Organic Reaction Quench/Workup: Saturated Ammonium Chloride is used to quench and work up Grignard, organolithium, and metal hydride reactions, decomposing intermediates and aiding phase separation.

Ammonia–Ammonium Buffer Preparation: Combined with ammonium hydroxide to prepare ammonium buffer (pH ~9–10) for complexometric EDTA titrations, such as water hardness determinations.

Electrochemistry (Electrolyte/Salt Bridge): Serves as an electrolyte or salt bridge medium in teaching and research electrochemical cells.

Analytical Chemistry (Chloride Source): Provides chloride ions for precipitation and confirmatory tests (e.g., silver halide formation) and ionic strength adjustment.

RBC Lysis Buffer Preparation: Diluted from Saturated Ammonium Chloride to make erythrocyte lysis solutions for leukocyte isolation from whole blood.

Fixative Quenching in Microscopy: After dilution, used to quench free aldehydes following paraformaldehyde fixation to reduce background fluorescence.

General Neutralization/Workup: Employed to neutralize basic reaction mixtures and convert reactive species to water-soluble ammonium salts during sample cleanup.