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Hazard Predictions

• No known hazardous reaction

Alkali and alkali earth metals do not react with benzene, toluene, or xylene in the absence of proton sources (such as water, alcohols, or ammonium salts) (E. M. Kaiser, Synthesis, 1972, (8), p. 391-415; C. B. Wooster, K. L. Godfrey, J. Am. Chem. Soc., 1937, (59), p 596-597).

Alkali and alkali earth metals dissolved in ammonia can perform stepwise one-electron reductions of polynuclear aromatic hydrocarbons in the presence of proton sources (inc. alcohols, water, or ammonium salts). The reaction produces 1,4-cyclohexadienes (Birch reduction) or cyclohexenes (Benkeser reduction) (A. A. Akhrem, I. G. Reshetova, Y. A. Titov: Birch Reductions of Aromatic Compounds, IFI/Plenum, New York 1972; E. M. Kaiser, Synthesis, 1972, (8), p. 391-415).