Factory Price Refined naphthalene CAS 91-20-3 No. for sale

CAS No. : 91-20-3
Purity  Technical Naphthalene: 96.5 % Enriched Naphthalene: 98 % Refined Naphthalene: 99.5 % Pure Naphthalene: 99.8 %
GradeIndustrial naphthalene / refined naphthalene
Packaging 270kgs iron drum / 250kg iron drum / 20MT ISO tank
Loading PortQingdao, Shanghai.China
Payment TT/LC
Supplying2000tons/ month


Refined naphthalene is a white volatile crystal with a mild aromatic odor. It is insoluble in water and has a special smell. It is the most important fused ring aromatic hydrocarbon in industry. It can be used to produce phthalic anhydride, dye intermediates, rubber additives and pesticides.
According to different purity, naphthalene can be divided into industrial naphthalene and refined naphthalene. The purity of industrial naphthalene is generally about 96%. After removing impurities and desulfurization, high-purity refined naphthalene can be obtained.

ROSS Chem is a China Refined naphthalene Supplier with high purity and competitive price.

Basic Info

CAS No. : 91-20-3
Molecular Weight: 128.16
Linear Formula : C10H8
EINECS:  202-049-5
Catagory Highly toxic, flammable solid
Purity  Technical Naphthalene: 96.5 %Enriched Naphthalene: 98 %Refined Naphthalene: 99.5 %Pure Naphthalene: 99.8 %
HS Code 29029010


White volatile crystal


Insoluble in water, easy to sublimate, can volatilize with water vapor, has a special smell


Melting point80-82°C (lit.)
Boiling point218 °C (lit.)
Density0.99 g/mL
Vapor density4.4(vs air)
Vapor Pressure0.03 mm Hg ( 25 °C)
Refractive Index1.5821
Storage temp.Store below +30°C.
Solubilitymethanol: soluble50mg/mL,
ColorWhite to almost white
OdorAromatic smell
Explosive limit0.9-5.9%(V)
Water Solubility30 mg/L (25 ºC)
SensitiveMoisture Sensitive
Stability:It is easy to catch fire when exposed to open flames, high heat and oxidants. Powder and air can form explosive mixtures


IndexHigh gradeFirst gradeQualified grade
appearanceWhite powder, flake crystalWhite with reddish or yellowish powdery, flaky crystalsWhite with reddish or yellowish powdery, flaky crystals
Crystallization point℃ ≥79.879.679.3
Non-volatile matter % /0.010.02
Ash  % / 100.0060.008
Pickling colorimetry according to the standard colorimetric pageNo.2No.4/


  • Industrial naphthalene is a basic chemical raw material. It is mainly used to produce water reducing agent and diffusing agent.It is a raw material for the production of synthetic resins, plasticizers, rubber antioxidants, surfactants, synthetic fibers, dyes, medicines and perfumes.
  • Refined naphthalene is widely used as a raw material for the preparation of dyes, resins, solvents, etc. It is also used as an insect repellent.Refined naphthalene can be used in dyes, medicine and other fields. Such as the production of 2-naphthol, 1-naphthol and menaline.

Packing and Loading:

270kgs iron drum / 250kg iron drum / 20MT ISO tank

Safety Information

  • Hazard Class :4.1
  • Hazard Codes : Xn,N,F,T


It is combustible in case of open flame and high heat.
It emits toxic and irritating fumes when burned.
Powder and air can form an explosive mixture. When it reaches a certain concentration, it will explode when it encounters sparks.


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