91-20-3 96% industrial naphthalene,technical naphthalene,crude naphthnalene,tar camphor

Industrial naphthalene for synthetic resion 1.CAS:91-20-3 2.BV,SGS,CIQ,ISO,COA 3.Free sample 4.Basic chemical raw material

1. 91-20-3 96% industrial naphthalene,technical naphthalene,Crude naphthalene,tar camphor  

1)CAS:91-20-3 2)Industrial naphthalene for synthetic resion3)BV,SGS,CIQ,ISO,COA,MSDS

4)china larger supplier

5)Basic chemical raw material

6)Supply Free sample

 

2.Technical data

Molecular formula:	C10H8
Molecular weight:CAS NO.:	128.1791-20-3
Appearance:	white an light red or yellow powder
crystallization point:	≥ 78.3ºC(excellent grade),≥78.0ºC(first level) ,≥77.5ºC(qualified level)
invalatile substance:	≤ 0.04 (excellent grade), ≤ 0.06 (first level),≤ 0.08 (qualified level)
ash:	≤ 0.01(excellent grade),≤0.01(first level),≤0.02(qualified level)
Melting point:	79-82 ºC
Boiling point:	218 ºC
Density:	0.99
Flash point:	78 ºC
Use:	used in producing phthalic anhydride and additive of concrete

Naphthalene is an organic compound with formula C10H8. 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.[1] 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.

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 10ppm,specific gravity is 1.162,melting point is 80.1,boiling point is 217.9,flashing point is78.89, and spontaneous ignition point is 526. Explosion limit: Dust lower limit is 2.5g/m2, steam 0.9~5.9%. It belongs to the second class flammabe solid. It is mainly made up of naphthalene.

3.Application

It is used to produce β-hydroxynaphthalene, water reducer,phthalic anhydride, refined naphthalene , 

dye intermediate and synthetic resin etc.. 

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91-20-3 96% industrial naphthalene,technical naphthalene,crude naphthnalene,tar camphor