Use mass density , with . The rock salt structure has formula units per conventional cell; the CsCl structure has . In pressure order the densities are approximately
The increase across the transition is approximately , much greater than the smooth compression within either branch. Comparing directly without correcting the different would create a fictitious volume discontinuity.
Figure 1.
KCl density calculated separately for the two crystal structures
. Original calculation from cell mass and volume. The narrow gap brackets the transition; separate lines avoid implying a continuous single-phase density through the jump. Details.

Articles by others on the same topic (0)

There are currently no matching articles.