A4.5.2.1 If the intent of the distillation is to determine the
value of Exxx and the distillation was terminated after about
2 mL of distillate was collected beyond the desired
temperature, allow the distillate to drain into the receiving
graduate. Allow the contents of the flask to cool to below
approximately 40 °C and then drain its contents into the
receiving graduate. Note the volume of product in the receiving
graduate to the nearest 0.5 mL at 2 min intervals until two
successive observations agree.
A4.5.2.2 The amount recovered in the receiving graduate is
the percent recovery. Determine the amount of observed loss
by subtracting the percent recovery from 100.0.