Naphthalene, 99+%, Thermo Scientific Chemicals

Description

Naphthalene is formerly important in dyestuff manufacture. It acts as a precursor to phthalic anhydride. Naphthalene is used in the manufacturing of phthalic anhydride, naphthalene sulfonic acids and hydrogenated naphthalenes such as 1,2,3,4-tetrahydronaphthalene, which is used as a precursor for various dyestuffs, pigments, rubber processing chemicals and in pharmaceuticals. Its molten form is used as solvent replacing the high- boiling solvents like dichlorobenzene, nitrobenzene and durene. It is involved as reaction medium for in the Diels-Alder reaction between C₆₀ with anthracene.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
Naphthalene is formerly important in dyestuff manufacture. It acts as a precursor to phthalic anhydride. Naphthalene is used in the manufacturing of phthalic anhydride, naphthalene sulfonic acids and hydrogenated naphthalenes such as 1,2,3,4-tetrahydronaphthalene, which is used as a precursor for various dyestuffs, pigments, rubber processing chemicals and in pharmaceuticals. Its molten form is used as solvent replacing the high- boiling solvents like dichlorobenzene, nitrobenzene and durene. It is involved as reaction medium for in the Diels-Alder reaction between C₆₀ with anthracene.

Solubility
Soluble in benzene, toluene, chloroform, carbon disulfide, ether. Insoluble in water.

Notes
Incompatible with strong oxidizing agents.

Specifications

Chemical Identifiers

• CAS: 91-20-3
• Molecular Formula: C10H8
• Molecular Weight (g/mol): 128.17
• MDL Number: MFCD00001742
• InChI Key: UFWIBTONFRDIAS-UHFFFAOYSA-N
• Synonym: naphthalin, naphthene, camphor tar, tar camphor, white tar, albocarbon, naphthaline, moth flakes, moth balls, naphtalene
• PubChem CID: 931
• ChEBI: CHEBI:16482
• IUPAC Name: naphthalene
• SMILES: C1=CC2=CC=CC=C2C=C1

• Melting Point: 80°C to 82°C
• Density: 0.963
• Boiling Point: 218°C
• Flash Point: 78°C (172°F)
• Odor: Aromatic
• Refractive Index: 1.5821
• Quantity: 250 g
• UN Number: UN1334
• Beilstein: 1421310
• Merck Index: 14,6370
• Solubility Information: Soluble in benzene,toluene,chloroform,carbon disulfide,ether. Insoluble in water.
• Formula Weight: 128.17
• Percent Purity: ≥99%
• Chemical Name or Material: Naphthalene

Safety and Handling

Hazard Category	H228-H302-H350
Hazard Statement	GHS H Statement H228-H351-H302 Flammable solid. Suspected of causing cancer. Harmful if swallowed.
Precautionary Statement	P201-P202-P210-P240-P241-P260-P264b-P270-P271-P281-P301+P312-P304+P340-P308+P313-P330-P370+P378q-P501c
DOTInformation	Transport Hazard Class: 4.1; Packing Group: III; Proper Shipping Name: NAPHTHALENE, REFINED
EINECSNumber	202-049-5
RTECSNumber	QJ0525000
TSCA	Yes
Recommended Storage	Ambient temperatures

SDS

RUO – Research Use Only