Vial

Vial is an item mostly used by the Alchemy profession for making elixirs, oils, and potions.

Most other vials are Quest items.

Alchemy
Since the Shattering, all potions and elixirs now use the same basic vial type, rather than the five types used before that point. All vials other than the basic "Empty Vial"s were turned into poor-quality items and cannot be used for alchemy recipes. Additionally, a unique vial is used for the alchemy mount Vial of the Sands.
 * Crystal Vial
 * Pyrium-Laced Crystalline Vial

Quest items

 * Coated Cerulean Vial or Filled Cerulean Vial
 * Empty Water Vial
 * Empty Vial Labeled or Filled Vial Labeled
 * Empty Vial Labeled or Filled Vial Labeled
 * Empty Vial Labeled or Filled Vial Labeled
 * Empty Vial Labeled or Filled Vial Labeled
 * Eridan's Vial
 * Nagmara's Vial or Nagmara's Filled Vial
 * Unused Scraping Vial
 * Vial of Blessed Water
 * Vial of Dire Water
 * Vial of Hatefury Blood
 * Vial of Innocent Blood
 * Vial of Phlogiston
 * Vial of Purest Water
 * Vial of Spider Venom