Thermodynamic parameters of LiF and NdF₃ pure substances.

Phase	ΔH298.15 kJ mol−1	S 298.15 J mol−1 K−1	Temperature, K	C p J mol−1 K−1
LiF (solid)	−616.931	35.65	298.15–1121.3	C p = 42.69 + 14.41 × 10−3T − 5.30 × 105 × T−2
LiF (liquid)	−594.58	43.00	1121.3–1900	64.183
NdF3 (solid)	−1679.458	120.792	298.15–1650	C p = 92.697 + 23.43 × 10−3 × T − 6.456 × 105 × T−2
NdF3 (liquid)	−1607.88	340.77	1650–1800	C p = 184.473 − 4.435 × 10−3T − 119.244 ×105 × T−2