Aqua fortis

Aqua fortis, also known as nitric acid, was a highly corrosive liquid substance known in the Realms.

Properties
This substance was typically yellow in color, but could range to orange-brown. Though highly corrosive, aqua fortis was not potent enough of an acid to melt through gold and platinum. However, in a sufficiently concentrated form, it could inflict immediate injuries to a victim, especially if ingested.

Crafting
Aqua fortis could be distilled from alum and nitre using oil of vitriol.

Usages

 * Aqua fortis was one of the ingredients needed for brewing aqua regia, a more potent form of acid, alongside nitre and sal ammoniac.
 * Aqua fortis was often used in the process of refining metals or giving them etchings.
 * The acid was also used for staining bone and wood.
 * This substance acted as a material component for the spell magic mirror.