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8.20809

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
UNSPSC Code:
12352005
EC Index Number:
201-966-8
NACRES:
NA.22
MDL number:
MFCD00004034
Assay:
≥93.0% (GC)
Form:
liquid
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vapor pressure

2 hPa ( 25 °C)

Quality Segment

200

assay

≥93.0% (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

1.012-1.028 g/cm3 at 20 °C

storage temp.

2-30°C

SMILES string

Cc1c2c(ccc1)cccc2

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

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Danger

Hazard Classifications

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

Storage Class

10 - Combustible liquids

flash_point_f

179.6 °F - closed cup

flash_point_c

82 °C - closed cup

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

Substances Subject to be Indicated Names

ishl_indicated

Substances Subject to be Notified Names

ishl_notified

Class I Designated Chemical Substances

prtr

Group 4: Flammable liquids + Type 3 petroleums + Hazardous rank III + Water insoluble liquid

fsl

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