000
CAS #
7719-09-7
See: NMAM or OSHA Methods
Updated
September 2013
Molecular Weight
118.96
Molecular Formula
Cl2OS
Synonyms
Sulfinyl chloride
Sulfur chloride oxide
Sulfurous dichloride
Sulfurous oxychloride
Thionyl chloride (ACGIH)
Thionyl dichloride

Acute Toxicity Data and References

Route/OrganismDoseEffectReference
inhalation/rat lethal concentration (50 percent kill): 500 ppm/1HNTIS** AD-A148-952

Reviews

OrganizationStandardReference
American Conference of Governmental Industrial Hygienists (ACGIH)Threshold Limit Value-ceiling concentration 0.2 ppmDTLVS* TLV/BEI,2013

Standards and Regulations

OrganizationStandardReference
Occupational Exposure Limit IN ARGENTINA, BULGARIA, COLOMBIA, JORDAN check ACGIH TLV;
Occupational Exposure Limit IN SINGAPORE, VIETNAM check ACGIH TLV
Occupational Exposure Limit-AUSTRALIAceiling concentration 1 ppm (4.9 mg/m3), JUL2008
Occupational Exposure Limit-BELGIUMtime-weighted average 1 ppm (5 mg/m3), MAR2002
Occupational Exposure Limit-DENMARKceiling concentration 1 ppm (5 mg/m3), MAY2011
Occupational Exposure Limit-FINLANDceiling concentration 1 ppm (5 mg/m3), NOV2011
Occupational Exposure Limit-ICELANDshort term exposure limit 1 ppm (5 mg/m3), NOV2011
Occupational Exposure Limit-KOREAceiling concentration 1 ppm (5 mg/m3), 2006
Occupational Exposure Limit-NEW ZEALANDceiling concentration 1 ppm (4.9 mg/m3), JAN2002
Occupational Exposure Limit-PERUshort term exposure limit 1 ppm (4.9 mg/m3), JUL2005
Occupational Exposure Limit-RUSSIAshort term exposure limit 0.3 mg/m3, Skin, JUN2003
Occupational Exposure Limit-SWITZERLANDMAK-week 1 ppm (5 mg/m3), JAN2011
Occupational Exposure Limit-THE NETHERLANDSMAC-C 5 mg/m3, 2003
Occupational Exposure Limit-UNITED KINGDOMshort term exposure limit 1 ppm (4.9 mg/m3), OCT2007

NIOSH Documentation and Surveillance

OrganizationStandardReference
National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Level TO THIONYL CHLORIDE-airceiling concentration 1 ppmNIOSH* DHHS #92-100,1992
National Occupational Exposure Survey 1983Hazard Code 82024; Number of Industries 2; Total Number of Facilities 43; Number of Occupations 6; Total Number of Employees Exposed 7082; Total Number of Female Employees Exposed 1223
National Occupational Hazard Survey 1974Hazard Code 82024; Number of Industries 3; Total Number of Facilities 73; Number of Occupations 7; Total Number of Employees Exposed 2440

Status in Federal Agencies

OrganizationReference
EPA TSCA Section 8(b) CHEMICAL INVENTORY
EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JANUARY 2001
Page last reviewed: November 16, 2018