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Hazard Predictions

• Corrosive: Reaction products may be corrosive
• 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
• Toxic: Reaction products may be toxic

Aluminum and CFCs can spark if subject to impact, posing a fire hazard (Armed Services Explosive Safety Board. 1968. Potential Incidents 39).

Aluminum can react very exothermically and vigorously with CFCs, including dichlorodifluoromethane (Eiseman, B.J., Jr. 1963. American Society of Heating, Refrigerating and Air-Conditioning Engineers Journal 5:63).

Fluorocarbons can react exothermically, and sometimes explosively with aluminum. Reactions may evolve toxic HF gas (Urben, P.G. 1995. Bretherick's Handbook of Reactive Chemical Hazards, 5th Edition. Oxford: Butterworth-Heinemann. pp. 27-30).

Magnesium and aluminum form flammable mixtures with finely divided polytetrafluoroethylene (Anon. 1969. Indust. Res. (9):15; Pittaluga, F. et al., Termotechnica, 1981, 25, p. 332-334).

Potential Gas Byproducts

• Hydrogen Fluoride (HF)
• Acid Fumes