Sample

Species (gāˆ™Lāˆ’1)

Zr4+

Hf4+

Clāˆ’

Fe3+

Ti4+

Si4+

Solution-Nitric médiuma

15.0

0.6

b

-

2.4

0.03

<0.01

2.3

Solution-Hydrochloric médiuma

15.0

0.6

-

b

1.7

0.02

<0.01

1.3

Zr-Hf Zirconite-Nitric medium

20.5

0.4

b

-

0.8

0.6

0.2

2.8