Chemical Properties of Terephthalic acid (CAS 100-21-0)

Terephthalic acid

InChI
InChI=1S/C8H6O4/c9-7(10)5-1-2-6(4-3-5)8(11)12/h1-4H,(H,9,10)(H,11,12)
InChI Key
KKEYFWRCBNTPAC-UHFFFAOYSA-N
Formula
C8H6O4
SMILES
O=C(O)c1ccc(C(=O)O)cc1
Molecular Weight1
166.13
CAS
100-21-0
Other Names
  • 1,4-Dicarboxybenzene
  • 1,4-benzenedicarboxylic acid
  • 1,4-benzenedioic acid
  • Acide terephtalique
  • Benzene, 1,4-dicarboxylic acid
  • Benzene, p-dicarboxylic acid
  • Kyselina tereftalova
  • NSC 36973
  • TA 12
  • TPA
  • Ta-33mp
  • WR 16262
  • p-Benzenedicarboxylic acid
  • p-Carboxybenzoic acid
  • p-Dicarboxybenzene
  • p-Phthalic acid
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Physical Properties

Property Value Unit Source
ω 0.8574 Relay (1.0) Calculated Property
Δcsolid [-3227.96; -3189.30] kJ/mol Show Hide
Δcsolid -3189.30 ± 1.50 kJ/mol NIST
Δcsolid -3189.50 ± 0.42 kJ/mol NIST
Δcsolid -3227.96 kJ/mol NIST
Δf -568.56 kJ/mol Joback Calculated Property
Δfgas -664.85 kJ/mol Relay (1.0) Calculated Property
Δfsolid [-816.30; -816.17] kJ/mol Show Hide
Δfsolid -816.30 ± 1.50 kJ/mol NIST
Δfsolid -816.17 kJ/mol NIST
Δfus 30.41 kJ/mol Joback Calculated Property
Δsub [98.11; 146.60] kJ/mol Show Hide
Δsub 146.60 ± 0.50 kJ/mol NIST
Δsub 98.11 kJ/mol NIST
Δvap 119.15 kJ/mol Relay (1.0) Calculated Property
IE 9.90 ± 0.20 eV NIST
log10WS -2.07 Relay (1.0) Calculated Property
logPoct/wat 1.083 Crippen Calculated Property
McVol 114.700 ml/mol McGowan Calculated Property
Pc 4492.23 kPa Joback Calculated Property
Tboil 555.13 K Relay (1.0) Calculated Property
Tc 840.09 K Relay (1.0) Calculated Property
Tfus 703.10 K Solid-Liquid Equilibria for Benzoic Acid + p-Toluic Acid + Chloroform, Benzoic Acid + p-Toluic Acid + Acetic Acid, and Terephthalic Acid + Isophthalic Acid + N,N-Dimethylformamide
Vc 0.424 m3/kmol Relay (1.0) Calculated Property

Temperature Dependent Properties

Property Value Unit Temperature (K) Source
Cp,gas [288.25; 325.63] J/mol×K [705.32; 943.33] Show Hide
Cp,gas 288.25 J/mol×K 705.32 Joback Calculated Property
Cp,gas 295.93 J/mol×K 744.99 Joback Calculated Property
Cp,gas 302.96 J/mol×K 784.66 Joback Calculated Property
Cp,gas 309.39 J/mol×K 824.33 Joback Calculated Property
Cp,gas 315.28 J/mol×K 863.99 Joback Calculated Property
Cp,gas 320.67 J/mol×K 903.66 Joback Calculated Property
Cp,gas 325.63 J/mol×K 943.33 Joback Calculated Property
Cp,solid 199.60 J/mol×K 323.00 NIST
η [0.0001905; 0.0005844] Pa×s [540.06; 705.32] Show Hide
η 0.0005844 Pa×s 540.06 Joback Calculated Property
η 0.0004633 Pa×s 567.60 Joback Calculated Property
η 0.0003753 Pa×s 595.15 Joback Calculated Property
η 0.0003097 Pa×s 622.69 Joback Calculated Property
η 0.0002598 Pa×s 650.23 Joback Calculated Property
η 0.0002211 Pa×s 677.78 Joback Calculated Property
η 0.0001905 Pa×s 705.32 Joback Calculated Property
ΔsubH [131.00; 142.20] kJ/mol [471.00; 621.50] Show Hide
ΔsubH 142.20 ± 1.50 kJ/mol 471.00 NIST
ΔsubH 139.20 kJ/mol 578.00 NIST
ΔsubH 131.00 kJ/mol 578.00 NIST
ΔsubH 139.30 ± 3.80 kJ/mol 621.50 NIST

Correlations

Property Value Unit Temperature (K) Source
Pvap [2.36; 6322.50] kPa [567.15; 1113.00] KDB Vapor Pressure Data Show Hide
Equationln(Pvp) = A + B/T + C*ln(T) + D*T^2
Coefficient A4.38606e+02
Coefficient B-3.45524e+04
Coefficient C-6.04690e+01
Coefficient D2.04789e-05
Temperature range, min.567.15
Temperature range, max.1113.00
Pvap 2.36 kPa 567.15 Calculated Property
Pvap 8.05 kPa 627.80 Calculated Property
Pvap 19.94 kPa 688.45 Calculated Property
Pvap 41.95 kPa 749.10 Calculated Property
Pvap 83.06 kPa 809.75 Calculated Property
Pvap 166.04 kPa 870.40 Calculated Property
Pvap 351.58 kPa 931.05 Calculated Property
Pvap 815.78 kPa 991.70 Calculated Property
Pvap 2124.96 kPa 1052.35 Calculated Property
Pvap 6322.50 kPa 1113.00 Calculated Property

Similar Compounds

Benzoic acid, 4-cyano-. Benzoic acid. TEREPHTHALALDEHYDIC ACID. 4-Methoxycarbonylbenzoic acid. «alpha»,«alpha»,«alpha»-trifluoro-p-toluic acid. Benzoic acid, 4-methyl-. Terephthalic acid, disodium salt. Benzoic acid, 4-iodo-. Benzoic acid, 4-chloro-. p-Bromobenzoic acid. Benzoic acid, 4-fluoro-. 1,3-Benzenedicarboxylic acid. poly(ethylene terephthalate). 1,4-Benzenedicarboxylic acid, dimethyl ester. benzoate anion.

Find more compounds similar to Terephthalic acid.

Mixtures

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Sources

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