Glass production line handling

Bromine pentafluoride, which is commercially available from Baker Chemicals, Phillipsburg, NJ, or Union Carbide Corp., may be used as such with the typical impurity of several percent bromine. It should be handled in a metal vacuum line.4 Standard glass vacuum lines with Kel-F greased valves have also been used, but this technique results in a SiF4 impurity. Sulfinyl difluoride, if not available, is best prepared from SOCl2 and NaF in CH3CN at 70° and by redistillation of the product at -43°. This method can be used on the 100-500 g scale. 

Liquid polyalurninum chloride is acidic and corrosive to common metals. Suitable materials for constmction of storage and handling facilities include synthetic mbber-lined steel, corrosion resistant fiber glass reinforced plastics (FRP), ceramics, tetrafluoroethylene polymer (PTFE), poly(vinyhdene fluoride) (PVDF), polyethylene, polypropylene, and poly(vinyl chloride) (PVG). Suitable shipping containers include mbber-lined tank tmcks and rail cars for bulk shipment and plastic-lined or aH-plastic dmms and tote bins for smaller quantities. Except for aluminum chlorohydrates, PAG products are shipped as hazardous substances because of their acidity. 

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