lanthanum

GPTKB entity

Statements (49)
Predicate Object
gptkbp:instance_of gptkb:chemical_compound
gptkbp:abundance_in_seawater 0.0000001% by weight
gptkbp:application gptkb:battery
gptkb:ceramics
gptkb:medical_imaging
gptkb:lighting_system
research and development
nuclear reactors
hydrogen storage
catalytic converters
glass manufacturing
optical instruments
photographic films
gptkbp:category lanthanide
gptkbp:color silvery-white
gptkbp:cooling_system 11.8 W/(m· K)
gptkbp:discovered_by gptkb:Carl_Gustaf_Mosander
gptkbp:discovery_year 1839
gptkbp:ecological_role no known biological role
gptkbp:electronegativity 1.1 (Pauling scale)
https://www.w3.org/2000/01/rdf-schema#label lanthanum
gptkbp:isotopes 57
La-138
La-139
gptkbp:melting_point 3464 ° C
920 ° C
gptkbp:notable_conductors good conductor
gptkbp:occurs_in rare earth minerals
gptkbp:oxidation_states +3
gptkbp:population_density 6.162 g/cm³
gptkbp:related_products lanthanum chloride (La Cl3)
lanthanum fluoride (La F3)
lanthanum hydride (La H2)
lanthanum oxide (La2 O3)
lanthanum carbonate (La2(CO3)3)
lanthanum sulfate (La2(SO4)3)
gptkbp:safety non-toxic
not classified as hazardous
gptkbp:species 0.0005% by weight
gptkbp:structure hexagonal close-packed
gptkbp:symbol La
gptkbp:uses catalysts
optical glass
phosphors
gptkbp:was_a_response_to reacts with water
reacts with acids
oxidizes in air
gptkbp:bfsParent gptkb:Mendeleev's_Periodic_Table
gptkbp:bfsLayer 5