2-Naphtol : 2-Hydroxynaphthalene : 2-Naphthalenol : beta-Naphthol : Naphth-2-ol - 1000g

2-Naphthol
Other Names: β-Naphthol, 2-Hydroxynaphthalene

CAS Number: 135-19-3
Sum Formula: C₁₀H₈O
Molar Mass: 144.17 g/mol
Appearance: White to light beige crystalline solid (may darken upon exposure to air or light)

2-Naphthol is an aromatic organic compound and one of two isomeric naphthols. It consists of a hydroxyl group bonded to the second carbon of a naphthalene ring. It is used as an intermediate in dye and pigment synthesis, organic chemistry, and material science applications.

Chemical and Physical Properties

Density: ~1.28 g/cm³
Melting Point: 121–123°C
Boiling Point: 285°C
Solubility in Water: Slightly soluble (~0.74 g/L at 25°C)
Solubility in Other Solvents: Soluble in ethanol, ether, and benzene
Odor: Faint phenolic odor

Applications

Dye and Pigment Industry: Used in the synthesis of azo dyes and other colorants.

Organic Synthesis: Serves as a precursor and intermediate for various aromatic compounds.

Polymer Chemistry: Involved in the production of resins and stabilizers.

Analytical Chemistry: Used as a reagent for the detection of metal ions and in redox indicator systems.

Safety

Signal Word: Warning

Hazard Statements:
H302: Harmful if swallowed
H315: Causes skin irritation
H319: Causes serious eye irritation
H335: May cause respiratory irritation
H410: Very toxic to aquatic life with long-lasting effects

Precautionary Statements:
P261: Avoid breathing dust or fumes
P264: Wash hands thoroughly after handling
P270: Do not eat, drink, or smoke when using this product
P273: Avoid release to the environment
P280: Wear protective gloves, clothing, and eye protection
P301+P312: IF SWALLOWED: Call a POISON CENTER or doctor if you feel unwell
P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing

First Aid Measures

Eye Contact: Rinse immediately with water for several minutes. Seek medical attention if irritation persists.
Skin Contact: Wash with soap and water. Remove contaminated clothing.
Inhalation: Move to fresh air. Seek medical help if symptoms occur.
Ingestion: Rinse mouth. Do not induce vomiting. Seek medical attention.

Handling and Storage

Storage Conditions: Store in a tightly closed container in a cool, dry, well-ventilated place. Protect from light and air to prevent oxidation.
Handling Precautions: Avoid dust formation and contact with skin, eyes, and clothing. Use appropriate personal protective equipment.