8.00762

Terephthalic acid

for synthesis

• Synonym(s): Terephthalic acid, 1,4-Benzenedicarboxylic acid, p-Phthalic acid
• Linear Formula: C₆H₄-1,4-(COOH)₂
• CAS Number: 100-21-0
• Molecular Weight: 166.13
• MDL number: MFCD00002558
• UNSPSC Code: 12352106
• EC Index Number: 202-830-0

Properties

• Quality Level: 200
• Assay: ≥98% (acidimetric)
• form: crystalline
• autoignition temp.: 496 °C
• potency: >6400 mg/kg LD₅₀, oral (Rat)
• mp: 402 °C (sublimed)
• solubility: 15 mg/L (experimental)
• density: 1.51 g/cm³ at 20 °C
• storage temp.: 2-30°C
• 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

Description

Application

• Biotransformation of p-xylene into terephthalic acid by engineered Escherichia coli: This study explores an alternative production method for terephthalic acid (TPA) that could be less energy-intensive and safer than traditional methods. It reports the successful bioconversion of p-xylene into TPA using genetically engineered E. coli, highlighting a potential sustainable approach to TPA production (Luo & Lee, 2017).


• Synthesis and verification of biobased terephthalic acid from furfural: This research presents a novel synthetic pathway for producing TPA from biomass-derived furfural. It represents a significant step towards sustainable chemical production, providing a greener alternative to petrochemical routes (Tachibana, Kimura & Kasuya, 2015).


• Studies on the solubility of terephthalic acid in ionic liquids: Focused on identifying better solvents for TPA, this study investigates the solubility of TPA in various ionic liquids. The findings could lead to improved processing techniques for TPA in industrial applications (Matuszek et al., 2019).


• Engineering terephthalic acid product from recycling of PET bottles: This study explores the depolymerization of PET into TPA and ethylene glycol, highlighting a sustainable approach to recycle PET waste and reduce reliance on petrochemicals (Lee, Chiu & Lee, 2021).


• Biobased terephthalic acid technologies - a literature review: Reviews various biobased approaches to produce TPA, focusing on the potential of renewable feedstocks to replace traditional petrochemical routes. This comprehensive review discusses different biotechnological and chemical methods to synthesize TPA from bio-based sources (Collias et al., 2014).

Analysis Note

Assay (acidimetric): ≥ 98.0 %
Identity (IR): passes test

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable