Tullius brand, chemical structure
General characteristics
Thulium is a chemical element of group III of table D. I. Mendeleyev, in which he is designated as Tm. The atomic weight 168,9. This is a plastic silvery metal of the lanthanide series, rare item. Its content in the lithosphere of 2.7·10-5%, the richest Tullius euxenite, xenotime, monazite. Celebrate the opening of the thulium belongs to two scientists. In 1879 Swedish chemist Cleve was able to isolate from a mixture of oxides — oxide of thulium. In its pure form, this element was obtained in 1911 by Richardson, who determined its basic physico-chemical quality. The name of the element named after the legendary Northern Islands of Thule.
Physico-chemical properties
Belongs to the group of heavy lanthanides, the density of 9.32 g/cm3, it is malleable, very high-tech metal, t° melting point reaches about 1545 °C, t° boiling point of 1947 °C. Easily soluble in inorganic acids.
| Atomic number Tm | Atomic (molar) mass, g/mol | The degree of oxidation | Density [g/cm3] | The melting temperature t°C | The boiling point of t°C | The heat of fusion kJ/kg |
|---|---|---|---|---|---|---|
| No. 69 | 168,9 | 2, 3 | 9,32 | 1545°C | 1947°C | 232 |
Use
Borat thulium is widely used in nuclear energy. In the production of ions of thulium lasers are used for excitation radiation in the infrared part of the spectrum with a wavelength of 1910 nm. Pair this metal used in lasers with tunable frequency. This is a valuable thermoelectric material. It is also used in magnetic media. Monotelluride thulium has a high efficiency and a significant E. D. s is the basis of thermal converters, it regulates the properties of the semiconductor lead telluride. The isotope thulium-170 is used in metal flaw detectors and portable x-ray machines. Is developed its use as fuel for nuclear boilers.
Supply
Certified supply rentals on the basis of Tullius. Etc. rare earth and nonferrous metals it comes in the form of a circle, wires, sheets, foils, strips. The specification included data on the percentage composition and mechanical properties of products. We can easily buy in bulk any semi-finished products for large-scale production. We also work with retail buyers. A high level of service and speed of service are the face of our company.
Buy at best price
On the website LLC «Electrocentury-steel» reflects the most current information on the acquisition of the rental of the rare metals today. Our best managers are ready to provide qualified advice on any current issues. Sell semi-finished products of rare and non-ferrous at a competitive price. The products are manufactured on the most modern equipment and meets the quality requirements of Russian state standard and international quality standards. Regular customers receive a discount system of discounts.
