NH₄H₂PO₄

(NH₄)₂HPO₄

NH₄Cl

Ni (eq)

0.2

0

0

0.292

0.4

0

0

0.491

2.4

0

0

1.018

3.2

0

0

1.047

4.0

0

0

1.054

4.8

0

0

1.125

6.4

0

0

1.197

8.2

0

0

1.368

10

0

0

1.546

4

2

8

0.305

10

0

20

0.864

30

0

20

1.502

20

10

20

0.256