Abstract
AbstractUltrasound is a useful method to obtain the stable form for polymorph systems. The stable crystal form of glycine as a model compound in cooling crystallization using ultrasound is studied. The form of the crystal products is characterized by powder X‐ray diffraction. The influences of ultrasound process parameters, including the ultrasound treating timing, treating mode, power density and duration, on the γ‐glycine in cooling crystallization are conducted. The nucleation moment when a “critical size of cluster” is formed is the most effective moment for the ultrasound treatment, and at the same time produces more stable form. Pulse treating mode can effectively solve the ultrasound thermal effect problem. The total energy input and duration has a peak value in promoting the form transformation in practice. The mechanism of the ultrasound in promoting the stable form formation is also discussed.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
