Metaxylene (MX)
Metaxylene (MX) is a colourless, flammable liquid that is separated from mixed xylenes created during the reforming of petroleum naphtha. MX is the preferred feedstock for purified isophthalic acid (PIA) which is used in the manufacture of polyethylene terephthalate (PET) bottles and unsaturated polyester resins (UPR).