Abstract
1,4-di- tert-butylbenzene (DTBB) was crystallized from several organic solvents in order to study the effect of solvents and crystallization conditions on its habit. The length to width ratio of DTBB crystals varies from 1.2 to 20 being correlated directly to the maximum attainable supersaturation. Some effect of elongation has been detected caused by addition of impurities to the crystallizing solution. A special crystal habit modification of acicular outgrowths has been noted in crystals grown from tert-butyl-alcohol. The appearance of outgrowths is ascribed to solvent-solute alignment induced by structural compatibility of the DTBB molecule and tert-butyl-alcohol dimers.
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