Upon cooling, mesitylene sulfonic acid crystallizes and the unsulfonated material remains as an oil on the surface.
"Organic-Syntheses"
Conant, James Bryant
On cooling, p-nitrobenzyl cyanide crystallizes; the mother liquor, on distillation, gives an impure alcohol which can be used for the next run.
"Organic-Syntheses"
Conant, James Bryant
The sea-foam crystallizes at her touch into precious stones, of whiteness as dazzling as that of her body.
"The Fairy-Faith in Celtic Countries"
W. Y. Evans Wentz