Essential Acid (VH)

Regular 
Turns regular acid into the magical essence of acid. No substance is immune to its bite, and it inflicts three times as much damage before being neutralized. Essential Water or Essential Flame, in like quantity, will nullify Essential Acid. If frozen with the Freeze spell, it is harmless until thawed. 
At the GM’s option, this spell may produce alkahest (p. 220).

Duration: Permanent until neutralized. 
Cost: 8 per gallon. 
Prerequisites: Magery 3 and all six Acid spells.

Item 
Staff, wand, or jewelry. Usable only by mages.  
Energy cost to create: 1,100.