Terephthalaldehyde CAS# 623-27-8
Terephthalaldehyde, Promotion Season Now in Store and Free Sample for Testing with Factory Price
- Appearance: White powder
- Assay: 99. 0%min
- Packaging: 25kg/bag
- Sample: Available
Terephthalaldehyde: The Complete Guide
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Quality Control of Terephthalaldehyde
Quality Control & MSDS
Packing of Terephthalaldehyde
Description of Terephthalaldehyde
Terephthalaldehyde is an important fine chemical material downstream of paraxylene. Because of two active aldehyde groups in its molecular structure, it can be self-polymerized or copolymerized with other monomers to form polymeric materials, which are mainly used in the synthesis of fluorescent materials, catalyst carriers, and other polymeric products. Terephthalaldehyde is traditionally produced by chlorination of paraxylene, followed by hydrolysis in the presence of nitric acid or metal oxides.
Basic Info of Terephthalaldehyde
Appearance & Physical State
3 g/L (50 ºC)
Stable under normal temperatures and pressures.
Store in a cool, dry place. Keep container closed when not in use.
What is Terephthalaldehyde?
- With the progress of science and technology and the development of society, chemical products have invariably permeated our daily lives, in medicine, food, cosmetics, electronics, industry, and other areas, becoming an essential part of our lives. One such product is Terephthalaldehyde which has developed particularly rapidly in recent years. Do you know about Terephthalaldehyde?
- The official answer: Terephthalaldehyde is an important fine chemical material downstream of paraxylene. Because of two active aldehyde groups in its molecular structure, it can be self-polymerized or copolymerized with other monomers to form polymeric materials, which are mainly used in the synthesis of fluorescent materials, catalyst carriers, and other polymeric products. Terephthalaldehyde is traditionally produced by chlorination of paraxylene, followed by hydrolysis in the presence of nitric acid or metal oxides.
What’s the application of Terephthalaldehyde?
- It is mainly used in the production of whitening agents, resins, plastics, pesticides, etc.; bromocyclopentane is mainly produced for the synthesis of a variety of organic substances; solid iodophor disinfectant is a new type of disinfectant made of surfactant as a carrier and complexed with iodine elements, with broad-spectrum, high efficiency, strong bactericidal power, strong and stable sex, safe to use, suitable for hospital pre-surgical skin disinfection, oral cavity, intestinal tract, urethra, cervical mucosa Disinfection of skin, oral cavity, intestine, urinary tract and cervical mucosa before surgery. Preparation method:
- Using p-xylene, carbon tetrachloride, azobisisobutyronitrile, and chlorine gas as raw materials and solvents, benzyl chloride was obtained, which was later oxidized under the catalytic action of nitric acid and zinc nitrate. The addition of zinc nitrate improved the yield of p-terephthalaldehyde to over 89% and the product purity was higher than 99.0%. Chlorinated hydrolysis usually directly uses highly toxic chlorine gas, which is very unfriendly to the environment. To avoid the direct use of chlorine gas, N-fluorosis(benzenesulfonamide) and sodium chloride were firstly used to react with p-xylene for the highly selective synthesis of p-dichlorobenzene, followed by 98% concentrated sulfuric acid and manganese dioxide catalysis to obtain the crude terephthalaldehyde, and finally, sodium hydroxide was used to neutralize the oxidation mother liquor, and the finished terephthalaldehyde was obtained by recrystallization in ethanol-water mixture with a 77% weight yield of terephthalaldehyde.
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