Mellitic acid

Mellitic acid
	Skeletal formula
Ball-and-stick model	Space-filling model
Names
	Preferred IUPAC name Benzenehexacarboxylic acid
	Other names Graphitic acid
Identifiers
CAS Number	517-60-2 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:41089 ;
ChEMBL	ChEMBL1231329 ;
ChemSpider	2244 ;
DrugBank	DB01681 ;
ECHA InfoCard	100.007.495
PubChem CID	2334;
UNII	P80QSP14DM ;
CompTox Dashboard (EPA)	DTXSID50199650 ;
	InChI InChI=1S/C12H6O12/c13-7(14)1-2(8(15)16)4(10(19)20)6(12(23)24)5(11(21)22)3(1)9(17)18/h(H,13,14)(H,15,16)(H,17,18)(H,19,20)(H,21,22)(H,23,24) Key: YDSWCNNOKPMOTP-UHFFFAOYSA-N ; InChI=1/C12H6O12/c13-7(14)1-2(8(15)16)4(10(19)20)6(12(23)24)5(11(21)22)3(1)9(17)18/h(H,13,14)(H,15,16)(H,17,18)(H,19,20)(H,21,22)(H,23,24) Key: YDSWCNNOKPMOTP-UHFFFAOYAB;
	SMILES O=C(O)c1c(c(c(c(c1C(=O)O)C(=O)O)C(=O)O)C(=O)O)C(=O)O;
Properties
Chemical formula	C12H6O12
Molar mass	342.16 g/mol
Density	1.68 g/cm3, 2.078 (calc.)
Melting point	> 300 °C (572 °F; 573 K)
Boiling point	678 °C (1,252 °F; 951 K) (calc.)
Acidity (pKa)	1.40, 2.19, 3.31, 4.78, 5.89, 6.96
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Mellitic acid, also called graphitic acid or benzenehexacarboxylic acid, is an acid first discovered in 1799 by Martin Heinrich Klaproth in the mineral mellite (honeystone), which is the aluminium salt of the acid. It crystallizes in fine silky needles and is soluble in water and alcohol.