Table I

Coefficients in Equation (i) for the PGMs in the Solid and Liquid States


Element	Phase	Temperature range, K	A	B	C	D	E

Ru	Solid	1400–2606	23.31345	− 0.632925	− 78385.0	3.36362 × 10⁻⁴	− 8.85627 × 10⁻⁸
	Liquid	2606–4600	54.00959	− 4.54744	− 80366.4	4.73549 × 10⁻⁴	− 1.54492 × 10⁻⁸
Rh	Solid	1200–2236	45.43958	− 3.95580	− 68981.1	2.32882 × 10⁻³	− 2.96772 × 10⁻⁷
	Liquid	2236–4200	38.32595	− 2.60178	− 67855.0	− 5.86242 × 10⁻⁵	4.32765 × 10⁻⁹
Pd	Solid	850–1828	14.37701	0.270634	− 45327.0	− 1.30189 × 10⁻³	2.07872 × 10⁻⁷
	Liquid	1828–3300	92.64931	− 10.78435	− 51456.6	3.94327 × 10⁻³	− 2.33111 × 10⁻⁷
Os	Solid	1700–3400	26.80257	− 1.17147	− 95027.6	5.67800 × 10⁻⁴	− 6.25215 × 10⁻⁸
	Liquid	3400–5600	44.97739	− 3.42327	− 93300.9	2.65730 × 10⁻⁴	− 5.86394 × 10⁻⁹
Ir	Solid	1400–2719	27.23601	− 1.22965	− 81010.4	4.34895 × 10⁻⁴	− 5.80991 × 10⁻⁸
	Liquid	2719–5000	51.13835	− 4.06675	− 83829.3	1.29129 × 10⁻⁴	− 3.77392 × 10⁻⁹
Pt	Solid	1200–2041.3	20.55547	− 0.279512	− 68277.9	− 1.49389 × 10⁻⁴	− 3.60502 × 10⁻⁸
	Liquid	2041.3–4200	34.89596	− 2.24178	− 68166.4	4.95301 × 10⁻⁵	8.91166 × 10⁻¹⁰