American Elements

 

Lanthanum

LANTHANUM INFORMATION CENTER

PROPERTIES, APPLICATIONS AND RESEARCH

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PROPERTIES OF LANTHANUM

Melting Point 1569°C
Boiling Point 2927°C
Density 3.00 g/cm3
Crystal Structure hcp
Metallic Radius 176 pm
Valency 3
Magnetic Moment 9.6µB

 

LANTHANUM APPLICATIONS

Lanthanum is the first element in the rare earth or lanthanide series.  It is the model for all the other trivalent rare earths.  After cerium, it is the second most abundant of the rare earths.

Lanthanum-rich lanthanide compositions have been used extensively for cracking reactions in FCC catalysts, especially to manufacture low-octane fuel for heavy crude oil.

It is utilized in green phosphors based on the aluminate (La0.4Ce0.45Tb0.15)PO4.

Lanthanide zirconates are used for their catalytic and conductivity properties and lanthanum stabilized zirconia has useful electical and mechanical properties.

It is utilized in laser crystals based on the yttrium-lanthanum-fluoride (YLF) composition.

 

RECENT LANTHANUM RESEARCH PAPERS

 

1. O'Connell M, Norman AK, Huttermann CF, et al.

    Catalytic oxidation over lanthanum-transition metal perovskite materials

     CATAL TODAY 47: (1-4) 123-132 JAN 1 1999

 

2. Heremans JJ, Watts S, Wirth S, et al.

    Grain boundary effects on transport in metalorganic chemical vapor deposition-grown,      Ca doped lanthanum manganite

     J APPL PHYS 83: (11) 7055-7057 Part 2 JUN 1 1998

 

3. Moewes A, Stadler S, Winarski RP, et al.

     Core-hole induced charge transfer and Coster-Kronig enhanced fluorescence at the 3d        threshold of lanthanum studied by resonant inelastic scattering

     PHYS REV B 58: (24) RI 595 I-RI5954 DEC 15 1998

 

4.  Katayama Y, Hiramatsu. K, Miura T, et al.

     Electrochemical intercalation of lanthanum intographite in LiCl-KCI eutectic

      DENKI KAGAKU 66: (12) 1318-1319 DEC 1998

 

5.  Paulik SW, Baskaran S, Armstrong TR

     Mechanical properties of calcium- and strontium-substituted lanthanum chromiteJ

      MATER SCI 33: (9)2397-2404 MAY 1 1998

 

6.  Brady DJ, Schweizer T, Wang J, et al.

     Mininium loss predictions and measurements in gallium lanthanum sulphide based        glasses and fibre

     J NON-CRYST SOLIDS 242: (2-3) 92-98 DEC 1998

 

7.  Sammes NM, Keppeler FM, Nafe H, et al.

    Mechanical properties of solid-state synthesized strontium- and magnesium-doped      

     lanthanum gallate

     J AM CERAM SOC 81: (12) 3104-3108 DEC 1998

 

8.  Lee HJ, Park HM, Ryu H, et al.

     Interfacial structure of disordered-ordered domain boundaries in lanthanum-doped       barium magnesium niobate

     J AM CERAM SOC 81: (12) 3337-3340 DEC 1998

 

9.  Das RN, Pathak A, Pramanik P

     Low temperature preparation of nanocrystalline lead zirconate titanate and lead           

     lanthanum zirconate titanate powders using triethanolamine

     J AM CERAM SOC 81: (12) 3357-3360 DEC 1998

 

10.  Andersen EK, Andersen IGK, Norby P, et. al.

       Kinetics of oxidation of fuel cell cathode materials lanthanum strontium   

       Manganates(Ill)(IV) at actual working conditions. In situ powder diffraction studies

        J SOLID STATE CHEM 141: (1) 235-240 NOV 15 1998

PRODUCT CATALOG French Operations Submicron & Nanopowder Tolling Ultra High Purity Sputtering Target Crystal Growth Rod, Plate, Powder, etc. Foil