性狀 不溶于水，易溶于無機酸，生成相應的鹽類，導電性良好，在600°C時的導電性是Pr2O3的一千萬倍。    

備注: 以上描述，僅作參考，并不表示您收到的產品，與此項描述完全相符，產品的出廠標準，請參見質量標準。

質量標準    

99.999% metals basis:

外觀Appearance                                 Black powder
X-射線衍射分析X-Ray Diffraction         Conforms to Structure
純度Purity                                        ≥99.999% Based On Trace Metals Analysis
鐠pr (titration with complexometric)      82.0% - 83.0%
總金屬雜質Total metallic impurities      20ppm by ICP Atomic emission

99.9% metals basis:

外觀Appearance                                 Black powder
X-射線衍射分析X-Ray Diffraction         Conforms to Structure
純度Purity                                        ≥99.9% Based On Trace Metals Analysis
鐠pr (titration with complexometric)      80.7%-85.7%
總金屬雜質Total metallic impurities      2000ppm by ICP Atomic emission

50nm 球形，99.5%:

外觀appearance                                Brown to black powder
pr (complexometric titration)               80.7%-85.7%
純度Purity                                       ≥99.5% Based On Trace Metals Analysis
總金屬雜質Total metallic impurities     2500ppm by ICP Atomic emission
ICP assay                                        confirms praseodymium component
粒徑particle size                              <200 nm (BET)  
測量measurements                             < 50 nm (XRD)

貯存

用途 用作陶瓷釉，鐠黃顏料和稀土永磁合金的原料(Dark brown powder, insoluble in water and soluble in mineral acids)。

聯合國編號

Risk： R36/37/38-

Safety : S26- S37/39-

Hazard : Xi -