A. Ubbelohde, I. Woodward
Oct 1, 1939
Citations
0
Influential Citations
24
Citations
Journal
Nature
Abstract
When the hydrogen in potassium dihydrogen phosphate (KH2PO4) is replaced by deuterium by repeated crystallization from warm 99.6 per cent heavy water (D2O), the potassium phosphate separates in a different crystal structure. It can with some difficulty also be made to crystallize in the tetragonal form described by West1, by adding a nucleus of KH2PO4 to a supersaturated solution of KD2PO4. When the new crystal form is powdered, it slowly reverts to the tetragonal form over a period of days.