185361
Terephthalic acid
98%
Synonym(s):
Benzene-1,4-dicarboxylic acid
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All Photos(5)
About This Item
Linear Formula:
C6H4-1,4-(CO2H)2
CAS Number:
Molecular Weight:
166.13
Beilstein:
1909333
EC Number:
MDL number:
UNSPSC Code:
12162002
eCl@ss:
39024105
PubChem Substance ID:
NACRES:
NA.23
Recommended Products
vapor pressure
<0.01 mmHg ( 20 °C)
Assay
98%
form
powder
autoignition temp.
925 °F
greener alternative product characteristics
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mp
>300 °C (lit.)
solubility
water: ~0.017 g/L at 25 °C
density
1.58 g/cm3 at 25 °C
greener alternative category
SMILES string
OC(=O)c1ccc(cc1)C(O)=O
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
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General description
Terephthalic acid belongs to the class of monomers known as aromatic dicarboxylic acids. It is primarily used as a key monomer in the production of a high-performance polymer known as polyethylene terephthalate (PET). It is also used to prepare other polymers such as polybutylene terephthalate (PBT), polymer blends, and alloys. Terephthalic acid-based polymers are widely used in various industries including, packaging, textile fibers, polyester resins, polyurethane coatings, polyurethane foams, protective coatings, electrical components, and automotive applications due to their excellent properties such as high thermal stability, chemical resistance, lightweight, transparency, high strength, and durability. In the medical industry, terephthalic acid-based polymers may be used in the production of medical devices and equipment such as surgical sutures, tissue engineering scaffolds, and vascular grafts due to their biocompatibility, chemical resistance, and ease of processing.
We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product has been enhanced for energy efficiency. Find details here.
We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product has been enhanced for energy efficiency. Find details here.
Application
Terephthalic acid can be used:
- As a monomer in the synthesis of poly(butylene terephthalate) (PBT), a type of polyester, that is used in various fields including Automotive components, textile Industry, packaging materials, electrical and electronic components.
- As an organic ligand in the synthesis of the cobalt(II) metal–organic framework (MOFs), which finds applications in electrochemical energy storage, catalysis, optoelectronics, and water treatment.
- Terephthalic acid (TPA) can be synthesized from bio-based materials for a variety of applications, which include the production of polyester fiber, non-fiber field, PET bottles, synthetic perfumes and medicines.
- Terephthalic acid is used as a linker molecule in the preparation of metal-organic frameworks (MOFs).
Storage Class Code
11 - Combustible Solids
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
Certificates of Analysis (COA)
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