Origin of permanganic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for permanganic
All other permanganates, as well as permanganic acid itself, give solutions of the same color.
Manganese forms two unstable acids, namely, manganic acid and permanganic acid.
Permanganic acid is only known in solution or in a state of combination.