| TANTALUM BOATS/CRUCIBLES
|
Tantalum crucibles for HCL, Br,H2SO4, NaCL, KOH, CL2, HF, NaOH, Hno3, Fatty Acid, Lab Application & Many....
The leading anti-corrosion character, strength at high temperature, outstanding physical mechanical properties of tantalum is ideally suited for reboiling, preheating and condensing of nitric acid combinations of these acids with any other chemicals like aqua regia tantalum equipments are to be made from electron beam melted high purity rod, sheet and tubings.
Because of its high melting point of 5432ºF, tantalum has been widely used in the electronics, nuclear, aerospace and chemicalindustries and in such areas as crucibles, boats, heat shields and others components for vacuum furnace, where heat must be transferred to or from acids and other corrosive fluids and vapours
Tantalum exhibits excellent resistance to most acids, especially hydrochloric, sulfuric, nitric and aqua regia at normal temperature and is also completely resistance to attack by many molten metals, including sodium, lithium, magnesium, potassium and mercury in temperatures up to 1100ºc (2000ºF)
Salts and their solutions generally do not attack tantalum unless they are prone to alkaline hydrolysis or contain fluorine ions, chlorides and bromides such as ferric chloride, mercury and stannous chloride up to 175ºc (350ºF).
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| Standard Dimensions of Crucibles |
| Capacity (ML) |
Low Form (MM) |
Straight Wall (MM) |
|
Top Dia |
Bottom Diameter |
Depth |
Outer Diameter |
Depth |
| 5 |
|
|
|
21 |
19 |
| 10 |
|
|
|
27 |
22 |
| 15 |
36 |
32 |
23 |
33 |
22 |
| 20 |
36 |
32 |
32 |
33 |
23 |
| 25 |
47 |
40 |
23 |
47 |
22 |
| 35 |
47 |
40 |
35 |
47 |
34 |
| 45 |
47 |
40 |
42 |
47 |
41 |
| 55 |
47 |
40 |
42 |
47 |
41 |
| 75 |
51 |
44 |
42 |
47 |
41 |
| 100 |
59 |
53 |
46 |
59 |
45 |
| 250 |
83 |
72 |
60 |
83 |
57 |
| 500 |
102 |
89 |
66 |
104 |
63 |
| 1000 |
152 |
144 |
95 |
127 |
89 |
| 1500 |
152 |
144 |
108 |
152 |
108 |
|
Above size & capacities are approximate
Standard Thickness. 5 to 100 ml :0.5mm
Standard Thickness. 250 to 1500 ml :0.8mm
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|
Tantalum crucibles are standard or special shaped size as per customers deign. However,they are to be made by the process of precious deep draw forming spinning, punch press, forging, CNC precision turning & milling, Welding and fabrication from commercially pure tantalum confirming to ANSI / ASTM B708 and 365, Gr RO5200
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| Corrosion resistance of Tantalum |
| With Molten Metals |
With Refractory Oxides |
| Sodium |
Upto 1200ºc |
Alumina |
Upto 1900ºc |
| Magnesium |
Upto 1150ºc |
Beryila |
Upto 1600ºc |
| Lithium,Potassium,Lead |
Upto 1000ºc |
Magnesia |
Upto 1800ºc |
| Bismuth |
Upto 900ºc |
Zirconia |
Upto 1600ºc |
| Mercury |
Upto 600ºc |
Thoria |
Upto 1900ºc |
| Zinc |
Upto 500ºc |
|
|
| Gallium |
Upto 450ºc |
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