2021 High quality 1,4-Phthalaldehyde - 1,4-Naphthalene Dicarboxylic Acid – Subang

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2021 High quality 1,4-Phthalaldehyde - 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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We have many excellent staff members good at marketing, QC, and dealing with kinds of troublesome problem in the production process for 2021 High quality 1,4-Phthalaldehyde - 1,4-Naphthalene Dicarboxylic Acid – Subang , The product will supply to all over the world, such as: The Swiss, Rio de Janeiro, Doha, "Good quality, Good service " is always our tenet and credo. We take every effort to control the quality, package, labels etc and our QC will check every detail during producing and before shipment. We are willing to establish long business relationship with those who seek the high quality products and good service. We have set up a wide sales network across European countries, North of America, South of America, Middle East, Africa, East Asia countries.Please contact us now, you will find our professional experience and high quality grades will contribute to your business.
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