Table 2.

Polynomial expansions of the RPFR factors (⁷¹ Ga/⁶⁹ Ga) of different Ga-bearing species based on the function 10³lnβ = ax + bx² + cx³, with x = 10⁶/T² (T is the temperature in Kelvin).

	Coefficient
	a	b	c
Solutions
[Ga(OH)4]−·(H2O)24	0.7275	− 8.3137 × 10–3	1.1734 × 10–4
[Ga(H2O)6]3+·(H2O)24	0.5734	− 5.4087 × 10–3	8.2297 × 10–5
[Ga(OH)]2+·(H2O)24	0.6071	− 6.3203 × 10–3	9.6375 × 10–5
[Ga(OH)3] ·(H2O)24	0.7248	− 8.8660 × 10–3	1.3149 × 10–4
[Ga(OH)2]+·(H2O)24	0.5876	− 6.2963 × 10–3	9.7843 × 10–5
Minerals
Orthoclase	0.8186	− 9.5192 × 10–3	1.3965 × 10–4
Albite	0.7920	− 9.1116 × 10–3	1.3134 × 10–4
Quartz	0.7707	− 8.4388 × 10–3	1.1769 × 10–4
Kaolinite	0.5307	− 3.9962 × 10–3	4.6345 × 10–5
Forsterite	0.4865	− 3.0535 × 10–3	3.4231 × 10–5
Montmorillonite	0.4597	− 3.0245 × 10–3	3.2987 × 10–5
Gibbsite	0.4599	− 3.6652 × 10–3	4.1035 × 10–5
Cassiterite	0.3884	− 1.5015 × 10–3	1.2383 × 10–5
Aragonite	0.3606	− 3.0339 × 10–3	4.8428 × 10–5
Sphalerite	0.3250	− 1.0477 × 10–3	5.1003 × 10–6
Calcite	0.3278	− 1.9878 × 10–3	3.3043 × 10–5
Gas species
Ga2O	0.1806	− 1.8980 × 10–3	2.8441 × 10–5
Ga2O3	0.6763	− 1.4769 × 10–2	2.8909 × 10–4
Ga2S3	0.3831	− 3.6826 × 10–3	4.0031 × 10–5
GaCl3	0.4612	− 2.8840 × 10–3	2.2142 × 10–5
GaF3	0.8098	− 1.2551 × 10–2	1.8818 × 10–4
GaO	0.2220	− 3.4406 × 10–3	4.9192 × 10–5