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CAS No.: | 463-58-1 |
---|---|
Name: | Carbonyl sulfide |
Article Data: | 357 |
Molecular Structure: | |
Formula: | CO S |
Molecular Weight: | 60.0764 |
Synonyms: | Carbonylsulfide (8CI); Carbon monoxide monosulfide; Carbon oxide sulfide; Carbonoxysulfide; Carbon oxysulfide (COS); Carbonyl sulfide (COS); OCS; Oxycarbonsulfide (COS); Thiocarbonyl oxide |
EINECS: | 207-340-0 |
Density: | 1.259g/cm3 |
Melting Point: | -139 C |
Boiling Point: | 46.2°Cat760mmHg |
Flash Point: | °C |
Appearance: | colourless gas with an unpleasant smell; cylinderwill be marked with red/yellow bands at valve end to denote contentsare both flammable and toxic |
Hazard Symbols: | Narcotic in high concentrations. Flammable, explosive limits in air 12–28.5%. |
Risk Codes: | R11; R20; R36/37/38 |
Safety: | Poison by intraperitoneal route. Mildly toxic by inhalation. Narcotic in high concentration. An irritant. May liberate highly toxic hydrogen sulfide upon decomposition. A very dangerous fire hazard and moderate explosion hazard when exposed to heat or flame. Can react vigorously with oxidizing materials. To fight fire, stop flow of gas or use CO2, dry chemical, or water spray. When heated to decomposition it emits toxic fumes of CO. See also CARBONYLS and SULFIDES. |
PSA: | 49.16000 |
LogP: | 0.25110 |
Conditions | Yield |
---|---|
With catalyst: La2O3-TiO2 highest activity with 1:1 La:Ti ratio; 500°C, 1 atm, in the presence of N2; | A <1 B 95% |
With catalyst: Fe-Al2O3 byproducts: CO2; highest SO2 reduction with 40 % Fe in the catalyst, maximum COS yield at 400°C; | |
With catalyst: Cu-Al2O3 H2O vapour diminishes catalyst activity; |
N-Acetylcysteine
A
1,3-dimethyl-2-imidazolidinone
B
carbon oxide sulfide
C
N,N'-bis(acetyl)cystine
J
C16H28N2O6S3
K
C16H28N2O6S4
L
1-Acetamido-1-(carbomethoxy)-2-methyl-2-propyl Hydrodisulfide
Conditions | Yield |
---|---|
With diethylenetriaminopentaacetic acid In aq. buffer at 37℃; pH=7.4; | A 87% B n/a C n/a D n/a E n/a F n/a G n/a H n/a I n/a J n/a K n/a L n/a |
di-O-isopropyl-S,S-phthaloyl dixanthate (unsymmetrical)
A
benzo[c]thiophene-1,3-dione
B
carbon oxide sulfide
C
O,S-diisopropyl xanthate
D
Biphthalidyliden
Conditions | Yield |
---|---|
at 250℃; for 0.5h; other dixanthate; | A 29% B 82% C 16% D 24% |
Conditions | Yield |
---|---|
byproducts: CO, CO2; at 1400 K, with excess of carbon; | A 81.16% B 10.82% C 8.02% |
byproducts: CO, CO2; at 1000 K, with excess of carbon; | A 37.08% B 3.22% C 59.7% |
Conditions | Yield |
---|---|
In neat (no solvent) at 120℃; for 6h; Rate constant; Product distribution; | A n/a B 81% |
phenyl isothiocyanate
1-cyclohexyl-4,5-diphenylimidazole 3-oxide
A
carbon oxide sulfide
Conditions | Yield |
---|---|
In dichloromethane at 20℃; for 20h; Cycloaddition; elimination; | A n/a B 81% |
methyl thioisocyanate
1-methyl-4,5-diphenyl-1H-imidazole 3-oxide
A
carbon oxide sulfide
Conditions | Yield |
---|---|
In dichloromethane at 20℃; for 20h; Cycloaddition; elimination; | A n/a B 76% |
1,4-diphenyl-1-ethylxanthyl-2,3-diazabutadiene
A
carbon oxide sulfide
B
diphenyl-[1,3,4]thiadiazole
Conditions | Yield |
---|---|
at 240℃; for 20h; sealed tube; | A n/a B 69% |
phenyl isothiocyanate
1-benzyl-4,5-dimethyl-1H-imidazole 3-oxide
A
carbon oxide sulfide
Conditions | Yield |
---|---|
In dichloromethane at 20℃; for 20h; Cycloaddition; elimination; | A n/a B 58% |
N-Acetylcysteine
A
carbon oxide sulfide
B
methyl 2-acetamido-3-mercapto-3-methylbutanoate
H
C16H28N2O6S3
I
C16H28N2O6S4
Conditions | Yield |
---|---|
With diethylenetriaminopentaacetic acid; ammonium bicarbonate In aq. buffer at 37℃; pH=7.4; Mechanism; Reagent/catalyst; Solvent; | A n/a B n/a C n/a D n/a E n/a F 53% G n/a H n/a I n/a |
|
Hazard Codes: F,Xn
Risk Statements: 11-20-36/37/38
Safety Statements: 16-26-38
RIDADR: UN 2204 2.3
WGK Germany: 3
RTECS: FG6400000
HazardClass: 2.3
Poison by intraperitoneal route. Mildly toxic by inhalation. Narcotic in high concentration. An irritant. May liberate highly toxic hydrogen sulfide upon decomposition. A very dangerous fire hazard and moderate explosion hazard when exposed to heat or flame. Can react vigorously with oxidizing materials. To fight fire, stop flow of gas or use CO2, dry chemical, or water spray. When heated to decomposition it emits toxic fumes of CO.