CAS 100-21-0 White Powder 99% Pta Purified Terephthalic Acid/Pta White Crystals

• Customization: Available
• CAS No.: 100-21-0
• Nutritional Value: Non-nutritional
• Certification: BRC, ISO, FDA, HACCP
• Packaging Material: Plastic
• Storage Method: Normal
• Shelf Life: >12 Months
• Molecular Weight: 210.14
• Other Names: Refined Terephthalic Acid
• Sample: Free
• Appearance: Powder
• Grade Standard: Agriculture Grade
• Boiling Point: 214.32ºC(Rough Estimate)
• Element: Terephthalic Acid
• Transport Package: Alumininum Foli Bags
• Origin: China
• Production Capacity: 150, 000 Mt/ Year

Product Description

Product Description

Being widely used in chemical fibers, light industry, electronics, construction and  all aspects of the civil economy,PTA is one of the important bulk organic raw materials.  At the same time, the application of PTA is concentrated, more than 90% of PTA in the world is used in the production of polyethylene terephthalate (PET). It takes 0.85-0.86ton PTA to produce 1 ton PET and 0.33-0.34 ton of MEG (ethylene glycol). Polyesters include fiber chips, polyester fibers, bottles slices and film sections. In the domestic market, 75% of PTA is used to produce polyester fibers and 20% is used to produce bottle grade polyester, which is mainly used in the packaging of various beverages, especially carbonated beverages; 5% for membrane grade polyester, mainly applied to packaging materials, film and tape.

Product Parameters

Melting point	-20°C
Boiling point	84°C
density	0.95 g/mL at 20 °C
refractive index	n20/D 1.37
Fp	7°C
storage temp.	Store below +30°C.
solubility	Soluble in methanol and ethanol.
form	Powder
color	White
Specific Gravity	0.95
PH	12.8 (7g/l, H2O, 20ºC)
Water Solubility	may decompose
Sensitive	Moisture Sensitive
Hydrolytic Sensitivity	7: reacts slowly with moisture/water

 

 

Items	Unit	Results
Appearance	-----	White dry Free-flowing crystals
DMF color	Platinum Cobalt Color Number	3
Acid number	mg KOH/g	673.6
Ash	mg/kg	1
Total significant metals (Fe,Co,Cr,Mn,Mo,Ni,Ti)	mg/kg	0.2
Iron	mg/kg	0.02
4-Carboxybenzaldehyde	mg/kg	17
Paratoluic acid	mg/kg	118
Moisture	wt%	0.08
△Y	------	1
B*Value	------	0.89
Average Particle Size	μm	136
Particle size distribution,>250μm	%	16
Particle size distribution,<45μm	%	8.2
Conclusion of the tests	Premium Grade

Detailed Photos

 

Application

 

PRODUCT USAGE

Virtually the entire world's supply of terephthalic acid and dimethyl terephthalate are consumed as precursors to polyethylene terephthalate (PET). A smaller, but nevertheless significant, demand for terephthalic acid exists in the production of polybutylene terephthalate and several other engineering polymers.

Other uses

1.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.

2.Terephthalic acid is used in paint as a carrier. 30Terephthalic acid is used as a raw material to make terephthalate plasticizers such as dioctyl terephthalate and dibutyl terephthalate.

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

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

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

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