Lanthanum information, including Technical Data, Safety Data and its high purity properties, research, applications and other useful facts are discussed below. Scientific facts such as the atomic structure, ionization energy, abundance on Earth, conductivity and thermal properties are included.
 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 is available as metal and compounds with purities from 99% to 99.999% (ACS grade to ultra high purity); metals in the form of foil, sputtering target, and rod, and compounds as submicron and nanopowder.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 and lanthanum strontium manganites are used for their catalytic and conductivity properties and lanthanum stabilized zirconia has useful electrical and mechanical properties. Lanthanum's ability to bind with phosphates in water creates numerous uses in water treatment. It is utilized in laser crystals based on the yttrium-lanthanum-fluoride (YLF) composition.
Lanthanum metal is predominantly used in the production of mischmetal and steel additives but is also important in the production of hydrogen storage alloys for nickel-metal hydride (NiMH) batteries.
Lanthanum facts, including appearance, CAS #, and molecular formula and safety data, research and properties are
available for many specific states, forms and shapes on the product pages listed to the left. Elemental or metallic forms include pellets, rod, wire and granules for evaporation source material purposes. Nanoparticles and nanopowders provide ultra high surface area which nanotechnology research and recent experiments demonstrate function to create new and unique properties and benefits.
 Oxides are available in forms including powders and dense pellets for such uses as optical coating and thin film applications. Oxides tend to be insoluble. Fluorides are another insoluble form for uses in which oxygen is undesirable such as metallurgy, chemical and physical vapor deposition and in some optical coatings. Lanthanum is available in soluble forms including chlorides, nitrates and acetates. These compounds are also manufactured as solutions at specified stoichiometries.
Lanthanum is a Block F, Group 3, Period 6 element. The number of electrons in each of Lanthanum's shells is 2, 8, 18, 18, 9, 2 and its electronic configuration is [Xe] 5d1 6s2. In its elemental form lanthanum 's CAS number is 7439-91-0. The lanthanum atom has a radius of 187.pm and it's Van der Waals radius is 200.pm. Lanthanum and compounds of Lanthanum are somewhat toxic.
All elemental metals, compounds and solutions may be synthesized in ultra high purity (e.g. 99.999%) for laboratory standards, advanced electronic, thin fillm deposition using sputtering targets  and evaporation materials, metallurgy and optical materials and other high technology applications. Information is provided for stable (non-radioactive) isotopes. Organo-Metallic Lanthanum compounds are soluble in organic or non-aqueous solvents. See Analytical Services for information on available certified chemical and physical analysis techniques including MS-ICP, X-Ray Diffraction, PSD and Surface Area (BET) analysis.
Lanthanum was first discovered by Carl Mosander in 1839.
The name Lanthanum originates from the Greek word Lanthaneia which means 'To lie hidden'.
 lanthane |
 Lanthan |
 lantanio |
 Lantânio |
 lantano |
 Lantan |
Abundance. The following table shows the abundance of lanthanum and each of its naturally occurring isotopes on Earth along with the atomic mass for each isotope.
| Isotope |
Atomic Mass |
% Abundance on Earth |
| La-138 |
137.907107 |
0.09 |
| La-139 |
138.906348 |
99.91 |
The following table shows the abundance of Lanthanum present in the human body and in the universe scaled to parts per billion (ppb) by weight and by atom:
| |
Typical Human Body |
Universe |
| by Weight |
no data |
2 ppb |
| by Atom |
no data |
0.02 ppb |
Safety Data and Biological Role. The safety data for lanthanum metal, nanoparticles and its compounds can vary widely depending on the form. For potential hazard information, toxicity, and road, sea and air transportation limitations, such as DOT Hazard Class, DOT Number, EU Number, NFPA Health rating and RTECS Class, please see the specific material or compound referenced in the left margin. Lanthanum compounds have no biological role.
