potassium nitratehttp://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31373737enGetty Institute2026-03-30 20:40:47http://AATesaurus.cultura.gencat.cat/aat/getty_enTesaurus d'Art i Arquitecturatext/html nitre saltpetre niter nitrate of potash nitrate, potassium potash, nitrate of saltpeter