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Hazard Predictions

• Potentially hazardous: May be hazardous but unknown

When combined, strong oxidizers and ketones may react with intensity, as shown in the examples below. However, no specific evidence was found for a hazardous reaction between weak oxidizers and noble metals. Because of the nature of the members of the Weak Oxidizing Agents group we would not expect reaction kinetics to yield hazardous conditions. We urge chemists to perform testing to ensure that hazards do not occur under conditions appropriate to the scenario.

Many ketones, including acetone, methyl ethyl ketone, diethyl ketone, cyclopentanone, and cyclohexanone, form explosive peroxides with H2O2 in acidic solution, some of which are shock and friction sensitive (Bjorklund, G.J. et al. 1950. Trans. Royal Society of Canada, (Sect. III) 44:25).

Acetone forms explosive mixtures with hydrogen peroxide (Monger, J.M. et al. 1961. Journal Chemical and Engineering Data 6(1):23).

Acetone forms explosive mixtures with oxygen, and may spontaneously ignite combustible substances such as acetylene (CISCH. 1976. Chemical Safety Summary 47:33-34).

Methyl ethyl ketone may peroxidize when exposed to oxygen (Mageli, O.L., J.R. Koczynski. 1964. Encyclopedia of Polymer Science and Technology 9:831; Milas, N.A. 1959. Journal of the American Chemical Society 81:5824).