Thermal dehydration and decomposition of copper selenate pentahydrate

Liron Hevroni, Zorik Shamish, Albert Danon

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

Temperature programmed desorption mass spectrometry (TPD-MS) and thermal gravimetry (TG) were utilized for the study of the thermal dehydration and decomposition of copper selenate pentahydrate (CuSeO4•5H 2O). From the two techniques we suggest that the dehydration is a 3-step process reaching completion at 300 °C. The decomposition process however, is far more complicated consisting of several successive steps occurring between 480 and 900 °C. Initiated with the emission of oxygen, the decomposition of the anhydrous salt continues with SeO2 emission via several unstable intermediates up to the conversion of the remaining copper monoxide into dicopper monoxide accompanied by oxygen emission.

Original languageEnglish
Pages (from-to)367-370
Number of pages4
JournalJournal of Thermal Analysis and Calorimetry
Volume98
Issue number2
DOIs
StatePublished - 1 Nov 2009
Externally publishedYes

Keywords

  • Copper selenate
  • MS
  • TG
  • Thermal decomposition
  • Thermal dehydration
  • TPD

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

Fingerprint

Dive into the research topics of 'Thermal dehydration and decomposition of copper selenate pentahydrate'. Together they form a unique fingerprint.

Cite this