density of tantalum
The density of Tantalum in 285 units and reference information
Tantalum weighs 16.65 gram per cubic centimeter or 16 650 kilogram per cubic meter, i.e. density of tantalum is equal to 16 650 kg/m³;
A gram per cubic meter (g/m³) is a derived metric SI (System International) measurement unit of density used to measure volume in cubic meters in order to estimate weight or mass in grams
Radioactivity is the act of emitting radiation spontaneously by an atomic nucleus that, for some reason, is unstable.
It's The Element Tantalum
Density: 16.4 grams per cubic centimeter
Phase at Room Temperature: Solid
Boiling Point: 5731 K (5458°C or 9856°F)
Tantalum is pronounced as TAN-te-LEM.
tantalum is primarily obtained from the minerals columbite ((Fe, Mn, Mg)(Nb, Ta)2O6), tantalite ((Fe, Mn)(Ta, Nb)2O6) and euxenite ((Y, Ca, Er, La, Ce, U, Th)(Nb, Ta, Ti)2O6).
Tantalum is a strong, ductile metal that is nearly immune to chemical attack at room temperatures.
It can be drawn into a fine wire that is used to evaporate metals, such as aluminum.
It has a high melting point and is frequently used as a substitute for platinum, which is more expensive.
Tantalum is used to make components for chemical plants, nuclear power plants, airplanes, and missiles.
Tantalum does not react with bodily fluids and is used to make surgical equipment.
Tantalum also does not irritate the body and is used to make surgical sutures as well as implants, such as artificial joints and cranial plates.
Tantalum is alloyed with steel to increase steel's ductility, strength, and melting point.
Tantalum pentoxide (Ta2O5), one of the tantalum's compounds, is a dielectric material and is used to make capacitors.
It is also used to make a glass with a high index of refraction that is used in camera lenses.
A composite consisting of tantalum carbide (TaC) and graphite is one of the hardest materials known and is used on the cutting edges of high-speed machine tools.
Estimated Crustal Abundance: 2.0 milligrams per kilogram
Estimated Oceanic Abundance: 2×10-6 milligrams per liter
Number of Stable Isotopes: 1 ( View all isotope data )
Ionization Energy: 7.89 eV
Tantalum (Ta) - Chemical properties
Tantalum is a shiny, silvery metal that is soft when is pure.
It is almost immune to chemical attack at temperatures below 150 C.
Tantalum is virtually resistant to corrosion due to an oxide film on its surface.
Tantalum (Ta) - Properties
It belongs to group 5, periodic number 6 of the periodic table.
Its atomic number is 73.
Tantalum is a silvery metal that is soft in its pure form.
It is a strong and ductile metal and at temperatures below 150°C (302°F), this metal is quite immune to chemical attack.
It is known to be resistant to corrosion as it displays an oxide film on its surface.
This metal is rarely used as an alloying agent as it makes metals brittle with an exception of steel, in which case tantalum increases the ductility, strength, and melting point of steel.
Although quite rare, tantalum is obtained from minerals such as tantalite, columbite, and euxenite.
Tantalum, Physical and Chemical
Tantalum is a transition metal like the other members of the group. tantalum has principal oxidation states +2 and +5.
Tantalum is closely related to niobium with which they are associated in their ores that are mainly complex oxides, (Nb, Ta)2O5.
Relative abundance in Earth’s crust, %2.1 × 10–4
The heat of vaporization at 3,273 K, kJ mol–178.1
Specific heat capacity at 20°C, J mol–1 K–125.41
Linear coefficient of thermal expansion at 20°C, K–16.5 × 10–6
Thermal conductivity at 20°C, W m–1 K–154.4
Specific electrical conductivity at 20°C, Ω–1 cm–10.081
Ta is the sixth-period element in the VB family, characterized by its high density, extremely high melting point, and excellent resistance to all acids except hydrofluoric at ordinary temperatures. with an atomic number of 73, relative atomic mass of 180.95, a density of 16.6 g/cm3, and a melting point of about 3,000℃
Specific heat at 273 K: 139.1 J kg−1 K−1
Thermal conductivity at 800 K: 66.6 W m−1 K−1
Thermal conductivity at 1600 K: 113 W m−1 K−1
Thermal conductivity at 2800 K: 85.8 W m−1 K−1
Mean linear thermal expansion coefficient at 293 K: 6.6×10−6 K−1
Mean linear thermal expansion coefficient at 2030 K: 12.9×10−6 K−1
Electrical resistivity at 273 K: 135 nΩ m
Electrical resistivity at 1073 K: 585 nΩ m
Electrical resistivity at 1773 K: 710 nΩ m
Electrical resistivity at 2273 K: 870 nΩ m
Elastic modulus at 293 K: 186 GPA
Elastic modulus at 1073 K: 175 GPA
The separation of niobium and tantalum powders is accomplished by dissolving the ore or slag in hydrofluoric acid to produce hydrofluotantalic acid and hydrofluoniobic acid.
These can be separated through chemical extraction, which takes advantage of their different solubilities in particular acid solutions.
Once separated, the hydrofluotantalic acid is reacted with potassium to produce K2TaF7.
This salt is reacted with molten sodium to produce pure tantalum and water-soluble potassium and sodium salts.
The tantalum can be sintered, but the sintered bars are usually melted for further purification and to produce ingots of higher density.
Electron beam melting is the most common melting practice, but vacuum arc remelting is also used, especially in the production of alloys, since it provides better mixing.
Because tantalum is ductile at room temperature, it can be processed without heating the workpiece.
This provides a great advantage over the tungsten and molybdenum processes described above since working these metals at high temperatures always results in some loss of material through oxidation.
The first steps in working the metal are usually forging operations at room temperature.
Forging can break up the large cast grain size and begin to shape the material.
This process can be followed by rolling, swaging, or wire drawing.
Recrystallization of the worked material usually occurs above 1273 K, and appropriate anneals must be performed during processing to prevent overwork of the material.
The largest use of tantalum is for capacitors.
The capacitor is made of tantalum oxide with a tantalum wire used to connect the capacitor to the circuit.
Because of its excellent corrosion resistance, tantalum is often used as a sheet liner for acid containment tanks.
It is also used in shell and tube heat exchangers.
Another important use of tantalum is in the defense industry.
Its high density allows it to be used for various types of penetrators.
Alloying of the material with tungsten increases its density and strength.
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