Naushadar (Sal Ammoniac) - Ammonium Chloride

Also known as: Sal Ammoniac, Noshadar Thikri, Navasara, Salt of Ammon, Malah al-Nar (Salt of Fire), Egyptian Salt.

Scientific name: Ammonium chloride ($NH_4Cl$).

The Geological Origin: Naushadar is a rare "Sublimation Mineral." In nature, it bypasses the liquid phase, crystallizing directly from volcanic gases or burning coal seams. Historically, it was collected from the vents of fumaroles, appearing as delicate, feathery white crusts that would vanish instantly if touched by rain.

Physical Characteristics: A translucent to white crystalline salt. It often comes in "Thikri" (fragmented shards) or "Danda" (stick/block) forms. It has a sharp, salty, and cooling sensation on the tongue and is famous for its ability to sublime—turning into a thick white smoke when placed on high heat.

Chemical Profile: A unique mineral composed of Nitrogen, Hydrogen, and Chlorine. It is highly water-soluble and creates an endothermic reaction, significantly cooling the water as it dissolves.

Historical Context: Its name "Sal Ammoniac" dates back to the Temple of Jupiter Amun in ancient Libya, where it was collected from the soot of burning camel dung. For over a millennium, it was the "Alchemist's Key," essential in the works of Geber (Jabir ibn Hayyan) for its role in the "Great Work" of metal transmutation and spirit-fixing.

Traditional Preparation: In heritage metalwork, a block of Naushadar is used to "Tin" copper vessels (the Kalai process). The hot copper is rubbed with the salt, which reacts with metal oxides to create a pristine, silver-like surface.