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Terephthaloyl chloride (TCL, 1,4-benzenedicarbonyl chloride) is the acid chloride of terephthalic acid and is one of two monomers used to make Kevlar, the other being p-phenylenediamine, which is also used in some hair sprays. Its CAS reference number is 100-20-9 and its chemical formula is C8H4Cl2O2.
Additional recommended knowledge
TCL is used as a key component in performance polymers and aramid fibers, where it imparts flame resistance, chemical resistance, temperature stability, light weight, and very high strength. TCL is also an effective water scavenger, used to stabilize isocyanates and urethane prepolymers.
TCL is a clear, water-white liquid above its freezing point and a white crystalline solid at room temperature, soluble in organic solvents. Its melting point is 81.5-83 °C, its boiling point is 265 °C. It is corrosive.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Terephthaloyl_chloride". A list of authors is available in Wikipedia.