Quick Search

PRODUCTS

TEREPHTALIC ACID

CAS NUMBER: 100-21-0

EC NUMBER: 202-830-0

MOLECULAR FORMULA: C6H4-1,4-(CO2H)2

MOLECULAR WEIGHT: 166.13

 


Terephthalic acid is an organic compound with formula C6H4(CO2H)2. 
Terephthalic acid is a commodity chemical, used principally as a precursor to the polyester Terephthalic acid, used to make clothing and plastic bottles. 

Several million tonnes are produced annually.
The common name of Terephthalic acid is derived from the turpentine-producing tree

Terephthalic acid is a benzenedicarboxylic acid carrying carboxy groups.
One of three possible isomers of benzenedicarboxylic acid, the others being phthalic and isophthalic acids. 

Terephthalic acid is a conjugate acid of a terephthalate(1-).
Terephthalic acid is a white powder.

Terephthalic acid, a raw material for polyethylene terephthalate (PET) production, is one of the most important chemicals in petrochemical industry. 
Terephthalic acid is used for the production of polyesters with aliphatic diols as the comonomer. 

The polymer is a high-melting, crystalline material forming very strong fibers. 
Terephthalic acid is the largest volume synthetic fiber and the production of terephthalic acid is the largest scale operated process based on a homogeneous catalyst. 

More recently the packaging applications have also gained importance. 
Terephthalic acid is produced from p-xylene by oxidation with oxygen. 

Terephthalic acid is used to manufacture polyester coatings resins for use in the formulation of general metal, appliance, automotive, industrial maintenance, and coil coatings. 
The primary application for Terephthalic acid is in combination Glycol in polyester powder coating resins. 

Terephthalic acid has also been used in unsaturated polyesters for fiberglass-reinforced plastics applications.
The aromatic ring of PTA imparts excellent hardness and corrosion and stain resistance to coatings resins and unsaturated polyesters. 

Terephthalic acid has moderate solubility in molten glycols which can increase synthesis times, and it imparts moderate solubility to resins.
Terephthalic acid is one isomer of the three phthalic acids. 

Terephthalic acid finds important use as a commodity chemical, principally as a starting compound for the manufacture of polyester (specifically PET), used in clothing and to make plastic bottles. 
Terephthalic acid is also known as 1,4-benzenedicarboxylic acid, and it has the chemical formula C6H4(COOH)2. 

Terephthalic acid has recently become an important component in the development of hybrid framework materials.
Terephthalic acid is almost insoluble in water, alcohol and ether; it sublimes rather than melting when heated. 

This insolubility makes Terephthalic acid relatively awkward to work with, and up until around 1970 much crude terephthalic acid was converted to the dimethyl ester for purification.
Terephthalic acid has been used mainly as a raw material of polyester fiber but lately Terephthalic acid has been exploited for various uses such as non-fiber field like PET-bottle, PET-film, environmental-friendly plasticizers and engineering plastics.

Terephthalic acid is the organic compound with formula C6H4(COOH)2. 
This colourless solid is a commodity chemical, used principally as a precursor to the polyester Terephthalic acid, used to make clothing and plastic bottles. 

Several million tones are produced annually. 
Terephthalic acid is one of three isomeric phthalic acids.
Terephthalic acid is a benzenepolycarboxylic acid with potential anti-hemorrhagic properties.

 

 


USES OF TEREPHTALIC ACID:


-High Purity 99.9% purified Terephthalic acid (PTA) powder price CAS 100-21-0 with best price!

-Used for chromatographic analysis reagent

-The fatty acid can be separated by adding polyethylene glycol 200.

-Used for the production of organic synthesis, medicine, dyes and other products.

-Mainly used in the manufacture of polyester resin, synthetic fiber and plasticizer, etc.

-Determination of the residual alkalinity of wool, gas chromatographic cleaning agent.

-Terephthalic acid is an important raw material for making film, plastic products, insulating paint and engineering plastics.

-Polyester fibers based on PTA provide easy fabric care, both alone and in blends with natural and other synthetic fibers. 

