Praseodymium oxide 


 Chemical properties 
 ? Yellow-green or dark brown amorphous powder or block there moisture in the air can absorb carbon dioxide dissolved in acid, insoluble in water. 
 ? Density: 7.07 
 ? Melting Point: 2300 ° C 
 Quality standards 
 1. 4N 2. 3N 3. 99.9% 4. 99.5% 5. 99% 

 REE>% PREFIX = O purity>% burn vector (1000 ℃ 1h) <% non-rare earth impurities <% 
 Calcium oxide, silica chloride under 

 99 99.9 1 0.005 0.01 0.01 0.02 
 99 99.5 1 0.005 0.02 0.01 0.05 
 99 99.0 1 0.01 0.05 0.02 0.05 

 Use 
 ? 1 mainly used in ceramic glazes, praseodymium yellow pigments, raw materials for rare earth permanent magnet alloy 

 ? 2 and Nd co-workers used to make the goggles of glass blowing, glass blowing filtered yellow light generated in the process. Fusion made with magnesium engine with high strength aircraft alloy. Mich metal also containing 5% praseodymium. 
 Hazardous nature 
 Safety instructions 26-37/39 
 WGK Germany 1 
 RTECS TU1480000 
 Hazard Symbols Xi 
 Risk 36/37/38 
 Storage? Sealed 


 Yttrium oxide (Y2o3) 99.9% 280 元 / kg 99.99% 330 yuan / kg 
 Lanthanum oxide (La2o3) 99.9% 120 元 / kg 99.99% 150 yuan / kg 
 Cerium oxide (Ceo2) 99.9% 130 元 / kg 99.99% 320 yuan / kg 
 Praseodymium oxide (Pr6on) 99.9% 500 元 / kg 99.99% 700 yuan / kg 
 Neodymium oxide (Nd2o3) 99.9% 750 元 / kg 99.99% 1000 yuan / kg 
 Samarium oxide (Sm2o3) 99.9% 150 元 / kg 99.99% 260 yuan / kg 
 Europium oxide (Eu2o3) 99.9% 13500 元 / kg 99.99% 17500 yuan / kg 
 Gadolinium oxide (Gd2o3) 99.9% 320 元 / kg 99.99% 450 yuan / kg 
 Terbium oxide (Tb4o3) 99.9% 13500 元 / kg 99.99% 17000 yuan / kg 
 Dysprosium oxide (Dy2o3) 99.9% 8500 元 / kg 99.99% 11500 yuan / kg 
 Holmium oxide (Ho2o3) 99.9% 2800 元 / kg 99.99% 3500 yuan / kg 
 Erbium oxide (Er2o3) 99.9% 750 元 / kg 99.99% 1200 yuan / kg 
 Thulium oxide (Tm2o3) 99.9% 6500 元 / kg 99.99% 9500 yuan / kg 
 Ytterbium oxide (Yb2o3) 99.9% 350 元 / kg 99.99% 500 yuan / kg 
 Lutetium oxide (Lu2o3) 99.9% 12000 元 / kg 99.99% 14500 yuan / kg