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cupel

/ˈkjuː.pəl/

1 entry

noun

/ˈkjuː.pəl/C2formaltechnical
  • ruНебольшая пористая чаша, обычно изготовленная из костяной золы, используемая в процессе пробирного анализа для отделения драгоценных металлов, таких как золото или серебро, от неблагородных металлов, например свинца.

A small, porous bowl, typically made from bone ash, used in the assaying process to separate precious metals like gold or silver from base metals such as lead.

  1. Assaying vesselC2formalscientific

    A small, porous cup made of bone ash or similar material, used in the process of cupellation to separate precious metals like gold and silver from base metals such as lead.

    ruКупель для пробирного анализа

    • The assayer placed the lead button containing the gold into the heated cupel.
    • Bone ash cupels are essential for accurate fire assay analysis.
    • The impurities were absorbed by the porous cupel, leaving a pure silver bead.

    Synonymstest

Forms
  • cupels plural form
  • cupels' possessive plural form
  • cupel's possessive singular form