Note 194 — Chapter XXXIV · HOW TO MAKE TWO KINDS OF AQUAFORTIS, ONE FOR PARTING,[194] THE OTHER FOR ENGRAVING & ETCHING.

Acqua da partire is the acid into which you put alloys and clippings, filings, etc., to separate gold from silver, or silver from copper, or gold from gilt copper, in other words nitric acid. Partitore is the man who exercises this trade. Hoepli’s Manual, ‘Oreficeria,’ published Milan, gives information about the modern way of using acids for ‘separating or parting.’