The reactive crystallization was performed in a compact minireactor
with a maximum capacity of 250 mL (Trallero and Schlee,
Spain). A PTFE overhead impeller was used to provide mixing of the
solution with a rotation speed at 240 rpm controlled by a
microprocessor (Trallero and Schlee, Spain). An external thermostat
was used to maintain the constant operating temperature.
Solid CaCl22H2O