Coal Tar:  It is the byproduct when production of Fine coke， belongs to medium temperature coal tar.

   1)Application：Making phthalic anhydride, colophony, engineering plastic, synthetic fibre, acridine,crude oil, artificial  petroleum, and so on.

    a) Density（20℃）＜１．１０×１０³kg/m³

    b) Viscosity number/unit （１００℃）＜４.２°Ｅ

    c) Calorific value＞３６０００J/g

    d) Moisture content: About 4℅

    e) Ash content＜０．５％

    f）Mechanical impurity ＜０．５％

    g) Sulphur content＜１％

    h) Flash point＞１００ºC