Chemical analysis:  %

Physical Characteristics:

HfO2 + ZrO2 >99.9

Zr           0.46

Al          <0.0040

Ca          <0.0025

Cd         <0.0010

Co         <0.0010

Cr         <0.0010

Cu         <0.0010

Fe         <0.0030

Mg         <0.0020

Mn         <0.0020

Mo         <0.0020

Na         <0.0020

Ni          <0.0030

P           <0.0020

Pb          <0.0020

Sn          <0.0020

Ti          <0.0070

V          <0.0010

Cl-         <1.8 

Buck Density (g/cm3)            0.7

Specific surface area by BET(m2/g) 11.3

Medium agglomerate(um)        0.25

                       <2um  98%

    Loss of Ignition             1.2%