La Formula Lanthanum Metal Silvery Lumps Applied Produce Specialty Alloys

 

Lanthanum is a kind of metallic rare earth element, atomic number 57, atomic weight 138.9055, element name comes from Greek, meaning "hidden".Silver luster, soft texture, density 6.174 g/cm3, melting point 921 ℃, boiling point 3457 ℃;Chemical properties and lively, exposed to the air soon lose metallic luster generated a blue layer of oxide film, but it does not protect the metal, which in turn further oxidation generating white oxide powder.Can and cold water slow action, easy to dissolve in acid, can be a variety of non-metallic reactions.Metal lanthanum is usually stored in mineral oil or rare gases.The content of lanthanum in the crust is 0.00183%, second only to cerium in rare earth elements.Lanthanum has two natural isotopes: lanthanum 139 and radioactive lanthanum 138.

 

CAS Number:7439-91-0
Product Name:Lanthanum
Synonyms:Lanthanum Chips; Lanthanum Foil; Lanthanum Powder; Lanthanum Ingot; Lanthanumingot; lanthanumchips; lanthanumfoil; lanthanumpowder
Molecular Formula:La
Molecular Weight:138.9055
InChI:1/La
EINECS:231-099-0
Appearance:Slugs
Density:6.19
Melting Point:920 ºC