| Chemical Abstract Number (CAS #) |
528290
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| CASRN |
528-29-0 |
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| Synonyms | 1,2-Dinitrobenzene |
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Benzene, 1,2-Dinitro- | o-Dinitrobenzene |
| Molecular Formula | C6H4N2O4 |
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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
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| Apparent Color | COLORLESS OR YELLOW CRYSTALS, NEEDLES OR PLATES; NEEDLES
FROM BENZENE, PLATES FROM ALC; WHITE CRYSTALS; Pale yellow solid
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| Boiling Point | 319 DEG C
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| Melting Point | 118 DEG C
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| Molecular Weight | 168.12
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| Density | 1.565 g/ml @ 17 DEG C
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| Sensitivity Data | Eyes are irritated by liquid. 1,3-Dinitrobenzene
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| 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.
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| 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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