Reports

High-Pressure Polymorphism in Sodium Chloride: A Reinvestigation

Science  22 Jul 1966:
Vol. 153, Issue 3734, pp. 419-420
DOI: 10.1126/science.153.3734.419

Abstract

X-ray studies of sodium chloride near 20 kilobars were made in an attempt to verify the reported highpressure-stable, cesium chloride-type structure. Experiments employing extreme shear forces, elevated temperature, and various moisture contents have shown no indication of a second phase. A reexaminatino of the original x-ray evidence suggests that the data may be explained by lithium found in the apparatus.

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