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ChemicalBook--->CAS DataBase List--->25154-54-5

25154-54-5

25154-54-5 Structure

25154-54-5 Structure
IdentificationBack Directory
[Name]

dinitrobenzene
[CAS]

25154-54-5
[Synonyms]

dinitrobenzol
dinitrobenzene
dinitro-benzen
Dintrobenzen solid
Dinitrobenzol solid
Dinitrobenzol (All Isomers)
[EINECS(EC#)]

246-673-6
[Molecular Formula]

C6H4N2O4
[MOL File]

25154-54-5.mol
[Molecular Weight]

168.107
Chemical PropertiesBack Directory
[Melting point ]

89-174 °C
[Boiling point ]

297.01°C (rough estimate)
[density ]

1.6328 (rough estimate)
[refractive index ]

1.4738 (estimate)
[form ]

Colorless or yellowish needles or plates
[EPA Substance Registry System]

Dinitrobenzene (25154-54-5)
Safety DataBack Directory
[RIDADR ]

1597
[HazardClass ]

6.1(a)
[PackingGroup ]

II
[Safety Profile]

Suspected carcinogen. A poison. When heated to decomposition it emits toxic fumes of NOx. See also oDINITROBENZENE.
[Hazardous Substances Data]

25154-54-5(Hazardous Substances Data)
Hazard InformationBack Directory
[General Description]

One or more of the three isomeric (1,2- 1,3- and 1,4-) dinitrobenzenes, which are solids at room conditions, presumably in a non-aqueous solvent or carrier. Toxic by skin absorption. Exposure of the confined material to heat or shock may result in explosive decomposition. Produces toxic oxides of nitrogen during combustion.
[Reactivity Profile]

dinitrobenzene may react vigorously with oxidizing materials. Reaction with nitric acid (nitration) leads to a mixture of trinitrobenzenes possessing high-explosive properties [Urbanski, 1967, vol. 3, p. 290]. If heat and reaction conditions of the nitration are not controlled, detonation comparable to that of TNT may occur [Anon., J. R. Inst. Chem., 1960, 84, p. 451]. A mixture of 1,3-dinitrobenzene with tetranitromethane can be highly explosive [Urbanski, 1964, vol. 1, 592]. 1,2-dinitrobenzene is a severe explosion hazard when shocked or exposed to heat or flame.
[Health Hazard]

Highly toxic, may be fatal if inhaled, swallowed or absorbed through skin. Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact. Effects of contact or inhalation may be delayed. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution.
[Fire Hazard]

Combustible material: may burn but does not ignite readily. Containers may explode when heated. Runoff may pollute waterways. Substance may be transported in a molten form.
[Uses]

Synthesis of dyestuffs, explosives, celluloid production
[Definition]

ChEBI: 1,2-dinitrobenzene is a dinitrobenzene.
[Carcinogenicity]

In vitro studies show that m-DNB is mutagenic in Salmonella typhimurium.
The 2003 ACGIH threshold limit valuetime- weighted average (TLV-TWA) for all isomers of dinitrobenzene is 0.15 ppm (1.0mg/ m3) with a notation for skin absorption.
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