6) Insulate the column. When using a Vigreux column, it should be wrapped with glass wool and aluminum foil. Without insulation, these set-ups tend to take a very long time 7 Connect the condenser to the water lines, turn on the water, and check for leaks. 8)Raise the stir plate and heating apparatus to the flask and begin heating. note Variac gauges do not correspond to temperature. Setting the dial at 70 will not heat your oil bath to 70C -it will actually go much higher. Also, different oil baths and heating mantles will heat to different temperatures at the same Variac settings 9) Lower the hood sash. This is always a good practice in case of accident, but it also keeps the distillation apparatus away from the air conditioning of the lab. This will cool your set-up and make your distillation take longer 10)DO NOT HEAT TOO QUICKLY! !! Patience is the key to distillation. 11)Slowly increase the temperature of the heating apparatus until the solution is refluxing 12) Wait to see the distillation thermometer respond. If nothing happens after about 10 minutes then raise the temperature slightly 13) Repeat step #12 until you see the distillation thermometer respond. Once this happens, prepare to collect 14) Try to keep the apparatus at a constant temperature -at least within 5 degrees of the temperature when the distillation thermometer registered 15) Collect until a dramatic change in temperature occurs. Usually the temperature of the distillation thermometer will drop when one fraction is done distilling. At this point you should change receiver flasks or stop the distillation entirely 16) When you have collected everything you want, drop the heating apparatus and let the entire apparatus cool.6) Insulate the column. When using a Vigreux column, it should be wrapped with glass wool and aluminum foil. Without insulation, these set-ups tend to take a very long time. 7) Connect the condenser to the water lines, turn on the water, and check for leaks. 8) Raise the stir plate and heating apparatus to the flask and begin heating. Note: Variac gauges do not correspond to temperature. Setting the dial at 70 will not heat your oil bath to 70 °C - it will actually go much higher. Also, different oil baths and heating mantles will heat to different temperatures at the same Variac settings. 9) Lower the hood sash. This is always a good practice in case of accident, but it also keeps the distillation apparatus away from the air conditioning of the lab. This will cool your set-up and make your distillation take longer. 10) DO NOT HEAT TOO QUICKLY!!! Patience is the key to distillation. 11) Slowly increase the temperature of the heating apparatus until the solution is refluxing. 12) Wait to see the distillation thermometer respond. If nothing happens after about 10 minutes then raise the temperature slightly. 13) Repeat step #12 until you see the distillation thermometer respond. Once this happens, prepare to collect. 14) Try to keep the apparatus at a constant temperature - at least within 5 degrees of the temperature when the distillation thermometer registered. 15) Collect until a dramatic change in temperature occurs. Usually the temperature of the distillation thermometer will drop when one fraction is done distilling. At this point you should change receiver flasks or stop the distillation entirely. 16) When you have collected everything you want, drop the heating apparatus and let the entire apparatus cool. 60