| Carbonate | Colour of residue on cooling |
|---|---|
| Zinc carbonate | Yellow when hot, white when cold |
| Lead carbonate | Yellow |
| Copper carbonate | Black |
| Carbonate | Colour of residue on cooling |
|---|---|
| Zinc carbonate | Yellow when hot, white when cold |
| Lead carbonate | Yellow |
| Copper carbonate | Black |