Thermogravimetric study of carbon reduction of Nd2(SO4)3

Milan Skrobian, Nobuaki Sato, Masatoshi Saito, Takeo Fujino

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


The possibility of sulfide synthesis by carbon reduction of neodymium sulfate was studied by the thermogravimetric technique. Anhydrous Nd2(SO4)3 was formed by heating Nd2(SO4)3 · 8H2O in vacuum or in air at 300°C. When Nd2(SO4)3 was mixed with annealed carbon and heated in nitrogen, neodymium oxysulfide Nd2O2S was formed at 880°C. However, when Nd2(SO4)3 was mixed with activated carbon, the products after heating at the same temperature comprised a mixture of neodymium sulfide Nd3S4 with Nd2O2S. The ratio of Nd3S4 to Nd2O2S was found to vary with the reaction conditions.

Original languageEnglish
Pages (from-to)117-129
Number of pages13
JournalThermochimica Acta
Issue numberC
Publication statusPublished - 1994 Oct 3


  • Activated carbon
  • Carbon
  • Neodymium oxysulphide
  • Neodymium sulphate
  • Neodymium sulphide
  • TG

ASJC Scopus subject areas

  • Instrumentation
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry


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