Phthalic anhydride is a white solid obtained from partial oxidation with air of o-xylene on a solid bed. It is used in solid form in FIBCs of 500 kg or in molten form.
Cyclohexane is a naphthene produced by benzene hydrogenation. Its main use is the synthesis of cyclohexanol/cyclohexanone for the production of the caprolactam and adipic acid, precursors to nylon.