Carbon disulfide formula and properties
Carbon disulfide, also known as carbon bisulfide or dithiocarbonic anhydride, has the formula CS2, It has a linear structure, which makes it non-polar and insoluble in water. Its molecular weight is 75.94 g/mol. The boiling point of carbon disulfide is 46.2. It happenshey c and -111.5 . melting point ofhey C. Carbon disulfide may be colorless or pale yellow and is a liquid at room temperature. Depending on the purity of the product its smell can range from sweet to rotten and unpleasant. Reagent-quality carbon disulfide usually has an unpleasant odor due to impurities. Its density is 1.26 g/cm, which makes it denser than water or air. It is highly flammable, with a flash point of -30. Ishey c. Furthermore, it will ignite in concentrations as low as 1% and as high as 50% vapor in the air. It is also considered an irritant and a health hazard.
Most of the world’s carbon disulfide is used to produce rayon. However, carbon disulfide is also part of the production of cellophane, items such as kitchen sponges and many industrial chemicals, including carbon tetrachloride. Carbon disulfide is helpful in the manufacture of rubber or may be a solvent, especially for sulfur-containing compounds. It can also be an insecticide and in the past served as an anthelmintic in veterinary medicine. At one point, carbon disulfide was created by reacting carbon and sulfur at extremely high temperatures. Now, a low-temperature process is commonly used, using natural gas as the carbon source. Carbon disulfide exists in nature as one of the chemicals present in volcanic eruptions and in low concentrations as a gas released by marshes. As a result, it is a trace gas in the atmosphere.
- As a solvent (paint thinner and remover, bromine, iodine, phosphorus, selenium, sulfur, asphalt, fats, resins and rubber)
- As a fluid property modulator (as a coagulation agent, anti-foaming agent, to provoke changes in viscosity)
- in industrial construction
- in the manufacture of laboratory chemicals
- in the manufacture or processing of metals
- in rubber vulcanization
- in textile manufacturing
- in the manufacture of agrochemicals
- As an insecticide/fungicide/bicide
- As a food insecticide (added to herbs and spices)
Carbon disulfide is essential in many processes to make industrial chemicals. For example, when reacted with organic molecules containing an alcohol group such as phenol, carbon disulfide produces xanthates, also known as alkali metal dithiocarbonates. Alkali metal hydroxide is required to catalyze the reaction. Xanthate is used in the manufacture of cellophane.
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