Abstract—
Pectolite H1.00Na0.96Ca2.00\({\text{Mn}}_{{0.02}}^{{2 + }}\)Si3.00O9 from nepheline−feldspathic veins in the Kovdor massif, Kola Peninsula, Russia, was studied by X-ray diffraction (XRD), IR and Raman spectrometry, microprobe analysis (EPMA), and thermal analysis. The enthalpy of formation of pectolite HNaCa2Si3O9.from elements ∆fH° (298.15 K) = –4651.0 ± 4.3 kJ/mol was determined by melt solution calorimetry on a Setaram Tian–Calvet (France) microcalorimeter. The enthalpy of formation of serandite HNaMn2Si3O9, the manganese end member of the pectolite–serandite isomorphic series, was determined to be ΔH(298.15 K) = −4052.6 ± 4.4 kJ/mol. The absolute entropies and Gibbs energies of pectolite and serandite were calculated.
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REFERENCES
M. J. Buerger, “The determination of the crystal structure of pectolite, Ca2NaHSi3O9,” Z. Kristallogr. 108, 248–262 (1956).
N. V. Chukanov and I. V. Pekov, “Infra-red spectroscopy of acid salts. I. Silicate Minerals,” Zap. Ross. Mineral. O-va 141 (3), 129–143 (2012).
V. Correcher, J. Garcia-Guinea, M. Castillejo, M. Oujja, E. Rebollar, and P. Lopes-Arce, “Laser-induced fluorescence and thermoluminescence response of a Na–Ca rich silicate,” Radiat. Measur. 41, 971–975 (2006).
S. Fritsch and A. Navrotsky, “Thermodynamic properties of manganese oxides,” J. Am. Ceram. Soc. 79 (7), 1761–1768 (1996).
R. L. Frost, A. Lópes, F. L. Theiss, A. W. Romano, and R. Scholz, “A vibrational spectroscopic study of the silicate mineral pectolite—NaCa2Si3O8(OH),” Spectrochim. Acta, Part A: Mol. Biomol. Spectrosc. 134, 58–62 (2015).
V. M. F. Hammer, E. Libowitzky, and G. Rossman, “Single-crystal IR spectroscopy of very strong hydrogen bonds in pectolite, NaCa2Si3O8(OH), and serandite NaMn2Si3O8(OH),” Am. Mineral. 83, 569–576 (1998).
G. Yu. Ivanyuk and V. N. Yakovenchuk, Minerals of Kovdor (Kolsk. Nauchn. Ts., 1997) [in Russia].
S. D. Jacobsen, J. R. Smyth, R. J. Swope, and R. I. Sheldon, “Two proton position in the very strong hydrogen bond of serandite, NaMn2Si3O8(OH),” Am. Mineral. 85, 745–752 (2000).
I. A. Kiseleva, L. P. Ogorodova, N. D. Topor, and O. G. Chigareva, “Thermochemical study of the CaO–MgO–SiO2 system,” Geokhimiya, No. 12, 1811–1825 (1979).
I. A. Kiseleva, A. Navrotsky, I. A. Belitsky, and B. A. Fursenko, “Thermochemical study of calcium zeolites – heulandite and stilbite,” Am. Mineral. 86, 448–455 (2001).
R. H. Mitchell, M. D. Welch, A. R. Kampf, A. K. Chakhmouradian, and J. Spratt, “Barrydawsonite-(Y), Na1.5Y0.5CaSi3O9H: a new pyroxenoid of the pectolite – serandite group,” Mineral. Mag. 79 (3), 671–686 (2015).
K. Nakamoto, Infrared and Raman Spectra of Inorganic and Coordination Compounds, 6th Edition (Wileys, 2009).
L. P. Ogorodova, I. A. Kiseleva, L. V. Melchakova, M. F. Vigasina, and E. M. Spiridonov, “Calorimetric Determination of the Enthalpy of Formation for Pyrophyllite,” Russ. J. Phys. Chem. A. 85 (9), 1492–1494 (2011).
L. P. Ogorodova, L. V. Melchakova, I. A. Kiseleva, and I. A. Belitsky, “Thermochemical study of natural pollucite,” Thermochim. Acta. 403, 251–256 (2003).
M. J. Origlieri, R. T. Downs, H. Yang, D. R. Hoffman, M. N. Ducea, and J. E. Post, “Marshallsussmanite, NaCaMnSi3O8(OH), a new pectolite-group mineral providing insight into hydrogen bonding in pyroxenoids,” Mineral. Mag. 85 (3), 444–453 (2021).
C. T. Prewitt, “Refinement of the structure of pectolite, Ca2NaHSi3O9,” Z. Kristallogr. 125 (8), 298–316 (1967).
R. A. Robie and B. S. Hemingway, “Thermodynamic properties of minerals and related substances at 298.15 K and 1 bar (105 pascals) pressure and at higher temperatures,” US Geol. Surv. Bull. 2131, (1995).
I. V. Rozhdestvenskaya and V. A. Vasilieva, “Cation ordering and structural deformations in pectolite HNaCa2Si3O9 – serandite HNaMn2Si3O9,” J. Struct Chem. 55 (7), 1268–1276 (2014).
S. Zang, L. Ci, W. Mu, and M. Lu, “NaCa2Si3O8(OH)/PEDOT: PSS composite nanowires as anode materials for lithium-ion batteries,” Chem. Phys. Lett. 715, 40–44 (2019).
ACKNOWLEDGMENTS
The authors thank the administration of the Geological Faculty, Lomonosov Moscow State University, for making available for this study the STOE-STADI MP powder X-ray diffractometer, FSM-1201 FTIR spectrometer, EnSpectr R532 Raman microscope, Q-1500D derivatograph, and Setaram Tian–Calvet microcalorometer that are installed at the faculty.
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Translated by E. Kurdyukov
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Ogorodova, L.P., Gritsenko, Y.D., Vigasina, M.F. et al. Thermodynamic Properties of Pectolite. Geochem. Int. 61, 75–81 (2023). https://doi.org/10.1134/S0016702923010056
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DOI: https://doi.org/10.1134/S0016702923010056