Confused HCl: Hydrogen chloride or hydrochloric acid?

Sathyanarayana Reddy Perumalla, Changquan Calvin Sun

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


Hydrogen chloride can exist in various forms. Indiscriminative uses of the abbreviation "HCl" for its different forms has led to considerable confusion in the literature. The discovery of hidden solid forms of widely studied molecules by using different forms of hydrogen chloride highlights the need of clarifying the terminology surrounding hydrogen chloride in chemical research (see figure).

Original languageEnglish (US)
Pages (from-to)6462-6464
Number of pages3
JournalChemistry - A European Journal
Issue number21
StatePublished - May 21 2012


  • crystal engineering
  • hydrochloric acid
  • hydrogen chloride
  • materials science
  • solid-state chemistry


Dive into the research topics of 'Confused HCl: Hydrogen chloride or hydrochloric acid?'. Together they form a unique fingerprint.

Cite this