Breathe off

Exhaling is an old term from the metallurgy industry , it describes the annealing of the so-called chapels (these are porous crucibles made of bone ash), whereby bound water and carbonic acid initially evaporate (therefore probably exhaling) and later largely removed. Chapels or cupels are required for cupellation .

literature

• Georgius Agricola , De Re Metallica Libri XII., Twelve Books of Mining and Metallurgy . P. 205, new edition Fourier Verlag, 2004, ISBN 3-932412-31-1

See also

Wiktionary: abätmen  - explanations of meanings, word origins , synonyms, translations

 Wikisource: Abätmen  - Article of the 4th edition of Meyers Konversations-Lexikon