Diethyl Ether Peroxide Former
Ether diethyl fumarate 3 methoxy 1 butyl acetate bis 2 methoxyethoxy.
Diethyl ether peroxide former. These chemicals must be stabilized or decontaminated and discarded within 3 months of. Inhibitor free chemicals should be purchased in septum capped bottles and stored under inert gas. The solvents most commonly used in the laboratory solvents such as diethyl ether tetrahydrofuran cyclohexene glycol ethers decalin and 2 propanol are shown in group b of the previous section. Friction shock or concentration can cause an explosion.
Class d potential peroxide forming chemicals. Peroxide forming chemicals should be stored in their original manufacturer s container whenever possible. Diethyl ether hydroperoxide and its condensation products are blamed for the explosive organic peroxides that slowly form upon exposure of diethyl ether to ambient air and temperature conditions. Example peroxide forming chemicals table 1 severe peroxide hazard chemicals that can spontaneously decompose becoming explosive after exposure to air without concentration.
Diethyl ether hydroperoxide can be formed by. Even with less than 30 ppm of peroxide if a very large volume of ether is distilled to dryness then a noticeable level of peroxide could potentially still build up. All peroxide forming chemicals will be labelled to indicate the date of receipt and a. Use and storage of peroxide forming solvents.
Best practices with peroxide forming chemicals storage. Therefore it is extremely important that this procedure be followed regarding the identification handling storage and disposal of peroxide forming chemicals. May form peroxides but cannot be clearly categorized in class a b or c. Ethers are the most commonly used peroxide formers at wcm such as tetrahydrofuran dioxane diethyl ether isopropyl ether.
Diethyl ether ether 2 pentanol. Many solvents can form shock sensitive peroxides over time. Diethyl ether and tetrahydrofuran are two of the more common peroxide forming chemicals used today. Refer to appendix a for a list of typical peroxide formers found at wcm and guidance on safe storage and testing frequency.
Purchase diethyl ether in metal cans where available the metal can also inhibit peroxide formation. Form explosive peroxide crystals. This is very important in the case of diethyl ether because the iron in the steel containers that the material is shipped in acts as a peroxide inhibitor. Ethylene glycol ether acetates glyme 1 phenylethanol.
Peroxide crystals may form on the.