| Answer | Crossword Clue |
|---|---|
| RUST | Ferric oxide |
| ROUGE | Ferric oxide powder. |
| IRONY | Ferric |
| OXIDE | Ferric .. (rust) |
| OXIDE | Ferric .. (Fe203) |
| OXIDE | Ferric ... (rust) |
| OXIDE | Ferric ...: rust |
| OXIDE | Ferric ... (rust component) |
| ETCH | Use ferric chloride |
| FERRATE | Salt of ferric acid. |
| ALBANIA | Country behind the Ferric Portiere. |
