Tags: Chemical Compound, Chemical Substance.
Ethylenetetracarboxylic acid is an organic compound with formula C6H4O8 or (HO(OC)-)2C=C(-(CO)OH)2.By removal of four protons the acid yields the anion C6O4−8 ethylenetetracarboxylate which is one of the oxocarbon anions (consisting solely of oxygen and carbon. By loss of 1 through 3 protons it forms the anions C6H3O−8 C6H2O2−8 and C6H1O3−8 called respectivey trihydrogen- dihydrogen- and hydrogenethylenetetracarboxylate.