Chromium(VI) oxide, also known as chromium trioxide, is a chemical compound. Its chemical formula is CrO3.It has chromium in its +6 oxidation state. It also has oxide ions. It is a solid used in cleaning glass.

| Properties of Chromium VI Oxide | |
| Name | Chromium (IV) Oxide |
| Chromium VI Oxide Also Known as | Chromium Trioxide, Chromic acid, Chromic anhydride |
| Chromium VI Oxide Appearance and odour | Dark red granular solid and odourless |
| Chromium VI Oxide Chemical Formula | CrO3 |
| Chromium VI Oxide Melting Point | 197 °C |
| Chromium VI Oxide Boiling Point | 250 °C |
| Chromium VI Oxide Density | 2.7 g/cm3 |
| Chromium VI Oxide Molar Mass | 99.993 g/mol |
| Chromium VI Oxide Solubility in Water | Soluble |