permanganate noun. [pǝ'maŋgǝnǝt, -eɪt] M19.
[from PER-¹ + MANGAN(ESE + -ATE¹.]
Chemistry. A salt of the manganese oxyanion MnO₄. Cf. MANGANATE.

■ permanganic [pǝ:maŋ'ganɪk] adjective containing manganese in its highest oxidation state (7);

■ permanganic acid, a strong acid, HMnO₄, known only as a purple aqueous solution: M19.

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