Samaria physical and mechanical properties. Application.
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Technical characteristics of samarium
Rare metal is light gray in the group of lanthanides, similar to lead. Atomic number 62, Obtained from a samarskite mineral, monazite sand. metal-thermal or electrolytic method. This is a fairly active metal. Easily soluble in acids, burns in the air. It forms a nitride with nitrogen. With hydrogen — hydrides, with carbon — carbide, with silicon — silicides, with boron forms borides.
| Chemical symbol | Sm |
| Atomic mass g / mol | 150.36 |
| Degree of oxidation | +3, +2 |
| Density [g / cm3] | 7,520 |
| Melting point t ° C | 1350 ° K |
| Boiling point t ° C | 2064 ° K |
| Heat of evaporation kJ / mol | 165 |
Application
Tensor-sensitive and thermoelectric materials. Used in color displays. In an alloy with cobalt, it forms powerful permanent magnets. In the alloy with Co, Zr, Hf, Fe, Cu, a very high level of coercive force and residual induction is achieved. Has a wide cross section for neutron capture, inhibits atomic decay. Unlike other elements (cadmium, boron), «does not burn out» in the reactor, but forms isotopes with a high degree of neutron capture.
Storage
In closed warehouses or under a canopy, where adequate protection against mechanical and other damages is provided.
Delivery, price
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