Benzene is prepared in the laboratory as well as in the chemical industry . Benzene is a starting material for many other aromatic hydrocarbons. Industrial production of Benzene Benzene is firstly discovered in1825 by Michael Faraday who isolate it from oily condensate that was deposited in a compressed gas that was used at that time for the purpose of illumination. This gas was produced by the hydrolysis of whale oil. Benzene and some other simple aromatic compounds are the main starting materials for nearly all aromatic compounds. Benzene is prepared in a laboratory or in an industry. Benzene in addition to as a starting material for other hydrocarbons, it is used as a solvent. There was therefore high demand for benzene and other simple aromatic compounds. Their demand is mainly met by two natural sources namely Coal and petroleum. There are the following methods for the production of benzene on industrial scales : 1. Fractional distillation of coal tar (coal tar is ob...
Plastics are Organic synthetic materials. Chemistry of Plastics The polymerization process. This way the monomers are joined together in a sequence to grow in a specific way. The monomer word plastic is derived from the Greek word meanings ''to grow''. Hence it is synthesized by there are joined together in straight chain or branched chain. It decides the nature of plastic that it would be thermosetting or thermoplastics. The raw materials are of organic in nature i.e natural gas, oils,or plants. By refining the raw materials ethene or propene gas are obtained that are basics raw materials and when the cracking of ethene and propene are obtained this ethylene or propylene is basically, used as monomers in the polymerization of plastic but the derivatives of ethylene or propylene are also used. These derivatives are PVC, nylon, styrene, polyamide, poly-acetate etc. Types of plastics 1. Thermoplastics: ...