Calculated enthalpies (Δ_fH) and free-energies (Δ_fG) of formation and associated reaction constants (log K) of becquerelite as a function of temperature. The values of Δ_fH and Δ_fG are in units of kJ mol⁻¹.

T (K)	ΔfH	ΔfG	log K
298.15	−1898.20	−1708.18	299.26
10	−4490.74	−4488.98	23 447.44
50	−2380.74	−2356.47	2461.72
100	−2104.13	−2042.30	1066.76
200	−1952.03	−1824.12	476.40
300	−1897.57	−1706.36	297.10
350	−1883.69	−1660.30	247.78
400	−1874.26	−1619.02	211.42
450	−1868.05	−1581.24	183.54
500	−1864.24	−1546.02	161.51
550	−1862.33	−1512.88	143.68
600	−1861.93	−1481.41	128.97
650	−1862.75	−1451.27	116.62
700	−1864.66	−1422.25	106.13
750	−1867.51	−1394.15	97.10
800	−1871.14	−1366.85	89.24