Cupels are magnesia or bone ash cup shaped containers used in assaying to separate precious metals from base elements such as lead. They operate as a "differential filter" and are porous to metal oxides, but not metals. Used in an oxidizing atmosphere, base metals are oxidized and are absorbed into the cupel. Since precious metals do not oxidize, they are not absorbed and are left on top of the cupel for weighing or further analysis.
1. Made of Magnesite
2. Used for smelting and assaying
3. High thermal shock resistance
4. Magnesia: ≥95%
5. Silica, Silicon dioxide: 0-5%
6. Property: high refractoriness(1100 centigrade degrees),rapid absorption(70%),and recovery rate of 97%-98.5%,easy to use, without milling
|Weight: 50-55 grams|
|Weight: 80-86 g|
|Diameter: 40 mm||Diameter: 43-45 mm|
|Height: 25 mm||Height: 30-34 mm|
|Weight: 58-60 g|
|Weight: 120-123 g|
|Diameter: 40 mm||Diameter: 50-52 mm|
|Height: 28-30 mm||Height: 30-34 mm|
|Note :We can provide you the product by you desire.|
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Liling Xing Tai Long Special Ceramic Co.,Ltd
Tel: +86 13975373343
Company address: Shentan Industrial Zone, Liling, Hunan, 412200
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