Specifications

Tantalum pentoxide
Grade: FTa2O5-048, FTa2O5-045, FTa2O5-04,FTa2O5-04G...
Application: For making optical glass, monocrystals.

High-purity tantalum pentoxide

          Grade:         FTa2O5-048  FTa2O5-045       

   Main Content, %,             

By substraction         99.998       99.995

(exlusive of Cl, F)

                        Nb      0.0001       0.0002

                        Al        0.0001       0.0002

                        As       0.00001     0.00005

                        B         0.00005     0.00005

                        Bi         0.00005    0.0001

                        Ca       0.0001       0.0003

                        Cl         0.0003      0.0005

    Impurity       Co        0.00001     0.00005

    content,       Cr         0.00005     0.0001

        %,            Cu        0.00005     0.0001

       max           F           0.0015      0.002
                        Fe       0.0001       0.0002

                        K         0.0001      0.0003

                        Mg       0.0001      0.0002

                        Mn       0.00005    0.0001

                        Mo       0.00001     0.0001

                        Na       0.0001       0.0005

                        Ni        0.00005      0.0001

                        Pb       0.00005      0.0003

                        Sb       0.0001        0.0005

                        Si        0.0003        0.0005

                        Sn       0.00005      0.0001

                        Ti        0.0001        0.0001

                        V         0.00005      0.00005

                        W        0.00002       0.0002

                        Zr        0.00001       0.00005

Ignition loss: the actual value of ignition loss is provided for each lot ignited at 850°C for an hour.