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Hazard Predictions

• Flammable: Reaction products may be flammable
• Generates gas: Reaction liberates gaseous products and may cause pressurization
• Generates heat: Exothermic reaction at ambient temperatures (releases heat)
• Intense or explosive reaction: Reaction may be particularly intense, violent, or explosive

Oxides of alkali metals and alkaline earth metals are basic and react with water to form metal hydroxides. Some of these reactions, such as those of barium oxide and cesium oxide, are strongly exothermic at room temperature (Urben, P.G. 1995. Bretherick's Handbook of Reactive Chemical Hazards, 5th Edition. Oxford: Butterworth-Heinemann. Vol. 2, pp. 93, 1390).