Ammonium chloride is an inorganic compound with the formula NH4Cl and a white crystalline salt that is highly soluble in water, on water ammonia, ethanol (low), glycerol.

Electrochemical uses

Ammonium chloride can be usd as a simple electrolyte for zinc/carbon and water based supercapacitors.

More interesting uses is for synthesize a proton exchange membrane for proton flow batteries; for example it can be used in a dry NiMh battery, instead of alkaline wet solutions.

With CMC (carboxymethylcellulose) it can form a solid proton exchange membrane (biocompatible and biodegradable) or it can be used as a solid proton conducting electrolyte between MH and Ni(OH)2-NiOOH  or other batteries based on protons.

For example there exist a lot of studies based on organic electrodes with organic redox couples like hydroquinones, rhodizoic acids, ascorbic acid and many others.

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