Description

Naphthalene CAS NO 91-20-3 is a simple polycyclic aromatic hydrocarbon and a fundamental organic chemical building block. Its unique aromatic structure and high volatility make it a critical intermediate in the synthesis of a wide range of industrial chemicals. This compound is essential for manufacturers in the chemical, agrochemical, and pharmaceutical sectors seeking a reliable and versatile raw material for production and research.

Application

• Chemical Synthesis: Primary raw material for the production of phthalic anhydride, a key precursor for plasticizers (e.g., phthalates) and unsaturated polyester resins.
• Agrochemical Intermediates: Used in the manufacture of carbamate and other insecticides, as well as various fungicides and herbicide intermediates.
• Dye & Pigment Production: Serves as a starting material for the synthesis of azo dyes and other synthetic colorants.
• Surfactant & Dispersant Manufacturing: Alkylated naphthalene sulfonates are produced for use as effective wetting agents and concrete plasticizers.
• Pharmaceutical Intermediates: Employed in the synthesis of certain active pharmaceutical ingredients (APIs) and medicinal compounds.
• Laboratory & Research: Utilized as a solvent, a calibrant in chromatography, and for various organic synthesis reactions in R&D settings.
• Traditional Use: Historically used as a moth repellent and in the production of smokeless fuels.

Basic Information

Product Name	Naphthalene
CAS No.	91-20-3
Molecular Formula	C10H8
Molecular Weight	128.17 g/mol
Synonyms	Naphthalin; Tar Camphor; White Tar; Albocarbon; Naphthalene, crude or refined; Bicyclo[4.4.0]deca-1,3,5,7,9-pentaene; 1,4:5,8-Dimethanonaphthalene
EINECS	202-049-5

Quality Control

Our naphthalene is produced and handled under strict quality management protocols. Each batch undergoes comprehensive analytical testing to ensure it meets the required specifications for purity, melting point, and impurity profiles. Certificates of Analysis (COA) are provided with every shipment, detailing the results of tests such as assay, solidification point, and residue on ignition. We can supply grades suitable for industrial synthesis, with quality systems adaptable to meet specific customer and regulatory requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat, sparks, and open flame. Due to its highly volatile and easily oxidized nature, it is recommended to store under an inert atmosphere for long-term preservation and to minimize sublimation and oxidation. Keep container tightly sealed when not in use. Recommended storage temperature: 15-25°C.

Specification

Item	Specification
Appearance	White crystalline flakes or powder
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Solidification Point	≥ 79.0 °C
Residue on Ignition	≤ 0.05%
Water (KF)	≤ 0.1%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.