Reactivity Documentation
Metals, Alkali, Very Active |
| mixed with |
Aldehydes |
Summary
- Corrosive: Reaction products may be corrosive
- Flammable: Reaction products may be flammable
- Generates heat: Exothermic reaction at ambient temperatures (releases heat)
- Polymerization hazard: Polymerization reaction may become intense and may cause pressurization
-
May produce the following gases:
- Alcohols
Details
Metals, Alkali, Very Active
is a reactive group.
Aldehydes
is a reactive group.
Reactivity Predictions (for each pair of reactive groups)
Aldehydes
mixed with
Metals, Alkali, Very Active
Metals, Alkali, Very Active
Hazard Predictions
- Corrosive: Reaction products may be corrosive
- Flammable: Reaction products may be flammable
- Generates heat: Exothermic reaction at ambient temperatures (releases heat)
- Polymerization hazard: Polymerization reaction may become intense and may cause pressurization
Acetaldehyde polymerizes rapidly in the presence of trace amounts of metals (Bretherick, L. 1996. Bretherick's Handbook of Reactive Chemical Hazards. Vol. 1, p. 312. Fifth Ed. Urben, P.G., Ed. Butterworth-Heinemann, Boston, MA).
Sodium and sodium-potassium alloy perform stepwise one-electron reductions of aldehydes, creating reactive radical intermediates (Chiu, K.-W. 2005. Potassium. Kirk-Othmer Encyclopedia of Chemical Technology. (Online)). In the presence of proton sources (esp. alcohol solvents), the reaction produces primary alcohols and alkoxides (Bouveault-Blanc reduction) (L. Bouveault and G. Blanc, Comptes rendus. 1903, 136, 1676).
Potential Gas Byproducts
- Alcohols
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