Manufacturer for 2,4,6-Trimethylaniline - 1,4-Naphthalene Dicarboxylic Acid – Subang

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Bear "Customer first, High quality first" in mind, we perform closely with our consumers and provide them with efficient and experienced services for Oba 368, Brightening Agent, OPA, In order to expand our international market, we mainly supply our oversea customers Top quality performance products and service.

Manufacturer for 2,4,6-Trimethylaniline - 1,4-Naphthalene Dicarboxylic Acid – Subang Detail:

Structural formula

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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1，4-Phthalaldehyde