Lanthanum metal 

 Cas No. 7439-91-0 
 Formula La 
 Molecular weight of 138.91 
 Alias ??Lanthan 

 Quality standards 
 Content of rare earth RE,% ≥ 99.5 
 Rare-earth purity La / RE,% ≥ 99.99 
 Lanthanum rare earth impurities RE C. A. Ppm: 
 Of (Ce + Pr + of Nd + Sm + Y) / RE ≤ 100 
 Non-rare earth impurities in Non-RE C. A. Ppm: 
 Fe ≤ 200 
 Si ≤ 200 
 Al ≤ 500 
 Ca ≤ 100 
 Mg ≤ 100 
 C ≤ 200 
 Mo ≤ 200 
 O ≤ 300 

 Project lanthanum ingots, 99.5% 
 Appearance of the Appearance gray ingots 
 ICP: Confirms Lanthanum Component Confirmed 
 Trace Rare Earth Trace Rare Earth Analysis ≤ 2000.0 ppm 
 Purity Purity (Based on Rare Earth Analysis) ≥ 99.5% 

 A 99.99% metals basis 
 ICP Major Analysis Confirms Lanthanum Component 
 Rare earth impurities Trace Rare Earth Analysis ≤ 200.0 ppm 
 Purity Purity ≥ 99.99% Based On Rare Earth Analysis 

 Traits metal spindles or powder, fresh cross-section was silver-gray, susceptible to oxidation in air. Must be preserved in paraffin or mineral oil. Mainly used in steel and nonferrous metal additive, for hydrogen storage materials, processing and other rare earth metals the reductant. 
 Boiling point: 3464 ℃ 
 Melting point: 920 ℃ 
 Density: 6.19 
 Storage of vacuum filled with argon, liquid paraffin overlying airtight packaging 
 The purpose for the special steel, nonferrous metal alloys. Hydrogen storage materials, additives or alloying elements can also serve as preparation of other rare earth metals the reductant.