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Chemicals

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There are currently 22 names in this directory beginning with the letter P.
Pasteurize
To eliminate disease causing micro-organisms and limit fermentation in liquids by heating.

PET, polyethylene terephthlate
Member of the polyester family commonly used in bottle resin, film, and fibers.

Petrochemical
Any chemical derived from crude oil, crude products, or natural gas. Petrochemicals are used in the manufacture of numerous products such as synthetic rubber, synthetic fibers (eg, nylon and polyester), plastics, fertilizers, paints, detergents, and pesticides.

Phenol
Intermediate chemical whose major derivatives include phenol A, cyclohexanes, and phenolic resin.

Photochemistry
Chemical reactions brought about by the action of light.

Physical properties
Properties not concerned with the chemistry of a product, such as melting point, boiling point, and hardness.

Plasticizer
A chemical added to vinyls to make them softer or more pliable.

Plastics
Synthetic materials with the ability to flow, take shape, and solidify.

PO/SM
Propylene oxide/styrene monomer. Usually refers to a production process that results in producing both products.

Polyethylene
Translucent to clear, tough, waxy solid that is unaffected by water and a wide range of chemicals.

Polymer
Hydrocarbon chain made by the repetition of units called monomers. Polyethylene is an example of a polymer made with ethylene as the repetitive unit or monomer.

Polymerization
Process by which monomers are joined in long chains to form polymers; generally requires high heat or pressure or the presence of a catalyst.

Polypropylene
A polymer with properties making it extremely versatile and able to be used in substitution for wood, metal, glass, and plastics.

Polystyrene
Low-cost plastic made from styrene.

Polyurethane
Any of various resins, widely varying in flexibility, used in tough chemical-resistant coatings, adhesives, and foams.

Polyvinyl chloride (PVC)
Part of the vinyls chain. In flexible form, used for film, flooring, auto upholstery, eg; in rigid form, used in siding for houses, and pipes, eg.

Preform
Compressed molding compound.

Primer
A coating applied to a bonding surface prior to the application of an adhesive to improve the quality of the bond.

Propane dehydrogenation
The process of forming propylene from propane.

Propylene
A three carbon molecule with a reactive double bond, that is C=C=C (C3H6) used to make gasoline components or as a feedstock for petrochemicals.

Propylene oxide (PO)
An alkyl epoxide used principally as a chemical intermediate.

Proton
Positively charged particle found in the nucleus of an atom.