Iodide method of purification of raw materials get the most metal of high purity 99.8% Hf. Used in nuclear energy, optics, metallurgy, space industry, research laboratories of solid state physics.
GOST 22517−77, Hf >99.8
|Atomic (molar) mass, g/mol||178,49|
|Oxidation||4, 3, 1|
|Density [g/cm3]||For 13, 31|
|The melting temperature t°C||2233°C|
|The boiling point of t°C||4603 °C|
|The thermal conductivity K [W/(m·K)]||23|
|Heat of evaporation kJ/mol||575|
Use. Nuclear power
Production of special ceramics, glass, control rods of nuclear boilers.
Alloying of heat-resistant steel.
The manufacture of multilayer x-ray astronomical mirrors, strands of fiber optics, night vision devices.
Low work function of electrons allows the hafnium cathodes high-power electron guns, vacuum tubes and thermionic generators effectively allows small work output of electrons (3,53 eV).
The fabrication of electrodes for welding of low carbon steel in an atmosphere of argon, CO2, where electrodes of this type turned out to be four times more efficient than tungsten.
Supplier Evek GmbH offers to buy ideny hafnium, the price is optimal in this segment of the rental. Full compliance with modern quality standards. Offer buy ideny hafnium, from specialized warehouses supplier Evek GmbH with delivery to any city.
To buy, best price
We offer ideny hafnium, price is determined by the technological features of production without the inclusion of additional costs. You can order products in non-standard settings. We have the best ratio of price and quality for the entire range of products. In the segment of rare earth metals company Evek GmbH — best supplier. Timely delivery is provided by offices in the cities of Eastern Europe.