Hemimellitic acid

Structural formula
General
Surname	Hemimellitic acid
other names	1,2,3-benzenetricarboxylic acid 1,2,3-tricarboxybenzene
Molecular formula	C 9 H 6 O 6
External identifiers / databases
CAS number 569-51-7 732304-21-1 (hydrate) EC number 209-317-0 ECHA InfoCard 100.008.471 PubChem 11288 Wikidata Q27070757
properties
Molar mass	210.14 g mol −1
Physical state	firmly
Melting point	190-192 ° C (dec.)
safety instructions
GHS labeling of hazardous substances Caution H and P phrases H: 315-319-335 P: 261-305 + 351 + 338
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Hemimellitic (1,2,3-benzenetricarboxylic acid) is next to the trimellitic acid (1,2,4-benzenetricarboxylic acid) and trimesic acid (1,3,5-benzenetricarboxylic) one of three possible position isomers of benzene tricarboxylic acids .

The common name is derived from mellitic acid (benzene hexacarboxylic acid), which in turn was isolated from mellit ( honey stone ). The syllable hemi- denotes half of the substituents .

Mellitic acid (benzene hexacarboxylic acid)	Hemimellitic acid

Web links

• Entry to hemimellitic (h) acid. In: Römpp Online . Georg Thieme Verlag, accessed on June 15, 2015.

Individual evidence

1. ↑ ^{a b c} data sheet 1,2,3-Benzenetricarboxylic acid from Sigma-Aldrich , accessed on June 10, 2015 ( PDF ).