Periclase

MgO

unknown · Cited · 2010

V₀

11.25

cm³/mol

Molar

K₀

160.900

GPa

Isothermal

K′

4.120

dimensionless

Volume (V₀)

Value	Unit	Basis	Z
11.25	cm³/mol	Molar	—

Reported value and unit are preserved as extracted. Z (formula units per cell) is not stored yet, so molar ↔ Å³/f.u. conversion is not applied automatically.

Composition

Oxide	Molar
MgO	1

Formula: MgO

Conditions & method

T_ref: 298.2 K
P_ref: 0.000 GPa
Structure: other / unspecified
Method: literature compilation / cited value
literature compilation (Robie and Hemingway 1995 for V; Sinogeikin and Bass 1999 for K0; Speziale et al. 2001 for K'; Isaak et al. 1989 for dK/dT)
Sample: literature values compiled in Table 8 (Per column) used for phase-equilibrium calculation of Fo + Per = Anh-B

Source

Paper: Thermo-chemical and thermo-physical properties of the high-pressure phase anhyd…
Authors: G. Ottonello; Bartolomeo Civalleri; Jibamitra Ganguly; Warren F. Perger; Donato Belmonte; Marino Vetuschi Zuccolini
DOI: 10.2138/am.2010.3368
Year: 2010
Journal: American Mineralogist
Origin: Cited (quoted from earlier work)

Evidence from the paper

Table 8. Ab-initio B3LYP thermodynamic data for Anh-B and selected literature values for forsterite (Fo) and periclase (Per): Per column lists V298 (cc/mol) = 11.25 (Robie and Hemingway 1995), K0 (GPa) = 160.9 (Sinogeikin and Bass 1999), K'_T0 = 4.12 (Speziale et al. 2001), (dK/dT)P (bar/K) = -290.0 (Isaak et al. 1989). Figure 6 caption: 'thermal expansion, isothermal bulk moduli K0, isobaric thermal partial derivative (dK/dT)P and isothermal baric partial derivative (dK/dP)T are from ... Sinogeikin and Bass (1999), Isaak et al. (1989), Speziale et al. (2001), and Saxena and Shen (1992) for periclase.' Table note: 'The molar volume at T = 298.15 K, P = 1 bar'.

Additional notes

dK dT P

-290.0 bar/K (Isaak et al. 1989)

thermal expansion coefficients

alpha0x10^7 = 0.0835; alpha1x10^7 = 364.0; alpha2x10^3 = 0.85; alpha3 = -0.95; alpha4 = 0.0 (Saxena and Shen 1992)

S 298

26.9 J/mol K

dHf 298

-601.6 kJ/mol

K0 source

Sinogeikin and Bass (1999)

Kp source

Speziale et al. (2001)

V0 source

Robie and Hemingway (1995)

notes

Periclase parameters are literature values used to compute the univariant equilibrium forsterite + periclase = Anh-B; the paper itself is an ab-initio study of anhydrous B (not a lower-mantle target phase).