Ionization Energy. The ionization energy for lanthanum (the least required energy to release a single electron from the atom in it's ground state in the gas phase) is stated in the following table:
| 1st Ionization Energy |
538.10 kJ mol-1 |
| 2nd Ionization Energy |
1067.14 kJ mol-1 |
| 3rd Ionization Energy |
1850.34 kJ mol-1 |
Conductivity. As to lanthanum 's electrical and thermal conductivity, the electrical conductivity measured as to electrical resistivity @ 20 ºC is 57 μΩcm and its electronegativities (or its ability to draw electrons relative to other elements) is 1.1. The thermal conductivity of lanthanum is 13.5 W m-1 K-1.
Thermal Properties. The melting point and boiling point for lanthanum are stated below. The following chart sets forth the heat of fusion, heat of vaporization and heat of atomization.
| Heat of Fusion |
10.04 kJ mol-1 |
| Heat of Vaporization |
402.1 kJ mol-1 |
| Heat of Atomization |
431.29 kJ mol-1 |
Recent Research & Development for LanthanumIntestinal pseudo-obstruction secondary to persistent constipation due to lanthanum carbonate.
Camarero-Temiño V, Mercado-Valdivia V, Hijazi-Prieto B, Abaigar-Luquin P.
Nefrologia. 2012 Jan 27;32(1):129. doi: 10.3265/Nefrologia.pre2011.Nov.11191. English, Spanish. No abstract available.
PMID:
22294019
[PubMed - as supplied by publisher]
Chlorination of Lanthanum Oxide.
Gaviría JP, Navarro LG, Bohé AE.
J Phys Chem A. 2012 Jan 25. [Epub ahead of print]
PMID:
22280490
[PubMed - as supplied by publisher]
Dipyridyl ß-diketonate complexes and their use as metalloligands in the formation of mixed-metal coordination networks.
Burrows AD, Mahon MF, Renouf CL, Richardson C, Warren AJ, Warren JE.
Dalton Trans. 2012 Jan 26. [Epub ahead of print]
PMID:
22278306
[PubMed - as supplied by publisher]
Multifunctional lanthanum tetraphosphonates: Flexible, ultramicroporous and proton-conducting hybrid frameworks.
Colodrero RM, Olivera-Pastor P, Losilla ER, Aranda MA, Leon-Reina L, Papadaki M, McKinlay AC, Morris RE, Demadis KD, Cabeza A.
Dalton Trans. 2012 Jan 25. [Epub ahead of print]
PMID:
22278089
[PubMed - as supplied by publisher]
Biosorption and desorption of lanthanum(III) and neodymium(III) in fixed-bed columns with Sargassum sp.: Perspectives for separation of rare earth metals.
Oliveira RC, Guibal E, Garcia O.
Biotechnol Prog. 2012 Jan 24. doi: 10.1002/btpr.1525. [Epub ahead of print]
PMID:
22275117
[PubMed - as supplied by publisher]
Mid-infrared spectral broadening in an ultrafast laser inscribed gallium lanthanum sulphide waveguide.
McCarthy JE, Bookey HT, Psaila ND, Thomson RR, Kar AK.
Opt Express. 2012 Jan 16;20(2):1545-51. doi: 10.1364/OE.20.001545.
PMID:
22274497
[PubMed - in process]
Redetermination of LaZn(5) based on single crystal X-ray diffraction data.
Oshchapovsky I, Zelinska O, Rozdzynska-Kielbik B, Pavlyuk V.
Acta Crystallogr Sect E Struct Rep Online. 2012 Jan 1;68(Pt 1):i1. Epub 2011 Dec 3.
PMID:
22259311
[PubMed - in process]
Novel LaBO(3) hollow nanospheres of size 34±2nm templated by polymeric micelles.
Sasidharan M, Gunawardhana N, Luitel HN, Yokoi T, Inoue M, Yusa SI, Watari T, Yoshio M, Tatsumi T, Nakashima K.
J Colloid Interface Sci. 2011 Dec 28. [Epub ahead of print]
PMID:
22257959
[PubMed - as supplied by publisher]
Lanthanum Carbonate Reduces Urine Phosphorus Excretion: Evidence of High-Capacity Phosphate Binding.
Pennick M, Poole L, Dennis K, Smyth M.
