NAPHTHALENE

Naphthalene is the abundant component of coal tar, the liquid residue formed during the distillation of coal into coke. Coke is distilled from coal to remove most of the impurities, leaving a carbonaceous solid which produces little or no smoke when burnt and is used as a smokeless fuel. Its boiling point is 217.97 °C, melting point is 78.2 °C and its flash point is 80 °C.

Send Requirement :


Request a Quote  **Free

No registration, no credit cards required.


Top Brands and Manufacturers

Show All Hide

Manufacturer and Suppliers for NAPHTHALENE


Detailed Description for NAPHTHALENE

 

 

 

Naphthalene is a volatile, organic compound with the chemical formula C10H8. It is a polycyclic aromatic hydrocarbon with white crystalline solid that consists of an odor, which is noticeable at a chemical concentration that is as low as 0.08 ppm by mass. As a sweet-smelling hydrocarbon, this chemical structure is made of the fused pair of benzene rings. The Naphthalene is a key ingredient of traditional mothballs.

 

Production

 

The naphthalene chemical is a resultant of coal tar. Since its inception and until the 1990s, the considerable amounts of this chemical were also produced through heavy petroleum fractions at the time of petroleum refining. However, in the recent times, the petroleum-derived naphthalene denotes only a minor component of naphthalene production.

 

 

Properties

Chemical formula

C10H8

Molar mass

128.17 g·mol−1

Appearance

White solid crystals/ flakes

Odor

Strong odor of coal tar

Density

1.145 g/cm3 (15.5 °C)
1.0253 g/cm3 (20 °C)

Melting point

78.2 °C (172.8 °F; 351.3 K)
80.26 °C (176.47 °F; 353.41 K)
at 760 mmHg

Boiling point

217.97 °C (424.35 °F; 491.12 K)
at 760 mmHg

Solubility in water

19 mg/L (10 °C)

Solubility

Soluble in alcohols, liquidammonia, carboxylic acids, C6H6, SO2CCl4CS2, toluene, aniline

Solubility in ethanol

5 g/100 g (0 °C)

Solubility in acetic acid

6.8 g/100 g (6.75 °C)
13.1 g/100 g (21.5 °C)
31.1 g/100 g (42.5 °C)
111 g/100 g (60 °C)[5]

Solubility in chloroform

19.5 g/100 g (0 °C)

Solubility in hexane

5.5 g/100 g (0 °C)

Solubility in butyric acid

13.6 g/100 g (6.75 °C)

log P

3.34

Vapor pressure

8.64 Pa (20 °C)

Henry's law
constant (kH)

0.42438 L·atm/mol

Thermal conductivity

98 kPa:
0.1219 W/m·K (372.22 K)

Refractive index(nD)

1.5898

Viscosity

0.964 cP (80 °C)

 

Applications

 

 

Naphthalene is used primarily as a predecessor to other chemicals. Predominantly, this chemical is used in the industrial production of phthalic anhydride, although this chemical is made from the o-xylene. Naphtelene is a main ingredient of azo dyes. It is also used in the production of an insecticide-1-naphthyl-N-methylcarbamate. Besides, this chemical is used in production of other useful agrichemicals including naphthoxyacetic acids.


Question And Answer

Get Prices

Answers to your queries


Buying Tip- See what like buyers had to say!



SUBMIT
Seema S

Precautions when using Naphthalene Posted on 8/26/2016

• Keep away from open flames, heat, hot surfaces, sparks • Kept area should be No Smoking Zone • Use personal protective equipment when required • If it get into eyes than rinse cautiously with water for several minutes and also remove contact lenses if you wears and continue rinsing. Consult to eye doctor it recommended

Handy Is this buying tip helpful? Handy it!