Eutectic composition

77.8 wt.% K

Melting point

-12.6 °C

Boiling point

785 °C (estimate)

Volume increase on melting

0.025

Density (liquid)

m.p. - 0.875 g/cm³

20°C - 0.867 g/cm³

100°C - 0.855 g/cm³

550°C - 0.749 g/cm³

Viscosity (liquid)

m.p. - 1.3 cP

20°C - 0.94 cP

100°C - 0.505 cP

550°C - 0.176 cP

Electrical resistivity (liquid)

m.p. - 33.5 µΩcm (estimate)

20°C - 38.0 µΩcm (estimate)

100°C - 40.7 µΩcm (estimate)

550°C - 72.0 µΩcm (estimate)

Thermal conductivity (liquid)

20°C - 0.218 W/cm-°C

100°C - 0.232 W/cm-°C

550°C - 0.262 W/cm-°C

Specific heat (liquid)

m.p. - 0.233 cal/g-°C

20°C - 0.232 cal/g-°C

100°C - 0.224 cal/g-°C

550°C - 0.208 cal/g-°C