Carbonyl sulfide, also known as carbon oxysulfide and carbonyl sulfur, is an inorganic compound with the chemical formula COS. It is colorless and smelly with rotten eggs at normal temperature and pressure, slightly soluble in water, and rapidly soluble in alcohol, toluene and alkalicarbon disulfideandsulfur dioxideSimilar inorganic carbon compounds, gaseous COS molecules are linear, one carbon atom is connected with oxygen atom and sulfur atom with two double bonds, mainly used as organic synthesis intermediates for synthesisHerbicide Pill、Oat enemy, pesticide Badan, etc., also used as supercritical solvent.
Solubility: slightly soluble in water, rapidly soluble in alcohol, toluene and alkali[1]
Calculate chemical data
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Reference value for drainage parameter calculation (XlogP): 1.5
Number of hydrogen bond donors: 0
Number of hydrogen bond receptors: 2
Number of rotatable chemical bonds: 0
Number of tautomers: 0
Topological molecular polar surface area: 49.2
Number of heavy atoms: 3
Surface charge: 0
Complexity: 27.8
Number of isotope atoms: 0
Determine the number of atomic structure centers: 0
Number of uncertain atomic structure centers: 0
Determine the number of chemical bond structure centers: 0
Number of uncertain chemical bond structure centers: 0
Number of covalent bond units: 1[1]
purpose
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Mainly used as organic synthesis intermediate for synthesisHerbicide Pill、Oat enemy, pesticide Badan, etc., also used as supercritical solvent.
Measures and protection
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Respiratory system protection: when the concentration in the air exceeds the standard, it is recommended to wear a self-priming filter gas mask (half mask).In case of emergency rescue or evacuation, air respirator should be worn.
Eye protection: wear chemical safety goggles.
Body protection: Wear anti-static work clothes.
Hand protection: wear latex gloves.
Other protection: smoking is strictly prohibited at the work site.Keep good hygiene habits.
Leakage emergency treatment
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Evacuate the personnel in the leakage contaminated area to the windward place quickly, isolate them for 150m immediately, and strictly restrict access.Cut off the ignition source.It is recommended that emergency personnel wear self-contained positive pressure respirators and anti-static work clothes.Enter the site from the upwind.Cut off the leakage source as much as possible.Cover the sewer and other places near the leakage point with industrial coating or adsorption/absorbent to prevent gas from entering.If possible, use an exhaust fan to send the leaked gas to an open place or install an appropriate nozzle to burn it.Leaking containers shall be properly treated, repaired and inspected before reuse.
Operation, disposal, storage and transportation
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Precautions for operation: close operation and strengthen ventilation.Operators must be specially trained and strictly abide by the operating procedures.It is recommended that operators wear self-priming filter gas mask (half mask), chemical safety goggles, anti-static work clothes and latex gloves.Keep away from kindling and heat sources, and smoking is strictly prohibited in the workplace.Use explosion-proof ventilation systems and equipment.Prevent gas leakage into the air of the workplace.Avoid contact with oxidants and alkalis.In particular, avoid contact with water.Load and unload gently during transportation to prevent damage to packaging and containers.Fire fighting equipment and leakage emergency treatment equipment of corresponding types and quantities shall be provided.
Precautions for storage: store in a cool and ventilated warehouse.Keep away from kindling and heat sources.It shall be stored separately from oxidants, alkalis and edible chemicals, and mixed storage is strictly prohibited.Explosion proof lighting and ventilation facilities shall be adopted.It is prohibited to use mechanical equipment and tools that are easy to generate sparks.The storage area shall be equipped with leakage emergency treatment equipment.
Transportation precautions: the railway transportation must be reported to the railway bureau for trial operation, and the trial operation period is two years.After the test run, a test run report shall be written and submitted to the Ministry of Railways to officially announce the transportation conditions.When steel cylinders are used for transportation, safety helmets on steel cylinders must be worn.Cylinders are generally placed horizontally, and the mouth of the cylinder should be in the same direction, not crossed;The height shall not exceed the protective fence of the vehicle, and shall be firmly clamped with triangular wood pad to prevent rolling.The transport vehicles shall be equipped with corresponding types and quantities of fire-fighting equipment.The exhaust pipe of the vehicle transporting this article must be equipped with a fire retardant device. It is prohibited to use mechanical equipment and tools that are easy to generate sparks for loading and unloading.It is strictly prohibited to mix with oxidants, alkalis, edible chemicals, etc.Transport in the morning and evening in summer to prevent sunlight exposure.Keep away from kindling and heat sources during stopover.Road transportation shall be carried out according to the specified route, and do not stay in residential areas and densely populated areas.It is forbidden to slip during railway transportation.
security information
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Safety terminology
S16：Keep away from sources of ignition - No smoking.
Keep away from ignition sources and no smoking.
S26：In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
After eye contact, immediately flush with plenty of water and seek medical advice.
S38：In case of insufficient ventilation, wear suitable respiratory equipment.
Wear proper respirator in case of poor ventilation.
Risk terminology
R11：Highly flammable.
Highly flammable.
R20：Harmful by inhalation.
Harmful by inhalation.
R36/37/38：Irritating to eyes, respiratory system and skin.
