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Reference.org
Mellitic acid
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<p>Mellitic acid, also called graphitic acid or benzenehexacarboxylic acid, is an <a href="/facts/Acid/FySU18n1">acid</a> first discovered in 1799 by <a href="/facts/Martin_Heinrich_Klaproth/5DAt7l6Q">Martin Heinrich Klaproth</a> in the <a href="/facts/Mineral/LkUFbNmv">mineral</a> <a href="/facts/Mellite/exWNtyqY">mellite</a> (honeystone), which is the <a href="/facts/Aluminium/7wmR8jYE">aluminium</a> <a href="/facts/Salt_(chemistry)/lsSKwGpn">salt</a> of the acid. It crystallizes in fine silky needles and is soluble in <a href="/facts/Water/0lkXnJPK">water</a> and <a href="/facts/Ethanol/3lCLfBSP">alcohol</a>. </p>