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6A 7A 8A Magnesia/ MgO Cupels

6A 7A 8A Magnesia/ MgO Cupels

Magnesia cupel for smelting and assaying, High temperature resistance MgO cupel.Factory magnesia crucibles cupel the gold melting cupel in ceramic.
  • item no. :

    CS-6A
  • hits :

    613
  • Size: : Full size

  • Material: : Magnesium Oxide

  • Free sample: : Available

  • Place of Origin: : Hunan (China)

  • description

Item Name : 6A 7A 8A Magnesia/ MgO Cupels 

Cupel design:




More demensions of the crucibles for melting gold we have are as follows:

Size D (mm) D1 (mm) D2 (mm) B/R H (mm) H1 (mm) H2 (mm)
CS-6A 40.0  32.7  30.0  3.7  25.4  12.3  6.0 
CS-6C 40.2  30.3  30.5  5.0  27.5  8.0  9.0 
CS-6D 38.8  32.8  30.0  3.0  30.0  7.8  9.5 
CS-7A 39.7  31.2  30.0  4.3  28.5  11.8  9.0 
CS-7AL 39.7  31.2  30.0  4.3  28.5  12.3  6.0 
CS-7AS 40.0  31.0  30.0  4.5  34.0  14.0  12.0 
CS-7B 39.7  31.2  30.0  4.3  32.0  11.8  12.5 
CS-7C 40.0  33.0  30.0  3.5  30.0  9.5  4.0 
CS-8 44.3  34.2  34.6  5.1  27.1  8.5  9.0 
CS-8A 45.3  38.0  36.9  3.7  35.0  12.5  13.0 
CS-9 51.0  40.0  42.1  5.5  29.0  10.5  9.0 
CS-10 60.0  52.6  49.7  3.7  30.2  11.5  11.0 
CS-11 56.8  47.8  48.8  4.5  44.0  14.8  10.0 
CS-12 80.2  57.5  62.5  11.4  47.0  16.5  11.0 
CS-14 110.0  80.0  88.0  15.0  70.0  24.0  14.0 
CS-PC 254.0  184.7  203.2  34.7  161.6  55.0  32.3 

Cupel's function:

Cupellation is a refining process in metallurgy, where ores or alloyed metals are treated under very high temperatures and have controlled operations to separate noble metals, like gold and silver, from base metals like lead, copper, zinc, arsenic, antimony or bismuth, present in the ore. The process is based on the principle that precious metals do not oxidise or react chemically, unlike the base metals; so when they are heated at high temperatures, the precious metals remain apart and the others react forming slags or other compounds.




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