2,6-NAPHTHALENEDIOL (2,6-DIHYDROXYNAPHTHALENE)

2,6-NAPHTHALENEDIOL

PRODUCT IDENTIFICATION

CAS NO.

581-43-1

2,6-NAPHTHALENEDIOL

EINECS NO. 209-465-6

FORMULA C₁₀H₆(OH)₂

MOL WT. 160.18

H.S. CODE

TOXICITY

SYNONYMS 2,6-Dihydroxynaphthalene; 2,6-DON; Naphthalene-2,6-diol;

DERIVATION

CLASSIFICATION

NAPHTHALENE / DIOLS /

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE off-white to grey powder

MELTING POINT 223 - 225 C (Decomposes)

BOILING POINT

SPECIFIC GRAVITY

SOLUBILITY IN WATER slightly soluble

AUTOIGNITION

VAPOR DENSITY

NFPA RATINGS

REFRACTIVE INDEX

FLASH POINT

STABILITY Stable under ordinary conditions.

APPLICATIONS

Dihydroxynaphthalenes are compounds which two hydroxyl groups are substituted to naphthalene ring system. There are positional isomers differing by the location of the hydroxyl group. The different positions provide various chemical structures which offer important roles to each characteristics. They are used directly in making several dyes and are converted into numerous corresponding amines, esters, ethers and carboxylic derivatives as well as into numerous sulfo- and nitro-group substituted (mono-, di- and tri) compounds. They find extensive applications in making dyes, pigments, fluorescent whiteners, tanning agents, antioxidants, and antiseptics. Dihydroxynaphthalene structure is found as a ligand in transition-metal catalysts particularly in the form of binaphthalenediol which is composed of two naphthalenediol rings connected at one carbon site on each ring.

SALES SPECIFICATION

APPEARANCE

grey to brown powder

CONTENT

95.0% min

INSOLUBLES 0.3% max

TRANSPORTATION

PACKING

HAZARD CLASS

UN NO.

OTHER INFORMATION

Hazard Symbols: XI, Risk Phrases: 36/37/38 Safety Phrases: 26-39-61

PRICE INFORMATION