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Physicochemical properties of the sample after water washing.
| pH | w (total Cr)/(mg/kg) | w [Cr (VI)]/(mg/kg) | w (Cr)/(mg/kg) | ||||
|---|---|---|---|---|---|---|---|
| Soluble | Acid soluble | Reducible | Oxidizable | Residual | |||
| 11.74 ± 0.04 | 1662.25 ± 65.45 | 1431.40 ± 41.29 | 1072.85 ± 54.65 | 347.25 ± 11.26 | 187.24 ± 4.56 | 156.68 ± 8.69 | 34.01 ± 5.93 |
