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    • Tantalum - Crucible

      Tantalum was discovered in 1802 by A.G. Ekeberg in Uppsala, Sweden. Tantalum is a shiny, silvery coloured metal which is heavy, dense, malleable and ductile when pure. It is found in small quantities in minerals (generally in conjunction with niobium), and is isolated by conversion to the oxide and then the fluoro-complex, K₂TaF₇, from which the pure metal is obtained by electrolysis. Tantalum is extremely corrosion resistant due to the formation of an oxide film, and is also resistant to acid attack (with the exception of HF). It will react with fused alkalis and a variety of non-metals at elevated temperatures. Tantalum can be used as a replacement for platinum for laboratory apparatus which has to have good corrosion resistance, and the metal is also used within the chemical industry for similar reasons. The fluids in the human body do not react with the metal and, hence, it is used for surgical implants without rejection. Other applications include the use of tantalum carbide in cemented carbides which are used as cutting tools. The pure metal is used in the electronics industry in the manufacture of various types of electronic equipment (e.g. rectifiers, capacitors, lamp filaments, etc.). Tantalum is also used in vacuum systems as it has a high absorption rate for residual gases. It is also used as an alloying element with, for example, nickel and molybdenum, to produce alloys which have good corrosion resistance, strength and ductility.

      Crucible - A vessel in which other materials may be heated or melted, usually at high temperatures.

    7 results

    Product TA00-CB-000105 5ml Cylindrical Tantalum Crucible 19mm H Product Shape Cylindrical Capacity 5ml Outside Diameter 21mm Height 19mm Quantity 1 Piece
    Product TA00-CB-000110 10ml Cylindrical Tantalum Crucible 22mm H Product Shape Cylindrical Capacity 10ml Outside Diameter 27mm Height 22mm Quantity 1 Piece
    Product TA00-CB-000125 25ml Cylindrical Tantalum Crucible 22mm H Product Shape Cylindrical Capacity 25ml Outside Diameter 47mm Height 22mm Quantity 1 Piece
    Product TA00-CB-000135 35ml Cylindrical Tantalum Crucible 29mm H Product Shape Cylindrical Capacity 35ml Outside Diameter 47mm Height 29mm Quantity 1 Piece
    Product TA00-CB-000145 45ml Cylindrical Tantalum Crucible 34mm H Product Shape Cylindrical Capacity 45ml Outside Diameter 47mm Height 34mm Quantity 1 Piece
    Product TA00-CB-000155 55ml Cylindrical Tantalum Crucible 41mm H Product Shape Cylindrical Capacity 55ml Outside Diameter 47mm Height 41mm Quantity 1 Piece
    Product TA00-CB-000180 100ml Cylindrical Tantalum Crucible 45mm H Product Shape Cylindrical Capacity 100ml Outside Diameter 59mm Height 45mm Quantity 1 Piece
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