carcinogenic. It is the main example of hexavalent chromium, an environmental hazard. The related chromium(III) derivatives are not particularly dangerous; thus, reductants are used to destroy chromium(VI) samples. Chromium trioxide, being a powerful oxidizer, will ignite organic materials such as alcohols on contact. Images References External links ATSDR Case Studies in Environmental Medicine: Chromium Toxicity U.S. Department of Health and Human Services Chromium Trioxide at The Periodic Table of Videos (University of Nottingham) Reactions with Chromium Trioxide as Oxidizing Agent Acidic oxides Chromium(VI) compounds