Oil of vitriol

Oil of vitriol was a type of caustic distillation of green vitriol.

Usages

 * This substance was used in all manner of tradeskills, such as the dying and preparation of some fabrics, for example, cashmere wool into cashmere yarn.
 * This substance was used in the smithing of tin ingots into tinplates.
 * Nitre was sometimes used in the creation of stronger distillations. For instance, it could be distilled with alum and nitre to create the substance aqua fortis.

Appearances

 * Video Games
 * Neverwinter