Questions on growing crystals w/ ultrasound
jholstein at mail.mo.net
Mon Oct 9 21:19:32 EST 1995
Thank you for reading and responding
I am high school senior going considering doing a science fair project on
growing crystals under varying effects of ultrasound frequency and am
looking for chemists & physicists who would give me your thoughts?
statement of the nul-hypothesis:
crystal growth rate [mass/10-days] will not be affected by induced ultrasound
crystal growth purity [specific gravity ???] will not be ...etc...
constants in the experiment:
type of crystal = would alum give quick growth and allow purity meaures
variables to be controlled:
solution concentration: make-up large vat of liquid & use only that
keep sealed to avoid evaporation
temperature: grow crystals in an unused kiln with door closed.
frequency = thought I'd vary +20%, 0, -20% from size of alum molecule
amplitude = thought I'd keep constant
question: what wattage (amplitude) to use
Please CHAT with me on your suggestions of things I should consider
when doing this experiment. I love the sciences and am applying to
several colleges in bio+chem with a MS in biochem or PhD as an objective.
Thank you for helping
Matt Holstein, St.Louis, Missouri, USA
using my father's internet jholstein at mail.mo.net
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