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Praseodymium metal

General characteristics

Praseodymium (Pr) is an element of the 3rd group of periodic chemical system. Atomic number is 59, atomic weight is 140.9. It relates to a group of lanthanides. It was invented by Austrian chemist Carl Auer von Welsbach in 1885. He managed to divide didymium (rare-earth metal that was previously taken for one element) into neodymium and praseodymium. A name of the last one is derived from Greek and means «twin» and «light-green». Content of this element in earth crust constitutes 9 g/t. It is obtained out of mixture of rare-earth elements. Praseodymium concentrates with other lightweight lanthanides (including neodymium) at extracting, chromatographic separating. After this, it is separated from others by electrolysis or metallic-thermal method at a temperature of 850 °C.

Physical properties of Pr

Description Identification
Atomic (molal) weight mole/h 140.9
Atomic number 59
Density [g/cm3]

7
Melting point 903.8°С
Oxidation rate 4,3
Heat conductivity K [V/m*K] 12.5
Melting heat kJ/mole 11.3

Chemical properties

Praseodymium slowly oxidized n air. However, it can get inflamed at a powerful heating. By doing so, it forms a mixture of 3 or 4 — valent oxide. After firing of praseodymium in atmosphere of H2 or CH4, there is obtained Pr2 O3 oxide. Under a pressure of 10 MPa in O2 atmosphere, there is formed dioxide PrO2.

Application

Praseodymium is used along with neodymium in manufacture of infra-red lasers with wave length of 1.05 µm and magnetic alloys. PrO2 oxide can impart a whitish-green color to a glass. Praseodymium mono-telluride in small quantities is used for regulation of resistant properties, electromotive force, strength of thermo-electric alloys on a basis of rare-earth elements with a coefficient of thermal electromotive force of 55 µV/K. Praseodymium alloy with germanium and silicon is superconducting material. Application of praseodymium in electric-vacuum devices allows increasing the efficiency of cathodes and magnetic cores. This metal is much-requested in medicine, manufacture of ceramics and for alloying of steel. Praseodymium salts improve process control of nuclear-magnetic resonance. Available mill-products: wire, rod, sheet.

Praseodymium metal supplier

«Auremo» praseodymium metal supplier offers to buy goods by wholesale. A wide range of grades is presented in stock. They comply with GOST and International Standards of quality. Praseodymium ingot is always in stock. You can buy products for affordable praseodymium metal price from supplier. Buy praseodymium metal right now! Praseodymium metal price is privileged for wholesale buyers. By purchasing products in «Auremo» company, you discover a really reliable partner.

Buy praseodymium metal at a bargain price

«Auremo» praseodymium metal supplier sells rare and refractory metals on the favourable terms. A high selection of praseodymium mill-products and its alloys is presented in stock. Praseodymium metal price depends on order quantity and additional conditions of supply. If you buy praseodymium metal by wholesale you will be given special discounts. Our managers are always ready to lend a knowledgeable assistance. A large assortment will not leave you without a choice. All products are certificated and delivered in the shortest terms.