Cl- Ca2+ Al3+ Sn4+ K
Cl- 1 0 0 0 1
Ca2+ 0 1 0 0 1
Al3+ 0 0 1 0 1
Sn4+ 0 0 0 1 1
TOTAL 9.10-5 10-5 10-5 10-5
Initial low I 5.10-7 5.10-7 5.10-7 5.10-7
Initial high I 5.10-4 5.10-4 5.10-4 5.10-4
10-9 10-9 10-9 10-9
5.10-1 5.10-1 5.10-1 5.10-1