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Fractional distillation - Coggle Diagram
Fractional distillation
50 mL round bottom flask
Distillation pot
Connect rubber hoses to distillation condenser
Before clamping it
thermometer positioned properly
In three way adapter
Start water
pressure not too high
Remove thermometer and three way adaptor
set on counter
Remove ref from settup using arm of clamp as a handle
use glass stopper to cork flask
(before going to mesure the acetone/water mixture)
use pre-measured dispenser pump in the fume hood
add 20.0 mL acetone/water mixture to rbf
add 2 teflon boiling chips
Cork rbf before leaving fume hood
Reconnect flask to distillation apparatus
Then install heating mantle
sides of flask in contact with mantle
HAVE INSTRUCTOR CHECK APPARATUS BEFORE PLUGGING MANTLE INTO VARIAC
use 10 mL concentrator tube (receiving flask)
secured with keck clip
heat --> variac to 8.5
pay attention to the rate of dripping
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Stop distillation ( lowering heating mantle and turning it off) when 2 successive temps 0.5 mLs apart above 90 degrees celsius
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