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Registry of Toxic Effects of Chemical Substances (RTECS)

Thionyl chloride

RTECS #

XM5150000

CAS #

7719-09-7

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
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