Yes, your laboratory can successfully recycle high purity solvents

Equilibration Time

Equilibration time is the time required for the distillation equipment to separate the components of a mixture, before removal of the distillate is begun. This is achieved with the distillation equipment in total reflux and occasionally takes hours depending on the characteristics of the compound being separated.

Separations of components that boil far apart require little or no equilibration time. Separation of close boiling materials requires longer equilibration times.

The M690 microprocessor allows the equilibration time to be preprogrammed for each solvent recycling protocol. When boil-up (when vapor first reach the top (head) of the distillation column) is detected the microprocessor automatically starts to count down the programmed equilibration time. When the equilibration time is finished, the reflux valve will begin to operate and the first fraction (cut) will start to be collected.


Heating Rate
Reflux Ratio
Open Cut
Close Cut
Auto Shut Down Temperature
M690 Parameters