Year: 2007
Type: other
Abstract: Words in italics means there is also more information under these headings.ABS is short for poly(acrylonitrile-butadiene-styrene) and this is a copolymer, so called because it is made from a mixture of basic monomer units, each of which bring some desirable property to the final product.ABS is widely used to make children's toys, car facias, and fingernail extensions.Acrylonitrile, butadiene and styrene can be polymerised individually.Acrylonitrile yields polyacrylonitrile which makes soft fibres for clothing (sold as Orlon and Courtelle), while butadiene forms polybutadiene or synthetic rubber, and styrene as polystyrene is known for its excellent insulation properties.Aluminium chloride comes in two forms: anhydrous aluminium chloride (chemical formula Al 2 Cl 6 ) which is dangerous to handle on account of its reaction with water when it generates a lot of heat, and aluminium chloride hexahydrate (chemical formula Al 2 Cl 6 .6H 2 O) which is safe, although it behaves as a weak acid when dissolved in water.There is also basic aluminium chloride which has some of the chlorides replaced by hydroxides (OH) and there are two variants of this which are commonly used: Al 2 (OH) 5 Cl 2 and Al 2 (OH) 4 Cl 2 .They are often referred to as aluminium chlorohydrate and they are neither dangerous nor acidic. 205Better Looking, Better Living, Better Loving.
Source: Wiley eBooks
Author: Dr. John Emsley
Language: English
Open Access status: bronze
OpenAlex ID: W4205639204