Naphthalic Anhydride 1,8-Naphthalene Dicarboxylic Anhydride CAS: 81-84-5

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CAS NO.： 81-84-5

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Specification： ≥99%; ≥98%

Documentation：

MSDS

COA

COA2

Lead Time： In Stock

Max Capacity： -

Pallets Packing	20'FCL		40'FCL
Pallets Packing	With	Without	With	Without
25KG/Woven Bag	16 MT	--	--	--

Product Description

Properties

PRODUCT DESCRIPTION

Naphthalic Anhydride

Alias: Naphthalene-1,8-dicarboxylic anhydride; 1,8-naphthallic anhydried

CAS No.: 81-84-5

EINECS No.: 201-380-2

Content: ≥ 99%, ≥ 98%

Molecular formula: C12H6O3

Molecular weight: 198.17

Molecular structure: 结构式

Physicochemical properties

Properties: acicular crystals are precipitated in ethanol, and rhombic crystals are precipitated in acetic acid.

Appearance: light yellow powder

Melting point: 267-269 ℃

Solubility: insoluble in water, ether, benzene, slightly soluble in hot ethanol, soluble in hot acetic acid.

Properties

1,8-Naphthalic anhydride precipitates acicular crystals in ethanol and rhombic crystals in acetic acid, insoluble in water, ether and benzene, slightly soluble in hot ethanol and soluble in hot acetic acid. This product is mainly used as the intermediate of dye, pesticide, medicine and polyester resin. It is an important raw material for the synthesis of perylene dyes, pigments and fluorescent whitening agents.

CAS No.

81-84-5

Formula

C12H6O3

Molecular Mass

198.17400

Exact Mass

198.03200

PSA

43.37000

Logp

2.15040