Dinitrobenzene, ortho

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Flat, prismatic crystals. Dinitrobenzene was discovered in 1841 by Sainte Claire Deville. It is prepared from Benzene treated with Sulfuric acid and fuming Nitric acid.

Chemical structure

Dinitrobenzene, ortho.jpg

Synonyms and Related Terms



  • Toxic by ingestion.
  • Contact cause burns and irritation.
  • Fisher Scientific: MSDS

Physical and Chemical Properties

Soluble in ether, benzene, chloroform, ethyl acetate, and hot alcohol

Composition C6H4(NO2)2
CAS 99-65-0
Melting Point 118 C
Density 1.57 g/ml
Molecular Weight mol. wt. = 168.11
Boiling Point 319 C

Resources and Citations

  • The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry #3273; bp=319 C, mp = 118C, density = 1.57
  • MSDS Sheet Comment: Fisher Scientific; bp = 88-90C, mp= 297 C, density 1.36
  • F. Crace-Calvert, Dyeing and Calico Printing, Palmer & Howe, London, 1876 Comment: p. 356