Terephthaloyl chlorideTerephthaloyl chloride (TCL, 1,4-benzenedicarbonyl chloride) is the acyl chloride of terephthalic acid. It is a white solid at room temperature. It is one of two precursors used to make para-Aramids like Twaron or Kevlar, the other being p-phenylenediamine. Read from the Chembox of the Wikipedia article Terephthaloyl chloride, revision 1371784158.

Property

Value

Formula

C8H4Cl2O2, 203.02 g/mol

Melting point

82.25 °C

Boiling point

265 °C

Density

1.34 g/cm³

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