Terephthalic acid (data page)

Template:Short description This page provides supplementary chemical data on Terephthalic acid, the organic compound and one of three isomeric phthalic acids, all with formula C₆H₄(CO₂H)₂.

Material Safety Data Sheet

The handling of this chemical may require notable safety precautions, which are set forth on the Material Safety Datasheet (MSDS) for it.SIRI

Structure and properties

Template:Chembox header | Structure and properties
Index of refraction, nD	?
Abbe number	?
Dielectric constant, εr	? ε0 at ? °C
Bond strength	?
Bond length	?
Bond angle	?
Magnetic susceptibility	?

Thermodynamic properties

Template:Chembox header | Phase behavior
Triple point	? K (? °C), ? Pa
Critical point	? K (? °C), ? Pa
Std enthalpy change of fusion, ΔfusHo	? kJ/mol
Std entropy change of fusion, ΔfusSo	? J/(mol·K)
Std enthalpy change of vaporization, ΔvapHo	? kJ/mol
Std entropy change of vaporization, ΔvapSo	? J/(mol·K)
Template:Chembox header | Solid properties
Std enthalpy change of formation, ΔfHosolid	232 kJ/mol
Standard molar entropy, Sosolid	? J/(mol K)
Heat capacity, cp	? J/(mol K)
Template:Chembox header | Liquid properties
Std enthalpy change of formation, ΔfHoliquid	? kJ/mol
Standard molar entropy, Soliquid	? J/(mol K)
Heat capacity, cp	? J/(mol K)
Template:Chembox header | Gas properties
Std enthalpy change of formation, ΔfHogas	? kJ/mol
Standard molar entropy, Sogas	? J/(mol K)
Heat capacity, cp	? J/(mol K)

Spectral data

Template:Chembox header | UV-Vis
λmax	240 nm
Extinction coefficient, ε	?
Template:Chembox header | IR
Major absorption bands	? cm−1
Template:Chembox header | NMR
Proton NMR
Carbon-13 NMR
Other NMR data
Template:Chembox header | MS
Masses of main fragments