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Manufacturer for 2,4,6-Trimethylaniline - 2,5-Thiophenedicarboxylic Acid – Subang

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  • Manufacturer for 2,4,6-Trimethylaniline - 2,5-Thiophenedicarboxylic Acid – Subang

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We will devote ourselves to giving our esteemed buyers using the most enthusiastically thoughtful services for Uvitex OB, Oba 71, Fluorescent Whitening Agent EBF, We have more than 20 years experience in this industry, and our sales are well trained. We can give you the most professional suggestions to meet your products' requirements. Any troubles, come to us!
Manufacturer for 2,4,6-Trimethylaniline - 2,5-Thiophenedicarboxylic Acid – Subang Detail:

Structural formula

2

Chemical name:2,5-Thiophenedicarboxylic Acid

Other names: OB acid; ob acid; ob acid; 5-thiophene dicarboxylic acid; 2,5-thiophene diacid; 2,5-dicarboxythiophene; 2,5-thiophene dicarboxylic acid; thiophene-2,5-dicarboxylic acid; 2,5-thiophene dicarboxylic acid; 2,5-thiophene dicarboxylic acid; 2,5-thiophene dicarboxylic acid

Molecular formula: C6H4O4S

molecular weight: 172.16

Numbering System

CAS:  4282-31-9

EINECS : 224-284-2

HS CODE: 2934999090

Physical Data

Appearance: white to light yellowish crystal powder

Purity: ≥98.0%

Density: 1.655 g/cm3

Melting point: >300 °C(lit.)

Boiling point: 444.6ºCat 760 mmHg

Flashing point: 222.7ºC

Solubility: slightly soluble in water

Production Method

Adipic acid and thionyl chloride were mixed in the weight ratio of 1: (6-10) and refluxed for 20-60 h in the presence of pyridine catalyst. The solvent was evaporated and the residue was heated at 140-160 ℃ for 3-7 H. Thiophene-2,5-dicarboxylic acid was obtained by sodium hydroxide treatment, acid precipitation, filtration, decolorization and purification.

Application

The fluorescent whitening agent EBF was prepared by condensation of the product with o-aminophenol. This brightener can be used for nylon, polyester, polypropylene, chloro and triacetic acid fibers. It is a product with excellent properties. It is mainly used in the preparation of fluorescent whitening agent, mainly used in the whitening of synthetic fiber, EVA, PVC, plastic and rubber, and can be used in the whitening of plastic film, compression molding materials, injection molding materials, etc

Storage

Sealed store in ventilated and dry place and keep away from light.

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Manufacturer for 2,4,6-Trimethylaniline - 2,5-Thiophenedicarboxylic Acid – Subang detail pictures

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"Quality 1st, Honesty as base, Sincere company and mutual profit" is our idea, in an effort to create consistently and pursue the excellence for Manufacturer for 2,4,6-Trimethylaniline - 2,5-Thiophenedicarboxylic Acid – Subang , The product will supply to all over the world, such as: Tunisia, Kenya, Pakistan, If you are for any reason unsure which product to select, do not hesitate to contact us and we will be delighted to advise and assist you. This way we will be providing you with all the knowledge needed to make the best choice. Our company strictly follows "Survive by good quality, Develop by keeping good credit. " operation policy. Welcome all the clients old and new to visit our company and talk about the business. We are looking for more and more customers to create the glorious future.
    • The product classification is very detailed that can be very accurate to meet our demand, a professional wholesaler.
    5 Stars By Joseph from Surabaya - 2017.06.22 12:49
    The factory can meet continuously developing economic and market needs, so that their products are widely recognized and trusted, and that's why we chose this company.
    5 Stars By Alva from Sierra Leone - 2017.03.07 13:42
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