Ammonium chloride

Ammonium chloride (CAS 12125-02-9) is an inorganic salt commercially known as Salmiac or Amchlor, with the molecular formula NH4Cl. It carries no E-code designation and is registered under EC number 235-186-4. It is fully compliant with REACH regulations and listed in major pharmacopoeias.

In textile and leather processing, ammonium chloride acts as a pH buffer by releasing hydrogen ions in solution, maintaining consistent acidic conditions during dyeing and tanning operations. In flame retardant formulations, it decomposes under heat to release ammonia and hydrogen chloride, interrupting combustion chemistry at the molecular level.

Ammonium chloride is available in technical, feed, and Ph.Eur.-compliant pharmaceutical grades as a white crystalline solid. It meets FCC specifications for food-contact and agricultural feed applications. Standard packaging includes 25 kg bags and bulk quantities, with supply chain documentation supporting REACH compliance requirements.