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QX3 Time-Lapse Movie Gallery
Sublimation of Moth Crystals
(para-Dichlorobenzene)
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Less toxic than naphthalene, para-dichlorobenzene also has a very high vapor pressure and is effective in disrupting the destruction of clothes by moths. When recrystallized from the melt, will slowly crystallize, forming beautiful dendritic needle-like crystals that slowly sublime. The time-lapse movie was made using a modified version of the Intel Play QX3 microscope equipped for polarized light illumination with a full-wave (first order) retardation plate.
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