Exalt is a new technology developed by Genevac with partners in the field of pharmaceutical small molecule crystallisation.
Exalt enables a wide range of solvents to be evaporated at the same time, and all at the same slow rate to produce crystals for polymorph screening, stable form identification and other applications.
Exalt uses a special holder for vials which allows a selection of baffles to be placed on top of the vial to slow the evaporation rate of the volatile solvents.
Size and number of baffles are selected to be most restrictive for the most volatile solvents, and least restrictive to the less volatile solvents. In some cases no baffle is required.
The holder is then placed in a Genevac HT series evaporator which cycles the pressure for the duration of the process. Up to 3ml of solvent within the boiling point range of 40ºC to 165ºC may be placed in each vial.
The evaporation time can be controlled to range from 6 hours to 72 hours, or more, as required for most solvents in this boiling point range.