Chromium Trioxide
Synonyms: Chromic acid, polymer-supported; Chromic anhydride; Chromium Oxide; dihydroxy(dioxo)chromium; hydroxy-(hydroxy-dioxo-chromio)oxy-dioxo-chromium; chromyl oxygen(-2) anion
- Molecular formula: CrO₃
- CAS No.: 1333-82-0
- EINECS No.: 215-607-8
- Execution standard: GB/T1610-1999
- Package: 50kg/Lead drum hermatically-sealad
Chromium trioxide technical data:
| Items | Premium Grade | Grade A | Qualified |
| Appearance | Purple red flakes | ||
| Chromium trioxide（CrO₃）％ ≥ | 99.7 | 99.5 | 99 |
| Water insoluble matter ％ ≤ | 0.02 | 0.05 | 0.1 |
| Sulphate（in SO4）％ ≤ | 0.06 | 0.15 | 0.2 |
| Sodium （Na）％ ≤ | 0.05 | – | – |
Storage: Store in a cool, dry, and well ventilated warehouse. The storage temperature shall not exceed 30 ℃, and the relative humidity shall not exceed 80%. The packaging must be sealed to prevent moisture. It should be stored separately from flammable materials, reducing agents, active metal powders, and edible chemicals, and avoid mixing storage. The storage area should be equipped with suitable materials to contain leaked materials.
Application: Mainly used for electroplating, electrolytic extraction of high-purity chromium metal, and also used in industries such as organic dyes, synthetic rubber, oil refining, catalysts, etc.