Gold annealing crucibles 25×25 supply

Product description

Gold annealing crucibles 25×25 supply (reference nº 227) – 25mm Diameter, 25mm Height

Fireclay Annealing Cups / gold annealing crucibles possess a smooth unglazed surface and thin walls. These provide them with excellent resistance against thermal shock.

Furthermore, they have a tronco-conical form designed for gold bead annealing (after the partition with concentrated nitric acid) and for ignition of precipitates such a barium sulphate and copper sulphide.

These gold annealing crucibles are suitable to work under ISO11426.

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