Anhydrous Hydrogen Chloride

Anhydrous Hydrogen Chloride (AHCl)

Anhydrous Hydrogen Chloride (AHCl) is a colorless gas which plays an important role in various technologies and in pharmaceutical/chemical industries. The majority of Anhydrous Hydrogen Chloride is used to produce hydrochloric acid, a solution of AHCl in water. Concentrations range from less than 1% up to 38%. The latter is referred to as “concentrated” or “fuming” hydrochloric acid.

Beside the use in hydrochloric acid, AHCl is also an important reagent used in chemical transformations, e.g.:

  • Hydrochlorination of rubber
  • Production of vinyl and alkyl chlorides
  • Production of pharmaceutical products
  • the semiconductor industry, it is used to both etch semiconductor crystals and to purify silicon via trichlorosilane (SiHCl3).
  • cotton treatment to delint it, and to separate it from wool.
  • organic synthesis, e.g. generation of chloride based Lewis acids which must be absolutely dry to keep their reactivity.
  • Etc.

AHCl is only available in tube trailers of approx. 20 tons. Purity is ≥ 99.9%.

Safety Data Sheet (SDS) includes information regarding safe handling, storage and transportation of the product, physical and chemical properties, stability and reactivity, toxicological and ecological information of the product.