chemical solvent crude Naphtha

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Introduction:

Industrial Naphthalene is white, reddish or yellowish flake crystallization. It has special odour and it is easy to volatilize and sublimate.

The highest allowed density in the air is 10 ppm, specific gravity is 1.162, melting point is 80.1, boiling point is 217.9, flashing point is 78.89, and spontaneous ignition point is 526.

Explosion limit: Dust lower limit is 2.5 g/m2, steam 0.9~5.9%.

It belongs to the second class flammabe solid. It is mainly made up of naphthalene.

 

Application:

 

It is the main raw material of producing phthalic anhydride, dyestuff, resin , α- naphthalene acid,saccharin and so on

 

Industrial Naphthalene
Item	Index
	High-class Product	First-class product	Qualified Product
Appearance	White(reddish or yellowish powder allowed) flake crystallization
Crystallization Point(oc, ≥)	78.3	78.0	77.5
Nonvolatile Matter(%, ≤)	0.04	0.06	0.08
Ash (%, ≤)	0.01	0.01	0.02

chemical solvent crude Naphtha