Matches in DBpedia 2015-10 for { ?s ?p "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 respectively trihydrogen-, dihydrogen-, and hydrogenethylenetetracarboxylate. The same names are used for the corresponding esters.The acid can be obtained by hydrolysis of tetraethyl ethylenetetracarboxylate, which in turn can be obtained from diethyl dibromomalonate with sodium iodide.Ethylenetetracarboxylic dianhydride, a twofold anhydride of this compound, is an exotic oxocarbon synthesized by pyrolysis of ethylenetetracarboxilic acid in 1981 by Patterson and others."@en }
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- Ethylenetetracarboxylic_acid abstract "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 respectively trihydrogen-, dihydrogen-, and hydrogenethylenetetracarboxylate. The same names are used for the corresponding esters.The acid can be obtained by hydrolysis of tetraethyl ethylenetetracarboxylate, which in turn can be obtained from diethyl dibromomalonate with sodium iodide.Ethylenetetracarboxylic dianhydride, a twofold anhydride of this compound, is an exotic oxocarbon synthesized by pyrolysis of ethylenetetracarboxilic acid in 1981 by Patterson and others.".