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8.20315

Sigma-Aldrich

1-Chloronaphthalene

for synthesis

Synonym(s):

1-Chloronaphthalene, α-Naphthyl chloride

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About This Item

Empirical Formula (Hill Notation):
C10H7Cl
CAS Number:
Molecular Weight:
162.62
MDL number:
UNSPSC Code:
12352101
EC Index Number:
201-967-3

vapor pressure

0.05 hPa ( 20 °C)

Quality Level

assay

85.0-88.0% (GC)

form

liquid

autoignition temp.

>500 °C

potency

1540 mg/kg LD50, oral (Rat)
>2000 mg/kg LD50, skin (Rat)

refractive index

n20/589 1.6332

pH

7 (20 °C in H2O, undiluted)

bp

259 °C/1013 hPa

mp

-6--2.5 °C

transition temp

flash point 115 °C

density

1.19 g/cm3 at 20 °C

storage temp.

2-30°C

InChI

1S/C10H7Cl/c11-10-7-3-5-8-4-1-2-6-9(8)10/h1-7H

InChI key

JTPNRXUCIXHOKM-UHFFFAOYSA-N

Application

  • Enhancement of polymer solar cells: 1-Chloronaphthalene was used as a solid additive in high-efficiency polymer solar cells developed with a benzo-difuran-based donor polymer, improving device performance and stability (Chen et al., 2023).
  • Study of charge transfer complexes: The electronic and vibrational properties of tetracyanoethylene-chloronaphthalene charge transfer complex in solution were explored using TD-DFT and ab initio molecular dynamics, providing insights into molecular interactions and stability (Coppola et al., 2022).
  • Efficiency boost in solar cells: 1-Chloronaphthalene was employed as a nontoxic, halogen-free additive in polymer solar cells, significantly boosting their efficiency and highlighting its potential as an environmentally friendly material for solar energy applications (Liu et al., 2021).
  • Development of nonhalogenated-solvent solar cells: Medium-band-gap small-molecule acceptors based on a 6,12-dihydro-diindolo[1,2-b:1,2-e]pyrazine unit were used in nonhalogenated-solvent-processed polymer solar cells, where 1-Chloronaphthalene acted as a solvent, promoting higher device efficiencies and reduced environmental impact (Chen et al., 2019).

Analysis Note

Assay (GC, area%): 85.0 - 88.0 % (a/a)
Density (d 20 °C/ 4 °C): 1.188 - 1.195
2-Chloronaphthalene (GC, area%): 12.0 - 15.0 % (a/a)
Identity (IR): passes test

pictograms

Exclamation markEnvironment

signalword

Warning

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Acute 1 - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

10 - Combustible liquids

wgk_germany

WGK 2

flash_point_f

249.8 °F - closed cup

flash_point_c

121 °C - closed cup


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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