View More View Less
  • 1 Department of Inorganic and Analytical Chemistry, West Pomeranian University of Technology, Al. Piastów 42, 71-065, Szczecin, Poland
  • | 2 Institute of Physics, West Pomeranian University of Technology, Al. Piastów 17, 70-310, Szczecin, Poland
Restricted access

Abstract

The crystals of Gd2(SO4)3·8H2O were obtained by slow crystallization from a saturated solution previously received by dissolving Gd2O3 in an aqueous solution of sulfuric acid. The thermal behavior of this salt was studied using simultaneous DTA–TG technique under a nitrogen and air, in the temperature range of 298–1773 K. It was found that the dehydration of gadolinium sulfate octahydrate as well as thermal decomposition of anhydrous Gd2(SO4)3 undergo in two steps. The existence of two polymorphic modification of anhydrous gadolinium sulfate has been confirmed. The new XRD data for high-temperature polymorph of Gd2(SO4)3 were given. All intermediate products of dehydration and thermal decomposition were characterized by EPR method.

  • 1. Boonchom, B Kinetic and thermodynamic studies of MgHPO4·3H2O by non-isothermal decomposition data. J Therm Anal Calorim 2009 98:863871 .

  • 2. Hevroni, L, Shamish, Z, Danon, A 2009 Thermal dehydration and decomposition of copper selenate pentahydrate. J Therm Anal Calorim 98:367370 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 3. Rao, RP Preparation and characterization of fine-grain yttrium-based phosphors by sol-gel process. J Electrochem Soc 1996 143:189197 .

  • 4. Erdei, S, Roy, R, Harshe, G, Juwhari, H, Agrawal, D, Ainger, FW, White, WB 1995 The effect of powder preparation processes on the luminescent properties of yttrium oxide based phosphor materials. Mater Res Bull 30:745753 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 5. Rane, KS, Uskaikar, H, Pednekar, R, Mhalsikar, R 2007 The low temperature synthesis of metal oxides by novel hydrazine method. J Therm Anal Calorim 90:627638 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 6. Šulcova, P, Trojan, M 2007 Thermal synthesis of the (Bi2O3)1−x(Er2O3)x pigments. J Therm Anal Calorim 88:111113 .

  • 7. Šulcova, P, Trojan, M 2006 Thermal analysis of pigments based on Bi2O3. J Therm Anal Calorim 84:737740 .

  • 8. Nahdi, K, Férid, M, Ayadi, MT 2009 Thermal dehydration of CeP3O9·3H2O by controlled rate thermal analysis. J Therm Anal Calorim 96:455461 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 9. Basavaraja, S, Venkatataraman, A, Ray, A 2009 Interpretation of partial thermal decomposition mechanism of Dy2(SO4)3·8H2O. Thermal, electrical and spectroscopic techniques. J Therm Anal Calorim 96:419425 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 10. Hummel, HU, Fischer, E, Fischer, T, Joerg, P, Pezzei, G 1993 Structure and thermal manner of gadolinium sulfate octahydrate Gd2(SO4)3·8H2O. Z Anorg Allg Chem 619:805810 (in German).

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 11. Bayer, E, Leppert, J, Grabmaier, BC, Blasse, G 1995 Time-resolved spectroscopy and energy transfer in Pr3+-doped Gd2(SO4)3·8H2O. Appl Phys A 61:177181 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 12. Sato, A Formation of amosphous lanthanide sulfates and their crystallization. Thermochim Acta 1988 124:217228 .

  • 13. Tomaszewicz, E 2006 Studies on the reactivity in the solid state between some rare-earth metal oxides Ln2O3 where Ln = Y, La, Nd, Sm, Eu, Gd, Dy, Ho, Er, Lu and metal sulfates(VI) MSO4 where M = Ni, Cu, Zn, Cd. J Mater Sci 41:16751680 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 14. Baran, EJ, Aymonino, PJ 1968 The IR spectra of silver and thalium(I) sulphates. Spectrochim Acta 24A:288291.

  • 15. Dawson, P, Hargreave, MM, Wikinson, GR 1977 Polarized IR reflection, absorption and laser Raman studies on a single crystal of BaSO4. Spectrochim Acta 33A:8393.

    • Search Google Scholar
    • Export Citation
  • 16. Durie, RA, Milne, JW 1978 Infrared spectra of anhydrous alkali metal sulphates. Spectrochim Acta 34A:215220.

Manuscript Submission: HERE

  • Impact Factor (2019): 2.731
  • Scimago Journal Rank (2019): 0.415
  • SJR Hirsch-Index (2019): 87
  • SJR Quartile Score (2019): Q3 Condensed Matter Physics
  • SJR Quartile Score (2019): Q3 Physical and Theoretical Chemistry
  • Impact Factor (2018): 2.471
  • Scimago Journal Rank (2018): 0.634
  • SJR Hirsch-Index (2018): 78
  • SJR Quartile Score (2018): Q2 Condensed Matter Physics
  • SJR Quartile Score (2018): Q2 Physical and Theoretical Chemistry

For subscription options, please visit the website of Springer.

Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation
1969
Volumes
per Year
4
Issues
per Year
24
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)