Chemicals which are highly toxic or other chemicals whose containers have been opened must be placed in unbreakable secondary containers. Oxidizing Agents These can react at ambient temperatures when stored near or in contact with reducing materials. Also oxidizing agents may initiate or promote combustion in other materials causing fire. Storage areas should be kept cool and well ventilated. These materials are chemically unstable to varying degrees.
Organic peroxides are among the most hazardous chemicals handled in a laboratory.
Many organic compounds, including the following types, are known to form extremely dangerous peroxides. Other oxidizing agents include chlorates, perchlorates, nitrates and permanganates. Chromic Acid Dichromate in sulfuric acid and other strong acid or oxidizer cleaning solutions should not be used for general cleaning purposes due to liberation of extremely toxic chromyl chlorides. Reactive Metals Waste sodium and other alkali metals, hydrides of alkali metals and phosphorus are extremely hazardous and should be handled with caution. If in doubt of handling procedures contact your supervisor or the University Safety Office.