Lanthanum Properties, Molecular Formula, Applications - WorldOfChemicals

Lanthanum Properties

Lanthanum

Description

 

Lanthanum is a chemical element. It is found in some rare-earth minerals, usually in combination with cerium and other rare earth elements. Lanthanum compounds have numerous applications as catalysts, additives in glass, carbon lighting for studio lighting and projection, ignition elements in lighters and torches, electron cathodes, scintillators, and others. Lanthanum carbonate was approved as a medication against renal failure.

Chemical Properties

Appearance Silvery White Solid
Atomic Number 57
Atomic Weight 138.905 g/mol
Block f
Boiling Point 3464 °C
CAS Number 7439-91-0
Crystal Structure Hexagonal
Density 6.162 g/cm3
Electron Configuration 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 5s2 4d10 5p6 5d1 6s2
Ionization Energy 538.1 KJ/mol
Melting Point 920 °C
Oxidation State 3,2
Period 6
Symbol La
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