1-bromonaphthalene

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Structural formula
Structural formula of 1-bromonaphthalene
General
Surname 1-bromonaphthalene
other names
  • α-naphthyl bromide
  • α-bromonaphthalene
  • Monobromonaphthalene
Molecular formula C 10 H 7 Br
Brief description

colorless, oily liquid with a pungent odor

External identifiers / databases
CAS number 90-11-9
EC number 201-965-2
ECHA InfoCard 100,001,787
PubChem 7001
Wikidata Q21050994
properties
Molar mass 207.07 g mol −1
Physical state

liquid

density

1.48 g cm −3 (20 ° C)

Melting point

−2 to −1 ° C

boiling point

133-134 ° C (10 mmHg)

Vapor pressure

0.013 hPa (20 ° C)

solubility
  • almost insoluble in water
  • miscible with alcohol, ether and benzene
Refractive index

1.6576 (20 ° C, 589 nm)

safety instructions
GHS labeling of hazardous substances
07 - Warning

Caution

H and P phrases H: 302-319
P: 305 + 351 + 338
Toxicological data

810 mg kg −1 ( LD 50ratoral )

As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . Refractive index: Na-D line , 20 ° C

1-bromonaphthalene is a chemical compound from the group of naphthalene derivatives and is isomeric to 2-bromonaphthalene .

Extraction and presentation

1-Bromonaphthalene can be obtained by brominating naphthalene at 40 ° C in the presence of carbon tetrachloride .

properties

1-Bromonaphthalene is a colorless, oily liquid with a pungent odor.

use

1-Bromonaphthalene is used in microscopy for embedding samples because of its high refractive index . It is also used to measure the refractive index to determine crystals.

Individual evidence

  1. a b c d e data sheet 1-bromonaphthalene (PDF) from Merck , accessed on August 9, 2015.
  2. a b c d e f Entry on 1-bromonaphthalene. In: Römpp Online . Georg Thieme Verlag, accessed on August 9, 2015.
  3. a b c d e f data sheet 1-bromonaphthalene, 97% from Sigma-Aldrich , accessed on August 9, 2015 ( PDF ).
  4. a b Werner Franke: Testing of paper, cardboard, cellulose and wood pulp Volume 2: Microscopic and photometric methods . Springer-Verlag, 2013, ISBN 978-3-642-51105-9 , pp. 142 ( limited preview in Google Book search).