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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

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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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We always think and practice corresponding to the change of circumstance, and grow up. We aim at the achievement of a richer mind and body and the living for Professional China O-Hydroxyaniline - 1,4-Naphthalene Dicarboxylic Acid – Subang , The product will supply to all over the world, such as: French, Angola, Southampton, Each product is carefully made, it will make you satisfied. Our products in the production process have got strictly monitored, because it is only to provide you the best quality, we will feel confident. High production costs but low prices for our long-term cooperation. You can have a variety choices and the value of all types are same reliable. If you have any question, do not hesitate to ask us.
    • Company director has very rich management experience and strict attitude, sales staff are warm and cheerful, technical staff are professional and responsible,so we have no worry about product,a nice manufacturer.
    5 Stars By Atalanta from Zambia - 2017.09.09 10:18
    We are old friends, the company's product quality has been always very good and this time the price is also very cheap.
    5 Stars By Bruno Cabrera from India - 2017.03.08 14:45
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