Definition of spirits of salt in US English:

spirits of salt


  • archaic term for hydrochloric acid
    • ‘Spirits of wine seems to have come into the category of spirits of salt and spirits of turpentine etc., and was only used for preserving, cleaning or mixing in as a chemical as far as I can make out.’
    • ‘Because hydrogen chloride was first prepared from salt, hydrochloric acid was originally referred to as spirits of salt.’
    • ‘Need the right expert in spirits of salt?’
    • ‘For maximum effectiveness, remove as much water from the blocked area as possible before adding spirits of salt.’