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Read Moreitem no. :
CS-7AColor :
BeigdePort :
Any ports of Chinalead date :
1-7 daysSize: : Full size
Material: : Magnesium Oxide
Free sample: : Available
Place of Origin: : Hunan (China)
MgO Cupels Features
1. Magnesia (MgO) cupels are highly porous, allowing for maximum absorption of precious metals during the cupellation process.
2. Magnesia cupels are chemically stable, making them ideal for use in a variety of high-temperature applications.
3. Magnesia cupels are highly durable and can withstand temperatures up to 1,400°C (2,552°F).
4. Magnesia cupels are non-toxic and non-reactive, making them safe to use in a variety of laboratory settings.
5. Magnesia cupels are reusable, so they can be used multiple times without compromising the quality of the cupellation process.
Magnesia Crucible Applications
1. Magnesia cupels are used to separate gold and silver from lead and other impurities during the fire assay process.
2. Magnesia cupels are also used to separate other precious metals, such as platinum and palladium, from base metals.
3. Magnesia cupels are used to determine the composition of metal alloys and to measure the purity of gold and silver.
4. Magnesia cupels are also used to measure the melting and boiling points of metals.
5. Magnesia cupels are used to measure the expansion of metals when heated.
6. Magnesia cupels are used to determine the hardness of metals.
7. Magnesia cupels are used in the analysis of metal samples for research and development purposes.
Magnesia Cupel Propeties
1.Magnesia: ≥95%
2.Silica, Silicon dioxide: 0-5%
3.Property: High refractoriness(1100 centigrade degrees),rapid absorption(70%),and recovery rate of 97%-98.5%,
easy to use, without milling .
Cupel Specifications
Name
Item
D mm
D1 mm
H mm
H1 mm
(gms)
magnesium oxide cupel
CS-1
22
18
18
4
4
magnesium oxide cupel
CS-2x
24
19
16
7
6
magnesium oxide cupel
CS-3
26
21
17
7
10
magnesium oxide cupel
CS-4
30
25
18
8
18
magnesium oxide cupel
CS-4A
27
24
22
6
18
magnesium oxide cupel
CS-5
32
26
20
7
40
magnesium oxide cupel
CS-6
36
26
21
9
40
magnesium oxide cupel
CS-6A
40
30
26
13
45
magnesium oxide cupel
CS-6C
40
30
28
8
45
magnesium oxide cupel
CS-6D
39
33
30
8
45
magnesium oxide cupel
CS-7A
40
30
30
11
50
magnesium oxide cupel
CS-7AL
40
31
29
12
50
magnesium oxide cupel
CS-7AS
40
31
34
14
55
magnesium oxide cupel
CS-7B
40
31
32
12
55
magnesium oxide cupel
CS-7C
40
33
30
10
58
magnesium oxide cupel
CS-8
44
34
27
9
60
magnesium oxide cupel
CS-8A
45
35
35
13
62
magnesium oxide cupel
CS-9
51
40
35
15
65
magnesium oxide cupel
CS-10
60
53
30
12
90
magnesium oxide cupel
CS-11
57
48
44
15
105
magnesium oxide cupel
CS-12
80
58
47
17
250
magnesium oxide cupel
CS-14
110
80
70
24
1000
magnesium oxide cupel
CS-15
150
120
130
40
1700
magnesium oxide cupel
CS-16
40
32
30
15
75
magnesium oxide cupel
CS-PC
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
MgO Crucible Test Standards
1. Verify that the correct cupels are used for the test.
2. Ensure that the cupels are clean and free from any impurities.
3. Heat the cupels in the furnace at a temperature of 1100 to 1200 degree centigrade.
4. Take out the cupels and place the sample in the cupel.
5. Put the cupel back in the furnace and heat it for another 10 to 15 minutes.
6. Take out the cupel and observe the color and the appearance of the sample.
7. Record the result and compare it with the standard.
Crucible OEM Requirements
1.The OEM requirements for MgO cupels may include the size, shape, thickness, and other qualities of the cupels.
2.The customer may also specify the desired grade of MgO for the cupel, such as high-grade, medium-grade, or low-grade MgO.
3.Additionally, the customer may require the cupel to be treated with a specific coating or have a specific finish.
4.Depending on the application, the customer may also require that the cupel be fireproof, insulated, and/or heat resistant.
Packing and Shipping
Why Choose US
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.
FAQ
1.Q: What are magnesia (MgO) cupels?
A: Magnesia (MgO) cupels are ceramic-like disks made from magnesia (MgO) and other ingredients which are used to assay precious metals. The cupels are heated in a furnace to a temperature that is hot enough to melt the metal sample, while not melting the cupel itself. The cupel absorbs the impurities in the sample, leaving behind the pure metal which can then be weighed and its purity determined.
2.Q: How are magnesia (MgO) cupels made?
A: Magnesia (MgO) cupels are made by mixing the magnesia with other ingredients including alumina, silica, and borax. The mixture is then formed into a dough-like consistency, which is then pressed into a round disc shape. The cupels are then dried and fired in a furnace at a temperature of approximately 1700°C.
3.Q: What are the benefits of using magnesia (MgO) cupels?
A: Magnesia (MgO) cupels are highly absorbent, meaning they are able to absorb more impurities than other types of cupels. The high temperature of the furnace allows for more complete melting of the sample, and the cupels are able to withstand the heat without melting. The cupels are also relatively inexpensive and easy to use.
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