- CrSO4CrSO4{C}{r}{S}{O}_{4}
- Cr(OH)3Cr(OH)3{C}{r}\left({{{O}{H}}}\right){3}
- Cr2O3Cr2O3{C}{r}_{2}{O}_{3}
- Cr2(OH)3Cr2(OH)3{C}{r}_{2}\left({{{O}{H}}}\right){3}_