1. Anomalous Behaviour of Fused Cryolite
- Author
-
T. R. Scott
- Subjects
chemistry.chemical_compound ,Multidisciplinary ,Materials science ,chemistry ,Creep ,Drop (liquid) ,chemistry.chemical_element ,Thermodynamics ,Platinum crucible ,Wetting ,Cryolite ,Thallium compounds ,Bismuth - Abstract
NATURAL cryolite (Na3AlF6), when fused in a platinum crucible, yields a typical 'wetting' melt, which gradually spreads over the interior of the crucible and may even creep over the edge. When minute amounts of lead, bismuth or thallium compounds are added, a remarkable and practically instantaneous change is observed in the nature of the melt, which becomes 'non-wetting' and forms a single large drop with sharply defined boundaries.
- Published
- 1946