Trifluorobromo-and tetrabromo methane - prodn

摘要

Difluorobromo methane is reacted with aluminium chloride or -bromide at temp. -20 to + 120 degrees C and pressure 0.5-15 kg/cm2 in presence of solvent for di-fluorobromo- and tetrabromo methane, trifluorobromo methane is removed by way of condenser, and tetrabromomethane is separated from reaction mixture. Trifluorobromo methane is an effective fire-extinguishing agent with minimal toxicity.