If greater then 100 ppm, then discard as hazardous waste. If less then 100ppm, treat until you cannot detect the presence of peroxides 2. Before distilling any Class C material, a suitable polymerization inhibitor must be added. An explosion shield must be used and placed between the evaporation or distillation process and the operator. Safety goggles must be worn by the operator.
Most accidents occur when material is almost or a nearly dry residue.
Use a boiling aid or magnetic stirrer before you use a nitrogen bleed to maintain ebullition. In operations using higher boiling peroxidizable compounds under reduced pressure, and explosive mixture can result because the boiling temperature may be lower then the peroxide decomposition temperature. The Elements of Physical Chemistry . Oxford University Press, 1993. Jackson, H.L., McCormack, W.B., Rondestved, C.S., Smeltz, K.C., Viele I.E .