2-Chloropropene(cas557-98-2) is an organic compound that belongs to the class of haloalkenes. It is a colorless liquid with a pungent odor and a flash point of -1°C. It is also known as allyl chloride or 3-chloropropene. In this article, we will discuss the chemical properties, uses, and manufacturing of 2-chloropropene. Nickname is isopropenyl chloride, 2-chloro-1-propene.
Chemical Properties of 2-Chloropropene
isopropenyl chloride has the molecular formula C3H5Cl and the molecular weight of 76.53 g/mol. It has a boiling point of 44.6°C and a melting point of -136°C. It is soluble in water, ethanol, ether, and acetone. It is flammable and reacts with strong oxidizing agents, bases, and metals.
2-Chloropropene has a double bond between the first and second carbon atoms, which makes it an unsaturated compound. It can undergo addition reactions with various reagents, such as hydrogen, halogens, water, alcohols, and acids. For example, when isopropenyl chloride reacts with hydrogen in the presence of a catalyst, it forms propene. When it reacts with bromine in water, it forms 1,2-dibromo-3-chloropropane.
Uses of 2-Chloropropene
2-Chloropropene is mainly used as an intermediate in the synthesis of other organic compounds. It is a precursor for the production of epichlorohydrin, which is used to make epoxy resins, glycerol, and pharmaceuticals. It is also a raw material for the manufacture of allyl alcohol, allylamine, allyl acetate, and other allyl derivatives.
2-chloro-1-propene is also used as a fumigant for soil sterilization and pest control. It can kill nematodes, fungi, bacteria, insects, and weeds. However, it is toxic to humans and animals and can cause irritation to the eyes, skin, and respiratory tract. It can also damage the liver, kidneys, and nervous system.
Manufacturing of 2-Chloropropene(cas557-98-2)
2-chloro-1-propene is mainly produced by the chlorination of propene. Propene is obtained from the cracking of petroleum or natural gas. The chlorination reaction can be carried out in the gas phase or in the liquid phase using different catalysts and conditions.
In the gas phase chlorination process, propene and chlorine are mixed in a reactor at high temperature (400-500°C) and pressure (10-20 atm). The reaction produces a mixture of 1-chloropropene, isopropenyl chloride, and 3-chloropropene. The mixture is then separated by fractional distillation to obtain pure 2-chloropropene.
In the liquid phase chlorination process, propene and chlorine are dissolved in an inert solvent such as carbon tetrachloride or chloroform. The reaction is carried out in the presence of a catalyst such as iron(III) chloride or aluminum chloride at low temperature (0-50°C) and pressure (1-5 atm). The reaction produces mainly isopropenyl chloride(cas557-98-2) with a small amount of 1-chloropropene. The product is then extracted from the solvent by distillation or extraction.
Conclusion
2-Chloropropene(cas557-98-2) is an important organic compound that has various applications in the chemical industry. It has some unique chemical properties that allow it to undergo addition reactions with different reagents. It is mainly used as an intermediate for the synthesis of epichlorohydrin and other allyl compounds. It is also used as a fumigant for soil sterilization and pest control. However, it is hazardous to human health and the environment and should be handled with care.
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