Ren Fail. 2012 Jan 17. [Epub ahead of print]
PMID:
22250993
[PubMed - as supplied by publisher]
Effect of Lanthanum on Rooting of In Vitro Regenerated Shoots of Saussurea involucrata Kar. et Kir.
Guo B, Xu LL, Guan ZJ, Wei YH.
Biol Trace Elem Res. 2012 Jan 13. [Epub ahead of print]
PMID:
22246792
[PubMed - as supplied by publisher]
Fabrication, Characterization, and Application of a Composite Adsorbent for Simultaneous Removal of Arsenic and Fluoride.
Jing C, Cui J, Huang Y, Li A.
ACS Appl Mater Interfaces. 2012 Jan 25. [Epub ahead of print]
PMID:
22235839
[PubMed - as supplied by publisher]
Gas-phase lanthanide chloride clusters: relationships among ESI abundances and DFT structures and energetics.
Rutkowski PX, Michelini MC, Gibson JK.
Phys Chem Chem Phys. 2012 Feb 14;14(6):1965-77. Epub 2012 Jan 6.
PMID:
22227857
[PubMed - in process]
Enhanced electrochemical properties of fluoride-coated LiCoO2 thin films.
Lee HJ, Kim SB, Park YJ.
Nanoscale Res Lett. 2012 Jan 5;7(1):16. [Epub ahead of print]
PMID:
22221488
[PubMed - as supplied by publisher]
La(5)Zn(2)Sn.
Oshchapovsky I, Pavlyuk V, Dmytriv G, Chumak I, Ehrenberg H.
Acta Crystallogr Sect E Struct Rep Online. 2011 Nov 1;67(Pt 11):i65. Epub 2011 Oct 22.
PMID:
22219730
[PubMed - in process]
Lanthanum chloride bidirectionally influences calcification in bovine vascular muscle smooth cells.
Zhao WH, Gou BD, Zhang TL, Wang K.
J Cell Biochem. 2011 Dec 28. doi: 10.1002/jcb.24049. [Epub ahead of print]
PMID:
22213182
[PubMed - as supplied by publisher]
The Intramolecular Rearrangement of Phosphinohydrazides [R'(2)P-NR-NR-M] ? [RN-PR'(2)-NR-M]: General Rules and Exceptions. Transformations of Bulky Phosphinohydrazines (R-NH-N(PPh(2))(2), R = tBu, Ph(2)P).
Kornev AN, Sushev VV, Panova YS, Belina NV, Lukoyanova OV, Fukin GK, Ketkov SY, Abakumov GA, Lönnecke P, Hey-Hawkins E.
Inorg Chem. 2012 Jan 16;51(2):874-81. Epub 2011 Dec 30.
PMID:
22208524
[PubMed - in process]
Medicare Part D: challenges for dialysis patients. Part 1.
Smith S, Witten B, Paykin C, Weiner S, Chianchiano D, St Peter WL.
Nephrol News Issues. 2011 Nov;25(12):38-40, 42, 44-5.
PMID:
22204167
[PubMed - indexed for MEDLINE]
Nanocrystalline Brookite with Enhanced Stability and Photocatalytic Activity: Influence of Lanthanum(III) Doping.
Perego C, Wang YH, Durupthy O, Cassaignon S, Revel R, Jolivet JP.
ACS Appl Mater Interfaces. 2012 Jan 17. [Epub ahead of print]
PMID:
22201282
[PubMed - as supplied by publisher]
The light-sensitive conductance of melanopsin-expressing Joseph and Hesse cells in amphioxus.
Pulido C, Malagón G, Ferrer C, Chen JK, Angueyra JM, Nasi E, Gomez Mdel P.
J Gen Physiol. 2012 Jan;139(1):19-30.
PMID:
22200946
[PubMed - in process]
Preparation and characterization of La(III) encapsulated silica gel/chitosan composite and its metal uptake studies.
Gandhi MR, Meenakshi S.
J Hazard Mater. 2012 Feb 15;203-204:29-37. Epub 2011 Nov 28.
PMID:
22197561
[PubMed - in process] |
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