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Read MoreAchieve unparalleled levels of purity with our Bone Ash Cupels. Engineered to remove impurities and unwanted elements, these cupels enable you to extract the true essence of your precious metals.
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Read MoreAchieve unparalleled levels of purity with our Bone Ash Cupels. Engineered to remove impurities and unwanted elements, these cupels enable you to extract the true essence of your precious metals.
item no. :
CS-7A-BColor :
BeigdePort :
Any ports of Chinalead date :
1-7 daysSize: : Full list
Material: : Bone ash
Free sample: : Available
Place of Origin: : Hunan (China)
1) Bone ash cupels are made from bone ash, which is a high-temperature material that is used to absorb impurities
from molten metal.
2) They are capable of withstanding temperatures up to 1200°C (2192°F).
3) The cupel has a porous texture which enables it to absorb impurities from metals.
4) It is used in the process of refining silver, gold and other precious metals.
5) The cupel is placed into a furnace and heated to a high temperature.
6) As the metals are melted and poured into the cupel, the impurities are absorbed by the porous material.
7) The cupel is then removed and the metals can be recovered from it.
8) Bone ash cupels are also used in the process of assaying, which is the determination of the purity of a precious metal.
1. Used to determine the amount of non-combustible ash residue in a sample.
2. Used for metal analysis in the fields of metallurgy and archaeology.
3. Used to measure the amount of sulfur, phosphorus, and other non-combustible elements in a sample.
4. Used to measure the carbon content in steel and other metals.
5. Used to determine the amount of non-metallic elements like boron, silicon, and phosphorus in a sample.
6. Used in the manufacture of alloys, to determine the purity and composition of the alloy.
1.Bone ash: ≥60%
2.Property: High refractoriness(1100 centigrade degrees),rapid absorption(70%),and recovery rate of 97%-98.5%,
easy to use, without milling .
Item
D mm
D1 mm
H mm
H1 mm
(gms)
CS-1-B
22
18
18
4
4
CS-2x-B
24
19
16
7
6
CS-3-B
26
21
17
7
10
CS-4-B
30
25
18
8
18
CS-4A-B
27
24
22
6
18
CS-5-B
32
26
20
7
40
CS-6-B
36
26
21
9
40
CS-6A-B
40
30
26
13
45
CS-6C-B
40
30
28
8
45
CS-6D-B
39
33
30
8
45
CS-7A-B
40
30
30
11
50
CS-7AL-B
40
31
29
12
50
CS-7AS-B
40
31
34
14
55
CS-7B-B
40
31
32
12
55
CS-7C-B
40
33
30
10
58
CS-8-B
44
34
27
9
60
CS-8A-B
45
35
35
13
62
CS-9-B
51
40
35
15
65
CS-10-B
60
53
30
12
90
CS-11-B
57
48
44
15
105
CS-12-B
80
58
47
17
250
CS-14-B
110
80
70
24
1000
CS-15-B
150
120
130
40
1700
CS-16-B
40
32
30
15
75
CS-PC-B
254
185
162
55
14000
Block Size List | ||||
Size | Block L*W*H (mm) | Cup Dia * Depth (mm) | Cups / Bolck | Weight (g) |
4HB | 48*48*20 | 18*16.5 | 4 | 100 |
6HB | 77*51*20 | 20.5*8 | 6 | 160 |
10HB | 138*60*20 | 22*7 | 10 | 325 |
12HB | 80*60*20 | 14*7 | 12 | 205 |
12HBL | 165*60*20 | 22*7 | 12 | 380 |
14HB | 178*54*20 | 20*7.5 | 14 | 400 |
1. The Ash Cupel should be preheated to a temperature of approximately 900°C prior to use.
2. The sample to be tested should be no more than 1-2 grams in size.
3. The sample should be placed in the Ash Cupel and heated for a period of about 10 minutes.
4. The sample should be examined for changes in colour, texture, and shape.
5. Any residue should be removed from the cupel and placed in a separate container for further analysis.
6. The cupel should be cooled to room temperature and examined for any remaining residue.
7. The cupel should be placed in an appropriate container for disposal.
1. The cupel must be made of bone ash with a maximum ash content of 99.8%.
2. The cupel must have a minimum diameter of 25mm and a maximum diameter of 30mm.
3. The cupel must have a minimum depth of 10mm and a maximum depth of 12mm.
4. The cupel must have an even wall thickness of 1.5mm.
5. The cupel must be precision glazed with a smooth finish.
6. The cupel must be properly fired with a temperature of 1400 degrees Celsius.
7. The cupel must be inspected and tested for quality assurance.
8. The cupel must be packaged in a protective package to prevent damage during transportation.
As a professional industrial ceramic supplier, we have a series of advantages that guarantee our market share in the international trade market.
1.Reliable quality control, complete specifications, support customization of non-standard products.
2.Professional and committed service team.
3.Multiple protection of packaging, secure and reliable.
4.Highly efficient delivery channel, safe and rest-assured.
1.Q: What is a bone ash cupel?
A: A bone ash cupel is a small cup-shaped vessel made of bone ash, used in the process of assaying gold and other precious metals. The cupel absorbs impurities in the metal, leaving behind a purified sample that can be tested for its gold content.
2.Q: How is a bone ash cupel used?
A: The process begins by melting down the gold or other precious metal to be tested. The molten metal is then poured into the cupel and heated until it is completely absorbed. The cupel will absorb any impurities in the metal, leaving behind a purified sample. The sample can then be tested to determine its gold content.
3.Q: What are the benefits of using a bone ash cupel?
A: Using a bone ash cupel is one of the best ways to accurately and efficiently test the gold content of a sample. The cupel is able to absorb any impurities in the metal, allowing for a more accurate testing process. Additionally, bone ash cupels are reusable and require only simple maintenance, making them a cost-effective option for assaying gold and other precious metals.
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