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Hazard Predictions

• Potentially hazardous: May be hazardous but unknown

When combined, strong oxidizers and organic sulfonates or phosphonates may react with intensity, as shown in the examples below. However, no specific evidence was found for a hazardous reaction between weak oxidizers and organic sulfonates or phosphonates. 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.

Mixtures of CrO3 and hexamethylphosphoramide can explode if the CrO3 is crushed before use (Cardillo, G. et al. 1976. Synthesis 6:394-396).

Interaction of dinitrogen tetraoxide and DMSO may be violent or explosive. (Buckley, A., J. Chem. Educ., 1965, 42, 674).

Mixtures of dimethylsulfoxide with some oxidizing salts such as aluminum perchlorate, sodium perchlorate, and iron (III) nitrate are powerful explosives. (Martin, D., Hauthal, H.G., Dimethylsulfoxid, Berlin, Akademie Verlag, 1971, p. 435).

IF5 (a strong halogenating reagent) reacts violently with dimethyl sulfoxide (Lawless, E.M. 1969. Chemical and Engineering News 47(13):8, 109).