Lanthanum

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Lanthanum topic overview

The analysis highlights Characters, History and Applications as prominent areas in the source structure around Lanthanum.

Related topics: 174
Source areas: 8
Connected nodes: 186
Extracted relationships: 158
Concept neighborhoods: 42
Bridge connections: 186

What this topic covers Research coverage

Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.

Applications · 45 topics

Characteristics · 39 topics

Overview · 28 topics

Compounds · 19 topics

Occurrence and production · 18 topics

History · 16 topics

Biological role · 8 topics

Precautions · 1 topics

Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

137La: synth
138La: 0.0890%
139La: 99.9%
140La: synth
Appearance: silvery white
at T (K): 2005

Explore all related topics Closing gaps

Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.

History

Occurrence and production

Neodymium
Lime Lime (material)
Magnesia Periclase
Samarium
Phosphate
Silicate
Carbonate
Promethium
Thorium
Hydrogen fluoride
Silicon tetrafluoride
Sodium hydroxide
Ammonium oxalate
Oxalates Oxalate
228 Ra Radium-228
Fractional crystallization Fractional crystallization (chemistry)
Ion-exchange
Ammonium chloride

Applications

Mantles Gas mantle
Carl Auer von Welsbach
Zirconium oxide Zirconium dioxide
Atzgersdorf
Nickel–metal hydride batteries Nickel–metal hydride battery
Mischmetal
Intermetallic Intermetallics
NiMH
Toyota Prius
Pyrophoric
LaB 6 Lanthanum hexaboride
Vacuum tubes Vacuum tube
Electrons Electron
Electron microscopes Electron microscope
Hall-effect thrusters Hall-effect thruster
Lanthanum trifluoride
ZBLAN
Lanthanum bromide Lanthanum(III) bromide
Lanthanum chloride Lanthanum(III) chloride
Neutrons
Gamma rays
Motion picture Film
Glass
Camera
Telescope
Lenses Lens (optics)
Refractive index
Sintering
Silicon nitride
Zirconium diboride
Steel
Malleability
Molybdenum
Radioactive
Triflates Lanthanide trifluoromethanesulfonates
Petroleum cracking
Catalysts Catalyst
Radiometric dating
Shire Pharmaceuticals
End-stage kidney disease
Fluoride ion-selective electrodes Fluoride selective electrode
Horseradish peroxidase
Electron-dense tracer Electron density
Molecular biology
Phoslock

Biological role

Precautions

Phosphorus

Bibliography

Greenwood, Norman N. Norman Greenwood
Pergamon Press
ISBN ISBN (identifier)

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

How Lanthanum connects Entity context

The extracted context around Lanthanum shows recurring relationship patterns in the source. For example, Lanthanum → Although, Axel Erdmann, Axel Fredrik Cronstedt, Bastnäs, Berzelius, Between, Carl Gustaf Mosander, Carl Scheele, Ceres, Ceria, Finally, Germany, He, Hisinger, In, Jöns Jacob Berzelius, Karolinska Institute, Låven, Martin Heinrich Klaproth, Mosander Another extracted example is Lanthanum → Among, Europium, For, However, II, In, LaO, Some, The, This, Thus, Xe. Use these groups to spot repeated connection types before inspecting the individual relationships.

Top relations

related to history · 25

Lanthanum → Although, Axel Erdmann, Axel Fredrik Cronstedt, Bastnäs, Berzelius, Between, Carl Gustaf Mosander, Carl Scheele, Ceres, Ceria, Finally, Germany, He, Hisinger, In, Jöns Jacob Berzelius, Karolinska Institute, Låven, Martin Heinrich Klaproth, Mosander

related to Physical · 12

Lanthanum → Among, Europium, For, However, II, In, LaO, Some, The, This, Thus, Xe

related to Prices · 12

Lanthanum → April, EUR/mt, FOB China, Institute, IREESM, Lanthanum Metal, Lanthanum Oxide, Rare Earths Elements, September, Strategic Metals, The, USD/Mt

related to Chemical · 11

Lanthanum → As, Hence, II, III, In, La, La3, OH, Some, Therefore, This

related to Occurrence and production · 11

Lanthanum → Bastnäsite, Ce, Despite, Earth's, La, La-dominant, MIIICO3F, MIIIPO4, Rare, The, The La3

related to Compounds · 8

Lanthanum → Due, La, La3, LaCl, LaOCl, Sc, The, When

is a · 6

Lanthanum → 28th most abundant element in the Earth's crust, chemical element, cofactor for the methanol dehydrogenase of the methanotrophic bacterium Methylacidiphilum fumariolicum SolV, least volatile of the lanthanides, soft metal, strongest and hardest base among the rare earth elements

has application · 6

Lanthanum → Actinophor, Atzgersdorf, Carl Auer, Modern, The, Welsbach

related to Isotopes · 6

Lanthanum → All, It, La, Naturally, Ta, The

related to Biological role · 5

Lanthanum → Fosrenol, GABA, La3, The, While

Important terminology

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

la elements used cerium rare-earth oxide compounds lanthanides metal electrons rare first carbon lanthanide element high stable carbonate chemical yttrium

Lanthanum relationships Subject–Predicate–Object triples

TTTA extracted 158 structured relationships around Lanthanum. Examples in this analysis include Lanthanum → 137La → synth and Lanthanum → 138La → 0.0890%. The table shows each extracted connection, where it came from and its confidence.

