1,4-Dinitrobenzene
1,4-Dinitrobenzene is an organic compound with the formula C6H4(NO2)2. It is one of three isomers of dinitrobenzene. The 1,4-isomer is most symmetrical. The compound is a yellow solid that is soluble in organic solvents. It is prepared from 4-nitroaniline by diazotization followed by treatment with sodium nitrite in the presence of a copper catalyst.[1]
Names | |
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Preferred IUPAC name
1,4-Dinitrobenzene | |
Other names
para-dinitrobenzene | |
Identifiers | |
3D model (JSmol) |
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1105828 | |
ChemSpider | |
ECHA InfoCard | 100.002.576 |
EC Number |
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PubChem CID |
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RTECS number |
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UNII | |
UN number | 3443 1597 |
CompTox Dashboard (EPA) |
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Properties | |
C6H4N2O4 | |
Molar mass | 168.108 g·mol−1 |
Appearance | pale yellow solid |
Density | 1.625 g/cm3 |
Melting point | 173 °C (343 °F; 446 K) |
Boiling point | 299 °C (570 °F; 572 K) |
69 mg/L | |
Hazards | |
GHS pictograms | |
GHS Signal word | Danger |
GHS hazard statements |
H300, H310, H330, H373, H400, H410 |
P260, P262, P264, P270, P271, P273, P280, P284, P301+310, P302+350, P304+340, P310, P314, P320, P321, P322, P330, P361, P363, P391, P403+233, P405, P501 | |
Flash point | 150°C |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
Infobox references | |
References
- E. B. Starkey (1939). "p-Dinitrobenzene". Org. Synth. 19: 40. doi:10.15227/orgsyn.019.0040.
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