CAS: 1333-82-0 EC No: 215-607-8 MDL No: MFCD00010952 RTECS: GB6650000 UN No: UN1463; Haz Class: 5.1 (6.1,8); Packing Group: II Crystalline Molecular Formula: CrO₃ MW: 99.99 Melting Point: 196° (decomposes) Density (g/mL): 2.7