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.

SDS Anhydrous HCl