Skip to main content
SpringerLink
Log in

Isothermal investigation of decomposition of FeSO4·H2O-BaO2 mixtures

  • Inorganic Compounds
  • Published:
Journal of thermal analysis Aims and scope Submit manuscript

Abstract

Isothermal studies were conducted on mixtures of Fe2SO4·H2O in BaO2 in molar ratios ofn=4, 2 and 1 at temperatures of 573 and 1073 K, in a closed crucible, in air as gas medium. The solid products of decomposition were investigated by means of X-ray analysis, Mössbauer spectroscopy and electron spectroscopy.

The experiments revealed that the mechanism of the process is connected with the formation of different quantities of barium ferrites (BaFeO3, BaFe2O4 and BaFe12O19), as well as BaSO4 and Fe2O3, depending on the quantity of BaO2 in the initial mixture, the partial pressure of the gas components and temperature. Differences were found in the mechanism of the process for the same mixtures under dynamic temperature conditions.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. E. Martinez-Tomayo, A. Beltran-Porter and D. Beltran-Porter, Thermochim. Acta, 91 (1985) 249.

    Article  Google Scholar 

  2. E. Martinez-Tomayo, A. Beltran Porter and D. Beltran-Porter, Thermochim. Acta, 98 (1986) 167.

    Article  Google Scholar 

  3. Y. Pelovski, V. Petkova, I. Dombalov and I. Gruncharov, J. Thermal Anal., 36 (1990) 1727.

    Article  CAS  Google Scholar 

  4. Y. Pelovski and V. Petkova, Thermochim. Acta.

  5. Y. Pelovski, V. Petkova and S. Nikolov, Thermochim. Acta, 274 (1996) 273.

    Article  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Central Laboratory of Physico-Chemical Mechanics, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 1, 1113, Sofia, Bulgaria

    V. Petkova

Authors
  1. V. Petkova
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Petkova, V. Isothermal investigation of decomposition of FeSO4·H2O-BaO2 mixtures. Journal of Thermal Analysis 49, 1373–1384 (1997). https://doi.org/10.1007/BF01983696

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF01983696

Keywords

Search

Navigation