โ Scribed by R. Tawashi
No coin nor oath required. For personal study only.
Experimental observations of growth steps on aspirin crystals grown from a saturated solution in ethanol are described. The extensive examination of the surface feature of aspirin crystals indicates that the step system is the normal process of growth. From a saturated solution in ethanol, two-dimensional spherulites similar to those in polymers were also obtained; on heating (at lo"/ min.), they transformed into aspirin crystals, melting at 125".
Keyphrases 17 Aspirin, crystallization, spherulites-saturated aspirin in ethanol 0 Photomicrographs-aspirin spherulites 0 Crystallization-saturated aspirin frcm ethanol
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