Fire Assay Cupels

We are a supplier of premium quality magnesite cupels. We are currently offering: 6A, 7A, 7X, 7AS, 8A, 9A and many more

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Product Description

High quality magnesite is the majoritary component of  magnesia cupels. 

As a rule of thumb, magnesia cupels have a superior quality and offer many advantages:

  • Great mechanical strength, and are not affected by atmospheric conditions (not hygroscopic). . 

  • The prill or bead does not adhere to the fire assay cupel surface, 

  • When using magnesia cupels, the assay have a reduced tendency to freeze.  

  • No cracking or spiting, and the beads do not attach to the fire assay cupel surface.

  • Magnesia cupels provide security and quickly absorb great amounts of litharge without cracking or pitting. 

  • Our magnesia cupels allow to reduce the Cupellation temperature and time, resulting in minimal losses, higher accuracy and better yields.

  • Perfect uniformity of Quality of cupels 

  • Quality and performance are continuously improved


Magnesia cupels swiftly absorb 70% of their weight in litharge (PbO) at 980ºC without leaking. 


Magnesia cupel data

Size

A

B

C

D

E

F

mm

mm

mm

mm

mm

mm

4A

22

27

20

7.5

24

6

4AS

22

27

20

8

24

9

6A

26

40

30

6

30

12

7

22

39.5

29

6.5

31.2

11

7A

32

40

30

12

30

12

7AL

28.5

39.7

30

6

31.2

12.3

7AS

34

40

30

14

30

12

8

27.1

44.3

34.6

9

34.2

8.5

8A

35

45

37

13

38

13

9A

34

51

39

14

40

15


Packing & Shipping

Packed in carton with pallets


Service

High level of Quality Control at each stage of production

  • Packaged to your requirement

  • Prompt international shipping

  • Consultation available as needed.


Packaging pictures:


Phone

+86-15231139385
E-mail:sales@hanhuachem.com

Wechat/Whatsapp number

0086-15231139385

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Road 1, Hongjiang Chemical Industrial Park,Huaihua city, Hunan, China

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