Thermal and structural changes during the synthesis of metaphosphate glass

Slavica Bogdanov, Verica Mladenović, Katarina Kilibarda, Svetlana Mitrovski

Research output: Contribution to journalArticlepeer-review

Abstract

Methaphsophate glass was synthesized by melting a mixture of analytical grade Na-hexametaphosphate, Al-metaphosphate and silver as silver nitrate. The thermal and structural changes in the courses of synthesis were investigated by DTA and IR structural analysis. The characteristic temperatures of glass transformation and softening were found to be 477°C and 522°C, respectively. The glass was characterized by measuring its thermal expansion coefficient, index of refraction and optical density. The glass was found to be transparent in the VIS spectral region. The structure of the synthesized glass corresponded to a mixture of linear polyphosphates and cyclic metaphosphates.

Original languageEnglish (US)
Pages (from-to)995-1001
Number of pages7
JournalJournal of the Serbian Chemical Society
Volume62
Issue number10
StatePublished - 1997
Externally publishedYes

Keywords

  • Dosimeter glass
  • Metaphosphate glass
  • Synthesis

ASJC Scopus subject areas

  • General Chemistry

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