ChemicalFormulas - Charge volume What is charge volume, it is the volume of the specimen, that contained 100 mL, charged to the distillation flask at the temperature specified in.
Decomposition of a hydrocarbon is the pyrolysis or cracking of a molecule yielding smaller molecules with lower boiling points than the original molecule.
Decomposition point is the corrected thermometer reading that coincides with the first indications of thermal decomposition of the liquid in the flask.
Dry point is the corrected thermometer reading that is observed at the instant the last drop of liquid (exclusive of any drops or film of liquid on the side of the flask or on the temperature sensor), evaporates from the lowest point in the distillation flask.
Dynamic holdup is the amount of material present in the neck of the flask, in the sidearm of the flask, and in the condenser tube during the distillation.
Emergent stem effect is the offset in temperature reading caused by the use of total immersion mercury-in-glass thermometers in the partial immersion mode.
Rate of change (or slope) is the change in temperature reading per percent evaporated or recovered.
Temperature lag is the offset between the temperature reading obtained by a temperature sensing device and the true temperature at that time.
End point (EP) or final boiling point (FBP), is the maximum corrected thermometer reading obtained during the test. This usually occurs after the evaporation of all liquid from the bottom of the flask. The term maximum temperature is a frequently used synonym.
Initial boiling point (IBP) is the corrected thermometer reading that is observed at the instant the first drop of condensate falls from the lower end of the condenser tube.
Front end loss is loss due to evaporation during transfer from receiving cylinder to distillation flask, vapor loss during the distillation, and uncondensed vapor in the flask at the end of the distillation.
Corrected loss is percent loss corrected for barometric pressure.
Percent evaporated is the sum of the percent recovered and the percent loss.
Percent loss (or observed loss) is one hundred minus the percent total recovery.
Percent recovered is the volume of condensate observed in the receiving cylinder, expressed as a percentage of the charge volume, associated with a simultaneous temperature reading.
Percent recovery is the maximum percent recovered, as observed in accordance with
Corrected percent recovery is the percent recovery, adjusted for the difference between the observed loss and the corrected loss.
Percent total recovery is the combined percent recovery and residue in the flask.
Percent residue is the volume of residue in the flask, measured in accordance with and expressed as a percentage of the charge volume.
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