Benzene is an important organic chemical compound with the chemical formula C6H6. The benzene molecule is composed of 6 carbon atoms joined in a ring with 1 hydrogen atom attached to each. Because it contains only carbon and hydrogen atoms, benzene is classed as a hydrocarbon. Benzene is a natural constituent of crude oil and is one of the elementary petrochemicals. Because of the cyclic continuous pi bond between the carbon atoms, benzene is classed as an aromatic hydrocarbon, the second [n]-annulene ([6]-annulene).
Synthetic round slings offer a number of advantages for rigging purposes. The most commonly used synthetic round slings are made of nylon- or polyester-type yarns. Each synthetic material has its own unique properties. Certain synthetic materials perform better than others in specific applications and environments.
Synthetic fabrics are textiles made from man-made rather than natural fibers. Some examples of synthetic fabrics are polyester, acrylic, nylon, rayon, acetate, spandex, lastex and kevlar.Synthetic fibres are made by the joining of monomers into polymers, by the process of polymerization.A synthetic fibre, when magnified, looks like plastic spun together. The fabric is made from chemically produced fibers.The chemicals used to make the fibers are sodium hydroxide and carbon disulphide which are derived from coal, oil, or natural gas.The chemicals are in liquid form and are forced through tiny holes called spinnerets.he fabric is made from chemically produced fibers. The chemicals used to make the fibers are sodium hydroxide and carbon disulphide which are derived from coal, oil, or natural gas. The chemicals are in liquid form and are forced through tiny holes called spinnerets.