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Ortoxylol (orthoxylene or o-xylene)

Ortoxylol (orthoxylene or o-xylene)

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    Ortoxylol (o-xylene), 1,2-dimethylbenzene is a classic solvent for lacquers, paints, mastics and a high-octane additive for motor fuels.

    Ortoxylol also known as orthoxylene or o-xylene, is a colorless liquid organic compound with a sweet odor. It is one of the three isomers of xylene, the other two being meta-xylene and para-xylene. Orthoxylene is used primarily as a raw material in the production of phthalic anhydride, which is used to make polyester resins, plasticizers, and other industrial chemicals.

    Orthoxylene is also used as a solvent in the production of paints, varnishes, and coatings, as well as in the manufacture of dyes, pharmaceuticals, and perfumes. It is also used as a chemical intermediate in the production of other organic compounds, such as benzoic acid, terephthalic acid, and dimethyl terephthalate. Additionally, it is used as a fuel additive to increase the octane number of gasoline.

    It is flammable, requires proper storage and handling.

    It is classified as moderately hazardous — Hazard Class 3 substances.


    Visual appearance

    Transparent liquid without mechanical additives


    Density at 20ºС, g/cm3

    0,876 — 0,884


    Mass fraction of main substance, %, min



    Solidification temperature, °C



    Boiling point, °C



    Flash point TVZ, °C


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