TERMIUM Plus®

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HOT ACID [1 record]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2005-03-08

English

Subject field(s)
  • Chemistry
  • Diamond Industry
CONT

Acid cleaning: [the] use of hot acids to remove dirt or polishing residue from diamonds. Newly-mined rough diamonds are cleaned with hydrofluoric acid; newly-polished diamonds are boiled in a solution of hydrochloric and sulfuric acids to remove oil, graphite, and other debris from surface fractures and abrasions. Diamonds which have been mounted in jewelry are sometimes boiled in sulfuric acid to remove metal residue and dirt impregnated in the girdle.

CONT

Boiler: A member of a processing team who is responsible for cleaning the diamonds, during any stage of processing, by using hot or cold acid.

French

Domaine(s)
  • Chimie
  • Industrie diamantaire
CONT

Les bains d'acide : Pratique très ancienne et courante qui sert à retirer les impuretés prisonnières dans les fissures de surface. Les diamants sont plongés dans un bain d'acide chaud.

Spanish

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