Hemimellitic acid (benzene-1,2,3-tricarboxylic acid) is an organic compound with the molecular formula C6H3(СО2Н)3. Like the other isomers of benzenetricarboxylic acid, hemimellitic acid is a colorless solid. It is prepared by oxidation of 1,2,3-trimethylbenzene.[1]

Hemimellitic acid
Names
IUPAC name
benzene-1,2,3-tricarboxylic acid
Identifiers
3D model (JSmol)
ChEMBL
ChemSpider
ECHA InfoCard 100.008.471 Edit this at Wikidata
EC Number
  • 209-317-0
UNII
  • InChI=1S/C9H6O6/c10-7(11)4-2-1-3-5(8(12)13)6(4)9(14)15/h1-3H,(H,10,11)(H,12,13)(H,14,15)
    Key: UJMDYLWCYJJYMO-UHFFFAOYSA-N
  • C1=CC(=C(C(=C1)C(=O)O)C(=O)O)C(=O)O
Properties
C9H6O6
Molar mass 210.141 g·mol−1
Appearance white solid
Melting point 190–192 °C (374–378 °F; 463–465 K)
Hazards
GHS labelling:
GHS07: Exclamation mark
Warning
H315, H319, H335
P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Isomers

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References

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  1. ^ Park, Chang-Man; Sheehan, Richard J. (2000). "Phthalic Acids and Other Benzenepolycarboxylic Acids". Kirk-Othmer Encyclopedia of Chemical Technology. doi:10.1002/0471238961.1608200816011811.a01. ISBN 0471238961.