Acid

ACID   Alchemical acids are area-effect splash weapons inflicting 1d8 points of damage for every total +5 Alchemy rating possessed by their creator, with a minimum of 2d8 acid damage. A Reflex saving throw (DC 10 + 1/2 Alchemy skill rating + thrower's Dexterity modifier) allows half damage. Acid has other uses as well as being a weapon -- it can be poured into a lock to melt it open without triggering it, or very tiny items can be dissolved in it -- some alchemists believe that the properties of a magical item can be discerned as it dissolves in acid, its mystical essence released. Some claim that drinking acid can prevent petrification, but surely one would have to be a stalwart soul to survive such an act...