SPECTRUM

Chemical Fact Sheet

Chemical Abstract Number (CAS #) 528290
CASRN 528-29-0
Synonyms1,2-Dinitrobenzene
Benzene, 1,2-Dinitro-
o-Dinitrobenzene
Molecular FormulaC6H4N2O4

Link to the National Library of Medicine's Hazardous Substances
Database for more details on this compound.

Use USED FOR THE SYNTHESIS OF DYESTUFFS, DYESTUFF INTERMEDIATES, EXPLOSIVES, AND CELLULOID PRODUCTION. 1,2-Dinitrobenzene is used in organic synthesis and as a camphor substitute in cellulose nitrate. /Dinitrobenzene 97% of nitrobenzene is used to reduce aniline, which has wide application in the manufacture of dyes, & medicines. Nitrobenzenes
Apparent Color COLORLESS OR YELLOW CRYSTALS, NEEDLES OR PLATES; NEEDLES FROM BENZENE, PLATES FROM ALC; WHITE CRYSTALS; Pale yellow solid
Boiling Point 319 DEG C
Melting Point 118 DEG C
Molecular Weight 168.12
Density 1.565 g/ml @ 17 DEG C
Sensitivity Data Eyes are irritated by liquid. 1,3-Dinitrobenzene
Environmental Impact Release of 1,2-dinitrobenzene may result from its use as an intermediate in organic syntheses and in the production of dyes. Release of 1,2-dinitrobenzene to soil is expected to result in adsorption to clay but adsorption to other soils is expected to be weak and from the latter leaching to groundwater may occur. Volatilization from soil surfaces may occur but is expected to be slow. Reduction to aromatic amines may occur under anaerobic conditions. Release of 1,2-dinitrobenzene to water may result in biodegradation and slow volatilization from the water surface. Direct photolysis may occur. Bioconcentration, and hydrolysis are not expected to be significant. Release of 1,2-dinitrobenzene to the atmosphere is expected to result in the reaction of 1,2-dinitrobenzene with photochemically generated hydroxyl radicals with an estimated half-life of 14.15 hr. Direct photolysis may also occur.
Environmental Fate TERRESTRIAL FATE: 1,2-Dinitrobenzene is expected to adsorb strongly to clay but only weakly to other soils from which 1,2-dinitrobenzene may leach to groundwater. Biodegradation may be significant. Reduction to aromatic amines may occur under anaerobic conditions. Volatilization from the soil surface may occur but is expected to be slow. AQUATIC FATE: 1,2-Dinitrobenzene may biodegrade in water and volatilization may occur, but is expected to be slow. Direct photolysis may occur based on the absorption of light of greater than 290 nm. Bioconcentration and hydrolysis are not expected to be significant. ATMOSPHERIC FATE: The half-life for the reaction of vapor phase 1,2-dinitrobenzene with photochemically generated hydroxyl radicals in the atmosphere was estimated to be 14.15 hr . Direct photolysis may occur based on the absorption of light of greater than 290 nm.

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