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Sulfur monochloride

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Synonyms & Trade Names
Sulfur chloride, Sulfur subchloride, Thiosulfurous dichloride
CAS No.
10025-67-9
RTECS No.
WS4300000
DOT ID & Guide
1828 137
Formula
S₂Cl₂
Conversion
1 ppm = 5.52 mg/m3
IDLH
5 ppm
See: 10025679
Exposure Limits
NIOSH REL
C 1 ppm (6 mg/m3)
OSHA PEL
TWA 1 ppm (6 mg/m3) See Appendix G
Measurement Methods
None available
See: NMAM or OSHA Methods
Physical Description
Light-amber to yellow-red, oily liquid with a pungent, nauseating, irritating odor.
Molecular Weight
135.0
Boiling Point
280°F
Freezing Point
-107°F
Solubility
Decomposes
Vapor Pressure
7 mmHg
Ionization Potential
9.40 eV
Specific Gravity
1.68
Flash Point
245°F
Upper Explosive Limit
?
Lower Explosive Limit
?
Class IIIB Combustible Liquid: Fl.P. at or above 200°F.
Incompatibilities & Reactivities
Peroxides, oxides of phosphorous, organics, water [Note: Decomposes violently in water to form hydrochloric acid, sulfur dioxide, sulfur, sulfite, thiosulfate, and hydrogen sulfide. Corrosive to metals.]
Exposure Routes
inhalation, ingestion, skin and/or eye contact
Symptoms
irritation eyes, skin, mucous membrane; lacrimation (discharge of tears); cough; eye, skin burns; pulmonary edema
Target Organs
Eyes, skin, respiratory system
Personal Protection/Sanitation
(See protection codes)
Skin:Prevent skin contact
Eyes:Prevent eye contact
Wash skin:When contaminated
Remove:When wet or contaminated
Change:No recommendation
Provide:Eyewash, Quick drench
First Aid
(See procedures)
Eye:Irrigate immediately
Skin:Water flush immediately
Breathing:Respiratory support
Swallow:Medical attention immediately
Respirator Recommendations

NIOSH/OSHA

Up to 5 ppm:
(APF = 50) Any chemical cartridge respirator with a full facepiece and cartridge(s) providing protection against the compound of concern
(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted canister providing protection against the compound of concern
(APF = 25) Any powered, air-purifying respirator with cartridge(s) providing protection against the compound of concern£
(APF = 50) Any self-contained breathing apparatus with a full facepiece
(APF = 50) Any supplied-air respirator with a full facepiece

Emergency or planned entry into unknown concentrations or IDLH conditions:
(APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode
(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus

Escape:
(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted canister providing protection against the compound of concern
Any appropriate escape-type, self-contained breathing apparatus

Important additional information about respirator selection

See also
INTRODUCTION   ICSC CARD: 0958   MEDICAL TESTS: 0216
Page last reviewed: October 30, 2019
Content source: National Institute for Occupational Safety and Health