Editing Petrochemical (section)

== Aromatics ==
{{Main|BTX (chemistry)}}
[[File:Petrochem2.png|thumb|upright=2.65|Chemicals produced from benzene]]
*[[benzene]] – the simplest aromatic hydrocarbon
**[[ethylbenzene]] – made from benzene and ethylene
*** [[styrene]] – made by dehydrogenation of ethylbenzene; used as a monomer
**** [[polystyrene]]s – polymers with styrene as a monomer
** [[cumene]] – isopropylbenzene; a feedstock in the [[cumene process]]
*** [[phenol]] – hydroxybenzene; often made by the cumene process
*** [[acetone]] – dimethyl ketone; also often made by the cumene process
*** [[bisphenol A]] – a type of "double" phenol used in polymerization in epoxy resins and making a common type of polycarbonate
**** [[epoxy resin]]s – a type of polymerizing glue from bisphenol A, epichlorohydrin, and some [[amine]]
**** [[polycarbonate]] – a plastic polymer made from bisphenol A and [[phosgene]] (carbonyl dichloride)
*** [[solvents]] – liquids used for dissolving materials; examples often made from petrochemicals include ethanol, isopropyl alcohol, acetone, benzene, toluene, xylenes
** [[cyclohexane]] – a 6-carbon aliphatic cyclic hydrocarbon sometimes used as a non-polar solvent
*** [[adipic acid]] – a 6-carbon di[[carboxylic acid]], which can be a precursor used as a co-monomer together with a di[[amine]] to form an alternating copolymer form of nylon.
**** [[nylon]]s – types of [[polyamide]]s, some are alternating copolymers formed from copolymerizing [[dicarboxylic acid]] or derivatives with diamines
*** [[caprolactam]] – a 6-carbon cyclic [[amide]]
**** [[nylon]]s – types of [[polyamide]]s, some are from polymerizing caprolactam
** [[nitrobenzene]] – can be made by single nitration of benzene
*** [[aniline]] – aminobenzene
**** [[methylene diphenyl diisocyanate]] (MDI) – used as a co-monomer with [[diol]]s or polyols to form [[polyurethanes]] or with di- or poly[[amine]]s to form [[polyurea]]s
** [[alkylbenzene]] – a general type of aromatic hydrocarbon, which can be used as a precursor for a [[sulfonate]] [[surfactant]] (detergent)
***[[detergent]]s – often include [[surfactant]]s types such as alkylbenzene sulfonates and nonylphenol ethoxylates
** [[chlorobenzene]]
[[File:Petrochem4.png|thumb|upright=1.6|Chemicals produced from toluene]]
* [[toluene]] – methylbenzene; can be a solvent or precursor for other chemicals
** [[benzene]]
** [[toluene diisocyanate]] (TDI) – used as co-monomers with polyether polyols to form polyurethanes or with di- or poly[[amine]]s to form [[polyurea]]s [[polyurethane]]s
** [[benzoic acid]] – carboxybenzene
*** [[caprolactam]]
[[File:Petrochem5.png|thumb|upright=1.8|Chemicals produced from xylenes]]
* [[xylene|mixed xylenes]] – any of three dimethylbenzene isomers, could be a solvent but more often precursor chemicals
** [[O-Xylene|''ortho''-xylene]] – both [[methyl group]]s can be oxidized to form (''ortho-'')phthalic acid
*** [[phthalic anhydride]]
** [[P-Xylene|''para''-xylene]] – both methyl groups can be oxidized to form terephthalic acid
*** [[dimethyl terephthalate]] – can be copolymerized to form certain polyesters
**** [[polyester]]s – although there can be many types, [[polyethylene terephthalate]] is made from petrochemical products and is very widely used in petrol stations 
*** purified [[terephthalic acid]] – often copolymerized to form [[polyethylene terephthalate]]
**** [[polyester]]s
** [[M-Xylene|''meta''-xylene]]
*** [[isophthalic acid]]
**** [[Alkyd|alkyd resins]]
**** [[Polyamide-imide|polyamide resins]]
**** [[Polyester resin|unsaturated polyesters]]