Table 1.
Fe2+ | ∑Fe | Mg | Ti | Ca | K | Mn | Zn | Ni | Cr | |
---|---|---|---|---|---|---|---|---|---|---|
(wt%) | (ppm) | |||||||||
Waste FeSO4 | 9.2 (a) | 17.9 (a) | 5.97 | 11,544 | 1322 | 718 | 513 | 404 | 392 | <dl (b) |
Purified FeSO4 | 14.2 (a) | 16.2 (a) | 0.68 | 20 | 347 | 64 | 189 | 205 | 38 | <dl (b) |
(a) The content of iron ions was determined by manganometric titration; (b) detection limit.