After the litharge has been absorbed by the
cupel, buttons of silver were formed and settled in the middle of the
cupel. If the alloy
Kaynak: CupellationThe
cupel is placed in the furnace and copper is separated into the lead which forms lithage in the
cupel leaving the noble metal.
Kaynak: De re metallicaThe refining of methods during the Medieval and Post Medieval periods led to the invention of the
cupel which resembles a small egg cup,
Kaynak: CrucibleIn fire assay, magnesite
cupels can be used for cupellation as the magnesite
cupel will resist the high temperatures involved.
Kaynak: MagnesiteThe male figure now holds a
cupel , a tool used in the manufacture of jewellery, an important industry in modern Birmingham.
Kaynak: Coat of arms of BirminghamLead was melted in a bone ash 'test' or '
cupel' and air blown across the surface. This oxidise d the lead to litharge , leaving a button
Kaynak: Refining (metallurgy)practical approach was to use calibrated combinations of platinum, gold and silver alloys placed in a
cupel or crucible and observe their melting.
Kaynak: James PrinsepDurga Chalisa mentions that Hanuman leads the procession of the ferocious lion-riding Bhavani , who holds a sword and
cupel in the hands,
Kaynak: Hanuman