Mellitic anhydride

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Mellitic anhydride
Mellitic trianhydride.svg
Mellitic anhydride molecule
CAS number 4253-24-1 N
PubChem 255291
ChemSpider 223826 N
Jmol-3D images Image 1
Molecular formula C12O9
Molar mass 288.12 g mol−1
Except where noted otherwise, 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.[1][2][3] The substance was properly characterized in 1913 by H. Meyer and K. Steiner.[4][5] It retains the aromatic character of the benzene ring.[6][7]


  1. ^ Wöhler, F. (1826). "Ueber die Honigsteinsäure". Annalen der Physik und Chemie 83 (7): 325–334. doi:10.1002/andp.18260830706. 
  2. ^ Liebig, J.; Wöhler, F. (1830). "Ueber die Zusammensetzung der Honigsteinsäure". Annalen der Physik und Chemie 94 (2): 161–164. doi:10.1002/andp.18300940202. 
  3. ^ Erdmann, O. L.; Marchand, R. F. (1848). "Ueber die Mellithsäure". Journal für praktische Chemie 43 (2/3): 129–144. doi:10.1002/prac.18480430113. 
  4. ^ Meyer, H.; Steiner, K. (1913). "Über ein neues Kohlenoxyd C12O9" [A new carbon oxide C12O9]. Berichte der Deutschen Chemischen Gesellschaft 46 (1): 813–815. doi:10.1002/cber.191304601105. 
  5. ^ Bugge, G. (1914). "Chemie: Ein neues Kohlenoxyd". Naturwissenschaftliche Wochenschrift. 13/29 (12): 188. 
  6. ^ Fowler, P. W.; Lillington, M. (2007). "Mellitic Trianhydride, C12O9: The Aromatic Oxide of Carbon". Journal of Chemical Information and Modeling 47 (3): 905–908. doi:10.1021/ci600547n. 
  7. ^ Ermer, O.; Neudörfl, J. (2000). "Structure of Mellitic Trianhydride". Helvetica Chimica Acta 83 (1): 300–309. doi:10.1002/(SICI)1522-2675(20000119)83:1<300::AID-HLCA300>3.0.CO;2-L.