Evolving Machine Learning Methods for Density Estimation of Liquid Alkali Metals over the Wide Ranges

Table 1

Details of experimental data.

System	Range of temperature (K)	Range of pressure (MPa)
Li	500–2000	10–100
Na	400–2000	10–100
K	400–1800	10–100
Rb	400–1600	10–100
Cs	400–1600	10–100
Na + K	400–1200	2.23 × 10^−7–0.409
K + Cs	350–1300	1.499 × 10^−8–1.1