Carbonyl sulfide

Synonyms

Carbon monoxide monosulfide; Carbon oxide sulfide; Carbon oxysulfide; Oxycarbon sulfide; UN2204; [ChemIDplus]

Category

Other Toxic Gases & Vapors

Description

Colorless gas with a rotten egg odor; [CHEMINFO MSDS]

Sources/Uses

Used as a chemical intermediate; Workers may be exposed during petroleum refining, coal destructive distillation, or rayon production; [HSDB] Produced naturally in soil and compost; Other sources are tobacco smoke, burning fossil fuels, gasification, and making petrochemicals; Also used as a grain fumigant and to make drugs, flavors, fragrances, pesticides, and rayon; [ACGIH]

Comments

Liquefied gas can cause frostbite; [NJ-HSFS] TLV Basis = CNS impairment; Carbonyl sulfide is less toxic than hydrogen sulfide in animal experiments; A slight methemoglobinemia occurs in animals exposed to > 151 ppm; Adverse effects are due mainly to hydrogen sulfide; [ACGIH] Decomposes to hydrogen sulfide in moist air or lungs; [CHEMINFO MSDS] See "Hydrogen sulfide."

Biomedical References

Insufficient data

Yes

5 ppm

9410 mm Hg

LC50 (rat) = 1,070 ppm/4H

burn readily

Yes

MetHgb is secondary toxic effect

Other Poison

Chemical Asphyxiant

Diseases

Occupational diseases associated with exposure to this agent:

• Pneumonitis, toxic

Processes

Industrial Processes with risk of exposure:

• Farming (Pesticides)
• Petroleum Production and Refining
• Textiles (Fiber & Fabric Manufacturing)

Activities

Activities with risk of exposure:

• Smoking cigarettes