Chromium trioxide (CrO3)

Substance: Chromium trioxide.

Also known as: Chromic anhydride Chromium(VI) oxide Chromic acid (misnomer)

Chemspider article about chromium trioxide

Wikipedia article about chromium trioxide

Hazard information danger

Oxidising
Corrosive cat. 1
Toxic cat. 1 - 3
Systemic health hazards
Environment

Hazard statements

  • May cause fire or explosion; strong oxidizer
  • Causes severe skin burns and eye damage
  • May cause an allergic skin reaction
  • Causes serious eye damage
  • Fatal if inhaled
  • May cause allergy or asthma symptoms or breathing difficulties if inhaled
  • May cause genetic defects
  • May cause cancer
  • Suspected of damaging fertility or the unborn child
  • Causes damage to organs through prolonged or repeated exposure
  • Very toxic to aquatic life with long lasting effects

Precautionary statements

  • Obtain special instructions before use.
  • Do not handle until all safety precautions have been read and understood.
  • Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. [As modified by IV ATP]
  • Keep/Store away from clothing/…/combustible materials. [As modified by IV ATP]
  • Take any precaution to avoid mixing with combustibles.
  • Do not breathe dust/fume/gas/mist/vapours/spray.
  • Wash … thoroughly after handling.
  • Do not eat, drink or smoke when using this product.
  • Use only outdoors or in a well-ventilated area.
  • Contaminated work clothing should not be allowed out of the workplace.
  • Avoid release to the environment.
  • Wear protective gloves/protective clothing/eye protection/face protection. [As modified by IV ATP]
  • Wear fire/flame resistant/retardant clothing.
  • [In case of inadequate ventilation] wear respiratory protection. [As modified by IV ATP]
  • Take off contaminated clothing. [As modified by IV ATP]
  • Collect spillage.
  • Store locked up.
  • Dispose of contents/container to … [… in accordance with local/regional/national/international regulation (to be specified)].

Experiments with this reagent