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New Solvent Purification System

solvent stills

Figure 1 Old stills

Figure 1 shows the old stills. Distillation was done from calcium hydride or sodium/benzophenone, which represent a significant hazard. Pangborn et al. (Organometallics 1996, 15, 1518) described a a less hazardous procedure for solvent purification. We have constructed a new purification system using their guidelines (Figure 2).

solvent stills

Figure 2 New stills

The new apparatus are more sophisticated in design and require more extensive training. A comprehensive manual which describes the operation of the new system is available here as a pdf file.