Ammonium Chloride - NH4Cl

What is Ammonium Chloride?

NH4Cl is an inorganic compound with chemical name Ammonium Chloride. It is also known as sal ammoniac, the salt of ammonia and hydrogen chloride. It is a by-product of sodium carbonate. It has diuretic and expectorant effects. In its pure form, it is crystalline salt, white in colour. This compound is highly water-soluble and mildly acidic. It is used in veterinary medicine in the prevention of urinary stones in sheep, goats, and cattle. When ammonium sulfate and NaCl solutions react, NH4Cl is produced. When a 5% solution of ammonium chloride (by weight) is mixed with water, the resulting solution has a pH value ranging from 4.6 to 6.0.

Properties of Ammonium Chloride

NH4Cl Ammonium Chloride
Molecular Weight/ Molar Mass 53.491 g/mol
Density 1.53 g/cm³
Boiling Point 520 °C
Melting Point 338 °C

Structure of NH4Cl

Ammonium Chloride structure

Ammonium Chloride structure

Uses of Ammonium Chloride

  • It is used in fertilizers as a nitrogen source.
  • It is used in medicine (especially in cough medicine) as an expectorant.
  • It is used in glue which helps to bond plywood.
  • It is used in Leclanche cells in aqueous solutions.
  • It is used in food additives – in bread making as a yeast nutrient.
  • It is used as an acidifier.
  • It is used in cooling baths to create low temperatures.
  • They are used as buffer solutions along with ammonia.
  • It is given to cattle as feed supplements.

Learn more about the structure and the physical and chemical properties of NH4Cl from the experts at BYJU’S.

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