Minium

Formula : Pb₃O₄

Family:

Space group:

Tetragonal - Ditetragonal Dipyramidal HM symbol (4/m 2/m 2/m) Space Group: P 41/mbc

Dana class:

7.2.8.1III - 7 Multiple Oxides ; 7.2 Multiple Oxides (A+ B++)2 X4 Spinel group ; 7.2.8

Dernière mise à jour le 25.01.2021

Individual properties (298.15 K)

M g·mol^-1	V° cm³·mol^-1	ΔGº_f J·mol^-1	ΔHº_f J·mol^-1	Sº J·mol^-1·k^-1	C_P J·mol^-1·K^-1
685.598	75.340 (Ref.: 82pan) Pankratz L. B., 1982, Thermodynamic Properties of Elements and Oxides (U. S. Bureau of Mines Bulletin 672, 1982, 509 p).	-601589 (Ref.: Internal calculation)	-718686 (Ref.: 98cha) Chase, M.W.J., 1998. NIST-JANAF Thermochemical Tables, Journal of Physical Chemistry Reference Data, Vol. 9, 4th Edition. National Institute of Standards and Technology, Washington DC, 1951 pp.	211.960 (Ref.: 98cha) Chase, M.W.J., 1998. NIST-JANAF Thermochemical Tables, Journal of Physical Chemistry Reference Data, Vol. 9, 4th Edition. National Institute of Standards and Technology, Washington DC, 1951 pp.	155.27 (Ref.: 98cha) Chase, M.W.J., 1998. NIST-JANAF Thermochemical Tables, Journal of Physical Chemistry Reference Data, Vol. 9, 4th Edition. National Institute of Standards and Technology, Washington DC, 1951 pp.

C_P(T) = a + b·T + ·c·T^-2 (T in Kelvin)

a J·mol^-1·K^-1	*b 10³** J·mol^-1·K^-2	*c 10^-5** J·K·mol^-1	Maier Kelley Ref.
174.71	40.28	-27.96	(Ref.: 98cha) Chase, M.W.J., 1998. NIST-JANAF Thermochemical Tables, Journal of Physical Chemistry Reference Data, Vol. 9, 4th Edition. National Institute of Standards and Technology, Washington DC, 1951 pp.

Reaction properties

Minium + 6H⁺ ⇌ 3Pb⁺² + 0.5O₂ + 3H₂O

298.15 K, 1 bar log₁₀K: 30.53 ΔH°_r:-142109 J·mol^-1

T(°C)	0	25	60	100	150	200	250	300
log₁₀K	32.82	30.53	27.93	25.60	23.31	21.48	19.91	18.44

log₁₀K(T) = A + B·T + C·T^-1 + D·log₁₀(T) + E·T⁻² (T in Kelvin)

A	B	C	D	E
-801.525201	-0.122851	50264.711575	293.598656	-2346131.342542