Examples of 'cupel' in a sentence
Meaning of "cupel"
Cupel is a small porous container made of bone ash used to absorb and separate precious metals from lead
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- A small circular receptacle used in assaying gold or silver with lead.
- To refine by means of a cupel.
How to use "cupel" in a sentence
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cupel
The cupel should be heated at the same time.
Base metals oxidize and absorb into the cupel.
Cupel sizes depend on the amount of material to be assayed.
The prosthesis blank is placed in a cupel on the glass powder.
The metal cupel is sandblasted or attacked chemically with acid.
The volatilized material was condensed on the cupel and assayed.
The cupel absorbs the lead, leaving only precious metal behind.
The primary tool for small scale cupellation was the cupel.
After screening, the powder was compacted in a metal cupel.
A shallow depression in the centre of the cupel was made with a rounded pestle.
The cupel is crimped on the carbide slug, then the unit is placed in a cell.
Used in an oxidizing atmosphere, base metals are oxidized and are absorbed into the cupel.
In this case, a cupel assay must be had.
Approximately 10 g of a sample are placed on a metal cupel.
The composite product ( sliver ) then has its cupel removed by sandblasting.
See also
Cupel for hamam1.
The composite product thus produced ( dome ) then has its cupel removed by sandblasting.
The first outer cupel, or upstream cupel 8, delimits a first collector 15 a with the first inner cupel 14 a.
In this embodiment, the composition has been cast in a cupel 100 forming a case.
About 5 g of IM-12 crystallized solid, prepared as described above, is placed in a ceramic cupel.
The first collector 15 a is delimited between the upstream outer cupel 18 and the first innercupel 14 a.
The third collector 15 c is delimited between the third inner cupel 15 c and the fourth inner cupel 14 d.
The second collector 15 b is delimited between the first inner cupel 14 a and the second inner cupel 14 b.
