五氧化二钽

Ta2O5                                 >99.99%  
杂质含量Impurity Contained (ppm  max)
Al                                    3
Mo                                    2
As                                    1
Na                                    5
B                                     1
Nb                                    15
Bi                                    2
Ni                                    3
Ca                                    5
Pb                                    3
Cl                                    10
Sb                                    5
Co                                    1
Si                                    10
Cr                                    3
Sn                                    1
Cu                                    3
Ti                                    1
F                                     50
V                                     1
Fe                                    5
W                                     3
K                                     5
Zr                                    1
Mg                                    2
L.O.I.0.                              1
Mn                                    2