Chabazite

Formula : Ca(Al2Si4)O12:6H2O

Family: 
Zeolites
Space group: 
Triclinic - Pinacoidal H-M Symbol ( 1) Space Group: P1
Dana class: 
77.1.2.1 (77) Tectosilicate Zeolite group (77.1) true zeolites (77.1.2) Chabazite and related species
High temperature: 
See Laumontite
Geological context: 
See Laumontite

Dernière mise à jour le 25.01.2021

THERMODYNAMICS

Individual properties (298.15 K)
M
g·mol-1
 V°
cm3·mol-1
 ΔGºf
J·mol-1
 ΔHºf
J·mol-1
 Sº
J·mol-1·k-1
 CP
J·mol-1·K-1
506.468 251.160 (Ref.: 97coo/alb) Coombs, D.S., Alberti, A., Armbruster, T., Artioli, G., Colella, C., Galli, E., Grice, J.D., Liebau, F., Mandarino, J.A., Minato, H., Nickel, E.H., Passaglia, E., Peacor, D.R., Quartieri, S., Rinaldi, R., Ross, M., Sheppard, R.A., Tillmanns, E., Vealini, G., 1997. Recommended nomenclature for zeolite minerals - report of the subcommittee on zeolites of the international mineralogical association, commission on new minerals and mineral names. Canadian Mineralogist, 35, 1571-1606. -7173528 (Ref.: Internal calculation) -7826440 (Ref.: 08bla) Blanc P. (2008) : Thermoddem - Selection de proprietes thermodynamiques pour les principales especes aqueuses et minerales porteuses de fer. Rapport final. Rapport BRGM/RP-56587-FR, 70p. 614.000 (Ref.: 09bla) Blanc P. (2009) - Thermochimie - Selection de constantes thermodynamiques pour les zeolites : version 2. Rapport final. Rapport BRGM/RP-57796-FR. 55 p. 642.81 (Ref.: 10vie) Vieillard P., 2010 - A predictive model for the entropies and heat capacities of zeolites. Eur. J. Mineral. 22, 823-836
CP(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.
658.02 92.00 -37.90 (Ref.: 10vie) Vieillard P., 2010 - A predictive model for the entropies and heat capacities of zeolites. Eur. J. Mineral. 22, 823-836
Reaction properties

Chabazite + 8H+ ⇌ 2Al+3 + Ca+2 + 4H4SiO4 + 2H2O

298.15 K, 1 bar log10K: 11.54 ΔH°r:-200464 J·mol-1 (Ref.: 08bla) Blanc P. (2008) : Thermoddem - Selection de proprietes thermodynamiques pour les principales especes aqueuses et minerales porteuses de fer. Rapport final. Rapport BRGM/RP-56587-FR, 70p.
T(°C) 0 25 60 100 150 200 250 300
log10K 14.60 11.54 7.75 4.19 0.64 -2.27 -4.83 -7.29
log10K(T) = A + B·T + C·T-1 + D·log10(T) + E·T−2 (T in Kelvin)
A B C D E
-2587.577892 -0.352984 161808.394935 917.009275 -9549477.841889