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Lanthanum metal

Technical characteristics

Lanthanum is light-silvery metal. It is an element of periodic system (6th period of the 3rd group). Atomic number is 57. It was invented during exploration of «cerite earth». In 1826, Carl Mosander managed to prove that «cerite earth» is impure. There was one more element except for cerium. In 1839, scientist separated this element and named it lanthanum (from Greek — disappear, hide). Nowadays, industrial obtaining of this element starts from separation of crude ore on fines. Firstly, there is separated cerium. Then, there are separated praseodymium, neodymium, and lanthanum by method of extracting. Lanthanum has 3 crystalline models: hexagonal α-lattice (up to 227 °C), cubical β-lattice (up to 861 °C), α-Fe body-centered lattice.

Physical properties of La

Description Identification
Atomic (molal) weight mole/h 138.9
Oxidation rate 3
Density [g/cm3]

6.17
Melting point 920°С
Melting heat kJ/mole 8.5
Heat conductivity K [V/m*K] 13.4
Evaporation heat kJ/mole 402

Application

Lanthanum oxide La3 O3 is used in manufacture of special optical glass for cinema and photographic equipment, astronomical lenses, prisms, electronic micrography. La3 O3 serves as a basis for superconductors of high temperatures along with oxides of yttrium, strontium, barium. Lanthanum itself has got a wide application in electronics, nuclear energetics, manufacture of hydrogen acceptors, metal- hydride and thermo-electric materials. It is applied as a recovering material of rare elements. Plutonium is extracted with a help of lanthanum during reprocessing of nuclear fuel. Lanthanum is added into molten uranium for increasing the weight of plutonium liquid-alloy that comes to the surface along with lanthanum. A capper is soldered for further reprocessing by chemical method.

Types of mill-products

Tungsten bars of EWLa1 group have La3 O3 additives. They are manufactured with a length of not less 500 mm and diameter of 1.5−8 mm. Such electrodes increase hump current and entrainment capacity for 50%. They are much more durable than cerium and thorium. Its primary grind keeps much longer at equilibrium distribution of La3 O3 thought the full length of electrode. Lanthanum salts LaCl3, LaCO3, LaF3, LaSO4 contained in alloys for manufacture of sheets, bars, wire significantly improves workable properties of material.

Lanthanum metal supplier

«Auremo» company proposes to buy goods for the most favorable lanthanum metal price. A wide range of high-quality goods is presented in stock. You can easily buy products in «Auremo» lanthanum metal supplier. Lanthanum metal price depends on order quantity and additional conditions of supply. Quality complies with GOST (all-Union State Standards) and International Standards. If you buy lanthanum metal by wholesale, you will be given special discounts. Our offices located in Moscow, St. Petersburg and cities of Central Europe provide availability of products and efficiency of delivery.

Buy lanthanum metal at a bargain price

«Auremo» lanthanum metal supplier sells rare and refractory metals on the favourable terms. A high selection of lanthanum products and its alloys is presented in stock. Lanthanum metal price depends on order quantity and additional conditions of supply. If you buy lanthanum metal 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.