Mellitic anhydride

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Mellitic anhydride
200px
Mellitic anhydride molecule
Names
IUPAC name
4,9,14-trioxatetracyclo[10.3.0.02,6.07,11]pentadeca-1,6,11-triene-3,5,8,10,13,15-hexone
Identifiers
4253-24-1 N
ChemSpider 223826 N
Jmol 3D model Interactive image
PubChem 255291
  • InChI=1S/C12O9/c13-7-1-2(8(14)19-7)4-6(12(18)21-11(4)17)5-3(1)9(15)20-10(5)16 N
    Key: NNYHMCFMPHPHOQ-UHFFFAOYSA-N N
  • InChI=1/C12O9/c13-7-1-2(8(14)19-7)4-6(12(18)21-11(4)17)5-3(1)9(15)20-10(5)16
    Key: NNYHMCFMPHPHOQ-UHFFFAOYAV
  • O=C2OC(=O)c1c4c(c3c(c12)C(=O)OC3=O)C(=O)OC4=O
Properties
C12O9
Molar mass 288.12 g·mol−1
Appearance colorless solid[1]
Melting point 161 °C; 322 °F; 434 K [1]
Vapor pressure 0.000004 mmHg (20°C)[1]
Vapor pressure {{{value}}}
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Mellitic anhydride, the anhydride of mellitic acid, is an organic compound with the formula C12O9.

Mellitic anhydride is an oxide of carbon (oxocarbon), like CO2, CO, and C3O2. It is a white sublimable solid, apparently obtained by Liebig and Wöhler in 1830 in their study of mellite ("honey stone"); they assigned it the formula C4O3.[2][3][4] The substance was properly characterized in 1913 by H. Meyer and K. Steiner.[5][6] It retains the aromatic character of the benzene ring.[7][8]

References

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