5
XVIII
2 7 . .
. 5 . 4
2 , 2 :
5 . 2
,
. 4 (2 ) :
3. . - : Zn (II) , Al (III) , Sn (II, IV), As (III, V), Cr (III), Sb (III, V), Bi (III), Mn (II), Fe (II, III), g(II)
3 . 2
.
7-9- , 2- 4 5
, 6 2
2 (1 4 )
8 , 1
2 .
9 1