Subject	Predicate	Object	Confidence	Src
Lanthanum	137La	synth	1.00	infobox
Lanthanum	138La	0.0890%	1.00	infobox
Lanthanum	139La	99.9%	1.00	infobox
Lanthanum	140La	synth	1.00	infobox
Lanthanum	Appearance	silvery white	1.00	infobox
Lanthanum	at T (K)	2005	1.00	infobox
Lanthanum	Atomic number (Z)	57	1.00	infobox
Lanthanum	Atomic radius	empirical: 187 pm	1.00	infobox
Lanthanum	Block	f-block	1.00	infobox
Lanthanum	Boiling point	3737 K (3464 °C, 6267 °F)	1.00	infobox
Lanthanum	Brinell hardness	350–400 MPa	1.00	infobox
Lanthanum	Bulk modulus	α form: 27.9 GPa	1.00	infobox
Lanthanum	CAS Number	7439-91-0	1.00	infobox
Lanthanum	Covalent radius	207±8 pm	1.00	infobox
Lanthanum	Crystal structure	α form: double hexagonal close-packed (dhcp) (hP4)	1.00	infobox
Lanthanum	Density (at 20° C)	6.145 g/cm3	1.00	infobox
Lanthanum	Discovery	Carl Gustaf Mosander (1838)	1.00	infobox
Lanthanum	Electrical resistivity	α, poly: 615 nΩ⋅m (at r.t.)	1.00	infobox
Lanthanum	Electron configuration	[Xe] 5d1 6s2	1.00	infobox
Lanthanum	Electronegativity	Pauling scale: 1.10	1.00	infobox
Lanthanum	Electrons per shell	2, 8, 18, 18, 9, 2	1.00	infobox
Lanthanum	Group	f-block groups (no number)	1.00	infobox
Lanthanum	Heat of fusion	6.20 kJ/mol	1.00	infobox
Lanthanum	Heat of vaporization	400 kJ/mol	1.00	infobox
Lanthanum	Ionization energies	1st: 538.1 kJ/mol	1.00	infobox
Lanthanum	Ionization energies	2nd: 1067 kJ/mol	1.00	infobox
Lanthanum	Ionization energies	3rd: 1850.3 kJ/mol	1.00	infobox
Lanthanum	Lattice constants	a = 0.37742 nm c = 1.2171 nm (at 20 °C)	1.00	infobox
Lanthanum	Magnetic ordering	paramagnetic	1.00	infobox
Lanthanum	Main isotopes	.mw-parser-output .isotopes-table{text-align:center;width:100%;border-collapse:collapse;margin:0;padding:0}.mw-parser-output .isotopes-table-headers>:not(:first-child){padding:0…	1.00	infobox

Related concept clusters Concept neighborhoods

The concept neighborhoods around Lanthanum bring nearby vocabulary together. In this analysis, examples include Used, Oxide and Elements. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

Lanthanum
- Used
- Oxide
- Elements
- Rare-earth
- Lanthanides
- Among
- Electrons
- Form
- First
- Metal
- Compounds
- Cerium
lanthanum
- Used
- Oxide
- Elements
- Rare-earth
- Lanthanides
- Among
- Electrons
- Form
- First
- Metal
- Compounds
- Cerium
chemical element
- Europium
- Number
- Configuration
- Electrons
- Isotopes
- Structure
- Cerium
- Element
- Form
- Lanthanides
- Minerals
- Scandium
cerium
- Europium
- Chemical
- Lanthanide
- Rare-earth
- Minerals
- Scandium
- Element
- La
- Lanthanides
- Oxide
- Lanthanum
- Number
cerium nitrate
- Europium
- Chemical
- Lanthanide
- Rare-earth
- Minerals
- Scandium
- Element
- La
- Lanthanides
- Oxide
- Lanthanum
- Number
carbon arc lamps
- Compounds
- Form
- Hydrogen
- Elements
- Rare-earth
- Europium
- Number
- Scandium
- Carbonate
- Configuration
- Gas
- Isotopes
lanthanum carbonate
- Used
- Oxide
- Elements
- Europium
- Minerals
- Scandium
- Rare-earth
- Lanthanides
- Form
- Among
- Electrons
- First
lanthanum(iii) oxide
- Used
- Oxide
- Scandium
- Yttrium
- Elements
- Rare-earth
- Lanthanides
- Among
- Electrons
- Form
- First
- Metal

Connections between topic areas Semantic bridges

For Lanthanum, one of the stronger structural bridges in this analysis connects Lanthanum with Applications. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3

Lanthanum — Applications · splits 141 ⟂ 46

Lanthanum — Characteristics · splits 147 ⟂ 40

Lanthanum — Overview · splits 158 ⟂ 29

Lanthanum — Compounds · splits 167 ⟂ 20

Lanthanum — Occurrence and production · splits 168 ⟂ 19

Lanthanum — History · splits 170 ⟂ 17

Lanthanum — Biological role · splits 178 ⟂ 9

Lanthanum — Bibliography · splits 183 ⟂ 4

Map overview Semantic statistics

Lanthanum

Nodes187

Edges186

Triples158

Avg. degree1.99

Density0.010695

Components1

Source & methodology

TTTA analyzes the structure around Lanthanum to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as Characters, History & Applications, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — Lanthanum · EN edition · Analysis: TopicsToTalkAbout