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Professional China O-Hydroxyaniline - 1,4-Naphthalene Dicarboxylic Acid – Subang

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Professional China O-Hydroxyaniline - 1,4-Naphthalene Dicarboxylic Acid – Subang Detail:

Structural formula

1

Chemical Name: 1,4-naphthalene dicarboxylic acid

Other names: naphthalene-1,4-dicarboxylic acid, 98 +%; 1,4-naphthalene dicarboxylic acid; naphthalene-1,4-dicarboxylic acid, KCB acid; naphthalene-1,4-dicarboxylic acid, KCB acid; 1,4-naphthalene dicarboxylic acid, 95%; naphthalene-1,4-dicarboxylic acid; 1,4-naphthalene dicarboxylic acid; 1,4-naphthalene dicarboxylic acid

Molecular formula：C12H8O4

molecular weight：216.19

Numbering system:

CAS No.：605-70-9

EINECS: 210-094-7

HS CODE: 29173990

Physical Data

Appearance: Small bar crystal

Purity: ≥98.0%

Boiling point:  490.2±28.0 °C(Predicted)

Density:  1.54 g/cm3

Melting point: 309℃（325℃）。

Solubility: soluble in ethanol, blue fluorescence, insoluble in boiling water.

Application

Used in the production of optical brightener, dye intermediates, etc.

Production Method

1-methyl-4-acetylnaphthalene and potassium dichromate are oxidized for 18h at 200-300 ℃ and about 4MPa; 1,4-dimethylnaphthalene can also be obtained by liquid phase oxidation at 120 ℃ and about 3kpa with cobalt manganese bromide as catalyst.

Storage

Sealed store in a cool and dry place.

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Our primary purpose is to give our shoppers a serious and responsible company relationship, giving personalized attention to all of them for Professional China O-Hydroxyaniline - 1,4-Naphthalene Dicarboxylic Acid – Subang , The product will supply to all over the world, such as: Costa rica, United States, Botswana, On today, we've got customers from all over the world, including USA, Russia, Spain, Italy, Singapore, Malaysia, Thailand, Poland, Iran and Iraq. The mission of our company is to deliver the highest quality products with best price. We've been looking forward to doing business with you!
This manufacturer can keep improving and perfecting products and service, it is in line with the rules of market competition, a competitive company.
5 Stars By Natividad from Monaco - 2017.09.26 12:12
The factory workers have a good team spirit, so we received high quality products fast, in addition, the price is also appropriate, this is a very good and reliable Chinese manufacturers.
5 Stars By Aurora from Belarus - 2018.02.12 14:52
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