What is carbonyl sulfide used for?

What is carbonyl sulfide used for?

Carbonyl sulfide does not have many commercial uses, as it is primarily used in small-scale chemical syntheses. It is an intermediate in the manufacture of certain herbicides. It may also be used in the agricultural industry as a grain fumigant.

What does sulfide react with?

Oxidation of sulfide is a complicated process. Depending on the conditions, the oxidation can produce elemental sulfur, polysulfides, polythionates, sulfite, or sulfate. Metal sulfides react with halogens, forming sulfur and metal salts.

How do you remove carbonyl sulfide?

Therefore, the removal of carbonyl sulfide is the main problem to solve in the process of feed gas deep purification. Currently, the principal methods of carbonyl sulfide removal include hydrogenation, hydrolysis, absorption, adsorption, photolysis, and oxidation, [16–22].

What type of bond is carbonyl sulfide?

double bond
Carbonyl sulfide is the chemical compound with the linear formula OCS. Normally written as COS as a chemical formula that does not imply its structure, it is a colourless flammable gas with an unpleasant odor. It is a linear molecule consisting of a carbonyl group double bonded to a sulfur atom.

Is carbonyl sulfide toxic?

Carbonyl sulfide is a colorless, poisonous, flammable gas with a distinct sulfide odor. The gas is toxic and narcotic in low concentrations and presents a moderate fire hazard. Acute (short-term) inhalation of high concentrations of carbonyl sulfide may cause narcotic effects in humans.

How is carbonyl sulfide formed?

3 Carbonyl sulfide. Carbonyl sulfide (OCS) is formed in pyrolysis and gasification of solid fuels [65,133]. In the recovery of sulfur from acid gases, OCS can be formed from oxidation of CS2 [108] or from reaction of H2S with carbon oxides [134].

Is sulfide a good leaving group?

The positive charge on the sulfur also makes it an excellent leaving group, as the resulting product will be a neutral and very stable sulfide. All in all, in both reactions we have a reasonably good nucleophile, an electron-poor, unhindered electrophile, and an excellent leaving group.

What is the formula for carbonyl sulfide?

Carbonyl sulfide/Formula

Is Cos corrosive?

rbonyl sulfide (COS), which occurs as an impurity in commercial sources fo propane can hydrolyze in the presence of water to form hydrogen sulfide (H2S) and carbon dioxide (COS) is not itself corrosive, the hydrolysis product H2S is corrosive, especially in the presence of water.

Is carbonyl sulfide harmful to humans?

No human or animal studies have examined whether carbonyl sulfide exposure can cause cancer. HHS, IARC, and EPA have not classified carbonyl sulfide as to its carcinogenicity.

What is the source of carbonyl sulphide COS?

COS is produced in the surface waters through photochemical breakdown of organosulfur compounds. The oceans are also a large indirect source of COS via the emission and atmospheric oxidation of carbon disulfide and dimethylsulfide (Chin and Davis, 1993; Kettle et al., 2002; Watts, 2000).

What happens when carbonyl sulfide is oxidized to sulfate?

The atomic sulfur liberated in these reactions can be covalently bound to macromolecules or be oxidized to sulfate and excreted in urine. Carbonyl sulfide can be catalyzed by carbonic anhydrase to monothiocarbamate, which is spontaneously degraded to carbon dioxide and hydrogen sulfide.

What are catalysts for hydrolysis of carbonyl sulfide?

Catalytic hydrolysis technology of carbonyl sulfide (COS) at low temperature was reviewed, including the development of catalysts, reaction kinetics, and reaction mechanism of COS hydrolysis. It was indicated that the catalysts are mainly involved metal oxide and activated carbon.

What are the dangers of carbonyl sulfide gas?

Carbonyl sulfide is a colorless, poisonous, flammable gas with a distinct sulfide odor. The gas is toxic and narcotic in low concentrations and presents a moderate fire hazard. Under prolonged exposure to fire or intense heat the container may rupture violently or rocket. It is used in the synthesis of organic thio compounds.

How is carbonyl sulfide similar to carbon dioxide?

Carbonyl sulfide (COS) is a colorless gas with a sulfur-like odor. Like carbon dioxide (CO2), its molecular structure is linear; but unlike CO2 it is flammable. It decomposes slowly in water and more rapidly in the presence of base.