Terephthalic Acid

CAS Number 100-21-0
Molecular Formula C8H6O4
Molecular Weight 166.133 g/mol
InChI Key KKEYFWRCBNTPAC-UHFFFAOYSA-N
LogP 2.00
Synonyms
  • Terephthalic acid
  • Benzene-1,4-dicarboxylic acid
  • 1,4-Benzenedicarboxylic acid
  • 100-21-0
  • TPA
  • 1,4-Benzenedicarboxylic acid
  • 4-09-00-03301
  • 1,4-BENZENEDICARBOXYLIC ACID, PARA-PHTHALIC ACID
  • 1,4-Dicarboxybenzene
  • 4-Carboxybenzoic acid
  • Acide terephtalique
  • acido tereftalico
  • Amoco TA 33
  • NSC 36973
  • para-Phthalic acid
  • p-Benzenedicarboxylic acid
  • p-Carboxybenzoic acid
  • p-Dicarboxybenzene
  • p-Phthalic acid
  • PURIFIED TEREPHTHALIC ACID
  • TEREPHTHALSAEURE
  • Terephthalsaure
  • BRN 1909333
  • EINECS 202-830-0
  • Tephthol
  • Kyselina tereftalova
  • UNII-6S7NKZ40BQ
  • Benzene-p-dicarboxylate
  • Benzene-p-dicarboxylic acid
  • Kyselina terftalova
  • P-Phthelate
  • P-Phthelic acid
  • p-Benzenedicarboxylate
  • p-Phthalate
  • p-Phthalic acid
  • para-benzenedicarboxylic acid
  • 211863-90-0
  • 211863-92-2

Applications:


Separation of Phthalic Acids and Related Impurities

Phthalic acid, phthalic acid isomers, and related products present in the production of phthalic acid were separated on the Primesep D column, based on reversed-phase and in-exchange mechanisms. Neutral, hydrophobic compounds of the phthalic acid production are retained by a reversed-phase mechanism, and phthalic acid and other acidic compounds are retained by a combination of reversed-phase and anion-exchange mechanisms. Resolution and selectivity of this separation can be modified by varying the amount of acetonitrile, buffer concentrations, and buffer pH. This method can be used for monitoring the production cycle of phthalic acid and related impurities.

 



Application Analytes:

4-Carboxybenzaldehyde
Benzoic Acid
Phthalic Acid
Terephthalaldehyde
Terephthalic Acid
p-Tolualdehyde
p-Toluic Acid

HPLC Separation of Isomers of Phthalic Acids

Phthalic and terephthalic acids were separated based on their hydrophobic and acidic properties on the mixed-mode core-shell column. Retention time for these compounds can be adjusted by modifying the mobile phase composition.



Application Analytes:

Phthalic Acid
Terephthalic Acid