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8.20809

Sigma-Aldrich

1-Methylnaphthalene

for synthesis

Synonym(s):

1-Methylnaphthalene

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About This Item

Empirical Formula (Hill Notation):
C11H10
CAS Number:
90-12-0
Molecular Weight:
142.20
MDL number:
MFCD00004034
UNSPSC Code:
12352005
EC Index Number:
201-966-8

vapor pressure

2 hPa ( 25 °C)

Quality Level

200

assay

≥94.0% (GC)

form

liquid

autoignition temp.

529 °C

potency

1840 mg/kg LD50, oral (Rat)

expl. lim.

0.7-6.5 % (v/v)

bp

244-245 °C/1013 mbar

mp

<-30 °C

transition temp

flash point 82 °C

solubility

0.026 g/L

density

1.02 g/cm3 at 20 °C

storage temp.

2-30°C

InChI

1S/C11H10/c1-9-5-4-7-10-6-2-3-8-11(9)10/h2-8H,1H3

InChI key

QPUYECUOLPXSFR-UHFFFAOYSA-N

Application

  • Solvent-assisted microextraction: 1-Methylnaphthalene was used in the development of sponge-like porous manganese(II, III) oxide coatings for solvent-assisted solid-phase microextraction, demonstrating its utility in environmental monitoring and analysis of polycyclic aromatic hydrocarbons (Saraji and Nobakht, 2022).
  • Catalytic applications: As a tar-type compound, 1-Methylnaphthalene was investigated for its degradation under mild conditions using TiO2-supported Pd catalysts, emphasizing its importance in industrial applications for cleaner production technologies (Raad et al., 2021).
  • Advanced oxidation processes: Research involving nano-MoO2 and peroxymonosulfate demonstrated the effective degradation of PAH derivatives, including 1-Methylnaphthalene, underscoring its relevance in water treatment technologies and pollution control (Chen et al., 2021).

Analysis Note

Assay (GC, area%): ≥ 94.0 % (a/a)
Density (d 20 °C/ 4 °C): 1.015 - 1.025
Identity (IR): passes test

signalword

Danger

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 2 - Asp. Tox. 1

Storage Class

10 - Combustible liquids

wgk_germany

WGK 2

flash_point_f

179.6 °F - closed cup

flash_point_c

82 °C - closed cup

Certificates of Analysis (COA)

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