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Lutetium
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feature
Lutetium (Lu) — light silver color plastic is very soft metal, the 71st element in the periodic table. The atomic weight is about 175. It is a rare earth element from a number of lanthanides. Like other rare earth elements in the native form is not found, scattered in the earth’s crust to 0.2 g/t was opened in mineral gadolinite. For the industrial production of chemically pure lutetium is used ion exchange, extraction, fractional crystallization. Restore calcium fluoride LuF3 to the metal. Among the other lanthanides, this metal is the most severe and refractory. Temperature its melting point is almost the same as titanium 1663°C
chemical quality
At normal temperature in air, the Lutetia is covered with a protective oxide film. To react with sulfur, oxygen, Halogens, it starts at t° > 400 °C. Inorganic acids dissolve it with evolution of hydrogen. With hydrochloric acid lutetium forms glority. In the hydrolysis of a soluble salt of the hydroxide of lutetium. The determination of the spectral method percent of an oxide of lutetium, europium, samarium normalizes GOST 23862.3−79.
| Physical quality Lu | |
|---|---|
| Atomic (molar) mass, g/mol | 175 |
| The degree of oxidation | 3 |
| Density [g/cm3] | Of 9.84 |
| The melting temperature t°C | 1663°C |
| Molar volume cm3/mol | 17,8 |
| The thermal conductivity K [W/(m·K)] | 16,4 |
| Heat of evaporation kJ/mol | 402 |
use
The other element alloyed heat-resistant Nickel-chromium alloys to improve their mechanical qualities of adaptability and durability. Thanks to special technology and performance, and widely used modern metallurgy and nuclear energy. Using such materials of new generation have the opportunity to improve technological processes of production and to ensure long term reliable operation of the whole complex of equipment. Lutetium alloys are magnetic materials. This metal has become the Foundation for high-temperature conducting ceramics. The magnetic properties used in the production of media. Oxide Lu2О3 uses of nuclear energy, as a neutron absorber and as activation detector, and also to control the properties of superconducting ceramics.
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High demand for products from alloys of lutetium is determined by the optimal combination of price and quality. A wide range of products and a convenient method of ordering will make a purchase from us as comfortable as possible. Full compliance of all products to requirements of normative documentation and presence of the quality certificates for each type of products guarantees long-lasting reliable performance of the ordered materials. Invariably high quality semi-finished products determines the constant trust of our customers.