Zirconium basic carbonate

SPEC

ITEM

ZBC- I

ZBC- II

ZBC- III

ZBC- IV

ZrO2 +HfO2

38-40%

38-40%

38-40%

38-40%

Fe2O3

0.002%max

0.002%max

0.002%max

0.002%max

SiO2

0.02% max

0.02% max

0.02% max

CaO

0.05%max

0.05% max

0.05% max

TiO2

0.01% max

0.01% max

Na2O

0.002% max

0.002% max

0.002% max

SO4

0.01% max

1.5%max

0.15% max

0.025% max

CO2

5.5%min 

6-8%

6-8%

P2O5

0.15%max

Cl

0.02%max

1%max

0.15%max

0.05%max

NH4

0.01%max

PH

7.0min

3.5-4.5

3.5-4.5