1,2-dichloro-4-nitrobenzene

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Structural formula
Structural formula of 1,2-dichloro-4-nitrobenzene
General
Surname 1,2-dichloro-4-nitrobenzene
other names
  • 3,4-dichloro-1-nitrobenzene
  • DCNB
Molecular formula C 6 H 3 Cl 2 NO 2
Brief description

yellow crystalline solid with a characteristic odor

External identifiers / databases
CAS number 99-54-7
EC number 202-764-2
ECHA InfoCard 100.002.513
PubChem 7443
Wikidata Q2469366
properties
Molar mass 192.00 g mol −1
Physical state

firmly

density

1.48 g cm −3 (55 ° C)

Melting point

43 ° C

boiling point

255-256 ° C

Vapor pressure

0.02 hPa (25 ° C)

solubility
  • very sparingly soluble in water (151 mg l −1 at 20 ° C)
  • soluble in hot ethanol, benzene, ether and carbon disulfide
safety instructions
GHS labeling of hazardous substances
07 - Warning 09 - Dangerous for the environment

Caution

H and P phrases H: 302-411
P: 262-273
Toxicological data

953 mg kg −1 ( LD 50 ,  rat ,  oral )

As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

1,2-dichloro-4-nitrobenzene is a chemical compound from the group of aromatic nitro compounds .

Extraction and presentation

1,2-dichloro-4-nitrobenzene can be prepared by nitration of 1,2-dichlorobenzene are recovered, but other isomers are formed. Also possible is the preparation by chlorination of 4-chloronitrobenzene .

The annual production volume in 2001 was more than 35,000 tons. This makes it one of the chemical substances that are produced in large quantities (" High Production Volume Chemical ", HPVC) and for which the Organization for Economic Cooperation and Development (OECD) collects data on possible dangers (" Screening Information Dataset ", SIDS).

properties

1,2-dichloro-4-nitrobenzene is a flammable yellow solid with a characteristic odor, which is very sparingly soluble in water. It decomposes when heated above 370 ° C.

use

1,2-dichloro-4-nitrobenzene is contained in high-pressure lubricants and is used in the manufacture of vulcanization accelerators , disinfectants, pesticides and dyes .

See also

Individual evidence

  1. ↑ a b c d e f g h i j Entry for CAS no. 99-54-7 in the GESTIS substance database of the IFA , accessed on December 27, 2016(JavaScript required) .
  2. ↑ a b c d e OECD : Screening Information Dataset (SIDS) Initial Assessment Report (SIAR) for 4-nitrobenzene, 1,2-dichloro- , accessed on November 4, 2014.
  3. ^ Entry on 1,2-dichloro-4-nitrobenzene in the Hazardous Substances Data Bank , accessed on January 3, 2013.