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Tantalum is a chemical element; it has symbol Ta and atomic number 73. It is named after Tantalus, a figure in Greek mythology. [11] Tantalum is a very hard, ductile, lustrous, blue-gray transition metal that is highly corrosion-resistant.
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Tantalum is dark (blue-gray), [71] dense, ductile, very hard, easily fabricated, and highly conductive of heat and electricity. The metal is renowned for its resistance to corrosion by acids ; in fact, at temperatures below 150 ° C tantalum is almost completely immune to attack by the normally aggressive aqua regia .
The tantalum–tungsten alloys are characterized by their high melting point and the tension resistance. The properties of the final alloy are a combination of properties from the two elements: tungsten, the element with the highest melting point in the periodic table, and tantalum which has high corrosion resistance. [1] [2]
The mineral group tantalite [(Fe, Mn)Ta 2 O 6] is the primary source of the chemical element tantalum, a corrosion (heat and acid) resistant metal.It is chemically similar to columbite, and the two are often grouped together as a semi-singular mineral called coltan or "columbite-tantalite" in many mineral guides.
"In addition to the high-grade lithium results up to 4.74 Li 2 0 over 15 meters encountered and reported recently, these strong tantalum grades from the program entrench the Pakeagama Lake ...
June 2024) (Learn how and when to remove this message) In electrochemistry, a valve metal is a metal which passes current in only one direction. Usually, in an electrolytic cell , it can function generally as a cathode , but not generally as an anode because a (highly resistive) oxide of the metal forms under anodic conditions. [ 1 ]
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