Polyvinyl chloride, commonly abbreviated PVC, is the third-most widely-produced plastic, after polyethylene and polypropylene. PVC is widely used in construction because it is durable, cheap, and easily worked. The average annual growth rate of 3.3% seen in the past eight years is likely to be surpassed in future. Specialists forecast PVC demand to increase at an average annual rate of 3.9% over the next years.
It can be made softer and more flexible by the addition of plasticizers, the most widely used being phthalates. In this form, it is used in clothing and upholstery, electrical cable insulation, inflatable products and many applications in which it replaces rubber.
Pure polyvinyl chloride without any plasticizer is a white, brittle solid. It is insoluble in alcohol, but slightly soluble in tetrahydrofuran.