The article contains sections titled: 1. Introduction 2. Physical Properties 3. Chemical Properties 4. Production 4.1. Thermodynamics and Rates of Reaction 4.2. Production from Charcoal and Sulfur 4.3. Production from Methane and Sulfur 4.4. Other Processes 5. Environmental Aspects 6. Quality Specifications and Analytical Methods 7. Storage and Transportation 8. Uses and Economic Aspects 9. Toxicology and Occupational Health 10. Carbonyl Sulfide