Picryl chloride
Picryl chloride is an organic compound with the formula ClC6H2(NO2)3. It is a bright yellow solid that is highly explosive, as is typical for polynitro aromatics such as picric acid. Its detonation velocity is 7,200 m/s.
Names | |
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IUPAC name
2-Chloro-1,3,5-trinitrobenzene | |
Other names
2,4,6-Trinitrochlorobenzene, 2-chloro-1,3,5-trinitrobenzene, TNCB | |
Identifiers | |
3D model (JSmol) |
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ChemSpider | |
ECHA InfoCard | 100.001.695 |
PubChem CID |
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UNII | |
UN number | 0155; 3365 (wetted) |
CompTox Dashboard (EPA) |
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Properties | |
C6H2ClN3O6 | |
Molar mass | 247.55 g/mol |
Appearance | Almost white or yellow needles |
Melting point | 83 °C |
Hazards | |
R-phrases (outdated) | R2 R26/27/28 R50/53 |
S-phrases (outdated) | S28 S35 S36/37 S45 S60 S61 |
Explosive data | |
Detonation velocity | 7,200 m/s |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
Infobox references | |
Reactions
The reactivity of picryl chloride is strongly influenced by the presence of three electron-withdrawing nitro groups. Consequently picryl chloride is an electrophile as illustrated by its reactivity toward sulfite to give the sulfonate:[2]
- ClC6H2(NO2)3 + Na2SO3 → NaO3SC6H2(NO2)3 + NaCl
Picryl chloride is also a strong electron acceptor. It forms a 1:1 charge-transfer complex with hexamethylbenzene.[3]
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References
- 2-Chloro-1,3,5-trinitrobenzene at Sigma-Aldrich
- G. K. Helmkamp and D. J. Pettitt (1966). "Trimethyloxonium 2,4,6-Trinitrobenzenesulfonate". Org. Synth. 46: 122. doi:10.15227/orgsyn.046.0122.CS1 maint: uses authors parameter (link)
- Ross, S.; Bassin, M.; Finkelstein, M.; Leac, A. L. (1954). "Molecular Compounds. I. Picryl Chloride-Hexamethylbenzene in Chloroform Solution". J. Am. Chem. Soc. 76: 69–74. doi:10.1021/ja01630a018.CS1 maint: uses authors parameter (link)
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