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| View Original: | Toluene with sodium-benzophenone - brown.jpg (1600x1200) | |||
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| Keywords: Toluene with sodium-benzophenone - brown.jpg Reaction not complete Refluxing toluene with sodium desiccant and benzophenone indicator/oxygen scavenger Taken 4 Sep 2006 Keywords reflux toluene sodium benzophenone distillation desiccation Gallery <gallery><gallery> Image Benzophenone bottle jpg A bottle of benzophenone by Lancaster Image Toluene with sodium-benzophenone jpg Toluene is refluxed with and benzophenone to produce dry oxygen-free toluene Image Toluene with sodium-benzophenone - brown jpg The mixture is still not blue yet indicating that the reaction is not complete Image Toluene with sodium-benzophenone - intense blue jpg The intense blue coloration due to the benzophenone ketyl radical shows that the toluene is considered free of air and moisture Image Distillation of dry and oxygen-free toluene jpg After the toluene has been thoroughly dried by the sodium and benzophenone it is distilled at atmospheric pressure under a slight positive pressure of nitrogen to prevent contamination by air into the receiving Schlenk flask </gallery> en wikipedia Liftarn CommonsHelper 2006-09-04 Rifleman 82 wikipedia en Rifleman 82 Original upload log page en wikipedia Toluene_with_sodium-benzophenone_-_brown jpg 2006-09-04 18 05 Rifleman 82 1600×1200× 352717 bytes <nowiki>Reaction not complete Refluxing toluene with sodium desiccant and benzophenone indicator/oxygen scavenger Taken 4 Sep 2006 </nowiki> Benzophenone | ||||
