Slightly hygroscopic white crystals historically used to separate gold from silver or copper. Ammonium chloride was known in ancient times where legend tells it was observed in the Temple of Zeus-Ammon in Egypt as it was scraped from the ceiling after camel dung was burned. Ammoniun chloride has also been used as a mordant, as a textile finishing agent to produce luster and as a tanning agent for leather. Currently, the most common uses for ammonium chloride are as a soldering flux for iron, as a component in galvanizing solutions, as an electrolyte in dry cells and as a metal coloring agent.
Synonyms and Related Terms
sal ammonia; sal ammoniac; sal ammoniacum; ammonium muriate; salmiak (Ces.); chlorid amonn (Ces.); ammoniumklorid (Dan., Sven.); Ammoniumchlorid (Deut.); cloruro di ammonio (It.); salmiakzout (Ned.); chlorek amonu (Pol.); nashadir (Arab.); naosha (Chin.); nao sadar (India); salmiac; Amchlor; Darammon
Soluble in water, methanol, ethanol. Insoluble in acetone, ether, ethyl acetate. Incompatible with alkalis and lead or silver salts.
Crystals form aggregates with conchoidal fracture.
|Mohs Hardness||1.0 - 2.0|
|Melting Point||340-350 (sublimes)|
|Molecular Weight||mol. wt. = 53.5|
Hazards and Safety
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