Naphthalene Crude

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Naphthalene Crude Specification

Storage Instructions
Store in a cool, dry, and well-ventilated area away from ignition sources

Solubility
Slightly soluble in water; readily soluble in organic solvents

Odour
Characteristic aromatic smell

Appearance
White to light brown crystalline solid

Density
1.14 Gram per cubic centimeter(g/cm3)

Molecular Weight
128.17 g/mol

Chemical Name
Naphthalene Crude

Other Names
Crude Naphthalene, White Tar

Classification
Aromatic Hydrocarbon

CAS No
91-20-3

Type
Technical Grade

Application
Chemical Intermediate, Dye Manufacturing, Synthetic Resin Production

Application Method
Industrial Processing

Raw Material
Coal Tar

Physical State
Solid

Usage
Used in production of phthalic anhydride, insecticides, and dye intermediates

Shelf Life
24 Months

Purity(%)
78%

Best Before
Use within shelf life period

About Naphthalene Crude

Naphthalene C
10H
8. It is the simplest polycyclic aromatic hydrocarbon, and is a white crystalline solid with a characteristic odor that is detectable at concentrations as low as 0.08 ppm by mass.[13] As an aromatic hydrocarbon, naphthalene's structure consists of a fused pair of benzene rings. It is best known as the main ingredient of traditional mothballs.

The crude naphthalene resulting from this process is about 95% naphthalene by weight. The chief impurities are the sulfur-containing aromatic compound benzothiophene (< 2%), indane (0.2%), indene (< 2%), and methylnaphthalene (< 2%). Petroleum-derived naphthalene is usually purer than that derived from coal tar. Where required, crude naphthalene can be further purified by recrystallization from any of a variety of solvents, resulting in 99% naphthalene by weight, referred to as 80^oC (melting point).

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