-Polyester films are used widely in audio and video recording tapes, data storage tapes, photographic films, labels and other sheet material requiring both dimensional stability and toughness.

-Terephthalic acid is used in paint as a carrier.

-Terephthalic acid is used as a raw material to make terephthalate plasticizers such as dioctyl terephthalate and dibutyl terephthalate.

-Terephthalic acid is used in the pharmaceutical industry as a raw material for certain drugs.

-In addition to these end uses, Terephthalic acid based polyesters and polyamides are also used in hot melt adhesives.

-Terephthalic acid is an important raw material for lower molecular weight saturated polyesters for powder and water-soluble coatings.

-In the research laboratory, terephthalic acid has been popularized as a component for the synthesis of metal-organic frameworks.

-The analgesic drug oxycodone occasionally comes as a terephthalate salt; however, the more usual salt of oxycodone is the hydrochloride. 

-Pharmacologically, one milligram of terephthalas oxycodonae is equivalent to 1.13 mg of hydrochloridum oxycodonae.

-Terephthalic acid is used as a filler in some military smoke grenades, most notably the American M83 smoke grenade and M90 vehicle-employed smoke grenade, producing a thick white smoke that acts as an obscurant in the visual and near-infrared spectrum when burned.

 

 


APPLICATIONS OF TEREPHTALIC ACID:

Terephthalic acid 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.

Virtually the entire world's supply of terephthalic acid and dimethyl terephthalate are consumed as precursors to polyethylene terephthalate (PET). 
World production in 1970 was around 1.75 million tonnes.

By 2006, global purified terephthalic acid (PTA) demand had exceeded 30 million tonnes. 
A smaller, but nevertheless significant, demand for terephthalic acid exists in the production of polybutylene terephthalate and several other engineering polymers.

 

 

-Adhesives/sealants-B&C

-Architectural coatings

-Auto OEM

-Automotive

-Coil coatings

-General industrial coatings

-Graphic arts

-Intermediates

-Paints & coatings

-Protective coatings

-Water packaging

-Wind energy

 

 

 

PROPERTIES OF TEREPHTALIC ACID:

-vapor pressure: <0.01 mmHg ( 20 °C)

-Quality Level: 100

-assay: 98%

-form: powder

-autoignition temperature: 925 °F

-greener alternative product characteristics: Design for Energy Efficiency

-Melting point: >300 °C (lit.)

-solubility: water: ~0.017 g/L at 25 °C

-density: 1.58 g/cm3 at 25 °C

 

 

PHYSICAL AND CHEMICAL PROPERTIES OF TEREPHTALIC ACID:


-Min. Purity Spec: >99% (GC)

-Physical Form: White crystalline powder

-Melting Point: 300°C

-Density: 1.58 g/cm3 at 25 °C (77 °F)

-Long-Term Storage: Store at room temperature

 

 


CHEMICAL PROPERTIES OF TEREPHTALIC ACID:

Terephthalic acid is poorly soluble in water and alcohols, consequently up until around 1970 most crude terephthalic acid was converted to the dimethyl ester for purification. 
Terephthalic acid sublimates when heated.

 

 


CHARACTERISTICS OF TEREPHTALIC ACID:

-Excellent weathering

-Good chemical and stain resistance

-Good hardness/flexibility balance

-Ideal glass transition temperature range

-Outstanding powder flow and fluidization characteristics

 

 

SOLUBILITY OF TEREPHTALIC ACID:

Terephthalic acid is poorly soluble in water and alcohols; consequently, until about 1970 terephthalic acid was purified as its dimethyl ester. 
Terephthalic acid sublimes when heated.

 

 

SYNONYM:

100-21-0
p-Phthalic acid
1,4-Benzenedicarboxylic acid
benzene-1,4-dicarboxylic acid
p-Benzenedicarboxylic acid
p-Carboxybenzoic acid
Acide terephtalique
1,4-dicarboxybenzene
Kyselina tereftalova
WR 16262
TA-33MP
NSC 36973
HSDB 834
p-Phthalate
TA 12
UNII-6S7NKZ40BQ

 

 

  • Share !
E-NEWSLETTER