Name White Rare earth polishing powder Batch 20170502
model XGY-557D granularity(D50) 1.95 μm
purity(CeO2/TREO)  75.95% Total amount(TREO) 96.71%
Rare earth impurities (ppm) Non-rare earth impurities (ppm)
La2O3/TREO Nd F⁻ 39500
Pr6O11/TREO <100 CaO 510
Nd2O3/TREO <100 Fe2O3 <100
Sm2O3/TREO <100 Na2O 660
Eu2O3/TREO Nd    
Gd2O3/TREO Nd    
Tb4O7/TREO Nd    
Dy2O3/TREO Nd    
Ho2O3/TREO Nd    
Er2O3/TREO Nd    
Tm2O3/TREO Nd    
Yb2O3/TREO Nd    
Lu2O3/TREO Nd    
Y2O3/TREO <100    

 

 

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