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[Synthesis, characterization and study on vibration spectra of potassium triborate].

Abstract
Potassium triborate was synthesized with potassium carbonate and boric acid by controlling suitable feed mixture ratio, reaction temperature and dehydration temperature in the self-designed boiling reactor. According to chemical analysis, the formula of the synthetics was monohydrate potassium triborate (KB3O5 x H2O). It's structure was characterized by XRD, FTIR, Raman and TG, and it was found by XRD analysis that the synthetics was amorphous solid. FTIR and Raman spectroscopy anal-ysis show that three coordination B(3) -O bond, four coordination B(4) -O bond, and hydroxy and triborate anions existed in the formula of the synthetics. Thermogravimetric (TG) analysis show that the groups which can lose mono-water existed in the formula of the synthetics, and structural formula of the synthetics was deduced as K[B3O4 (OH)2]. Vibration spectra of the synthetics were studied, including FTIR and Raman spectroscopy. Vibration absorption peaks of some main groups of the synthetics were investigated, including three coordination B(3) -O bond and four coordination B(4) -O bond that are the main existing forms of boron atoms in the synthetics as well as other groups, and each vibration absorption peak was assigned.
AuthorsJin-Ping Zhang, Yong Sun, Gang Yang, Zuo-Hu Li
JournalGuang pu xue yu guang pu fen xi = Guang pu (Guang Pu Xue Yu Guang Pu Fen Xi) Vol. 27 Issue 7 Pg. 1351-4 (Jul 2007) ISSN: 1000-0593 [Print] China
PMID17944412 (Publication Type: English Abstract, Journal Article)
Chemical References
  • Borates
  • Boric Acids
  • Carbonates
  • potassium carbonate
  • boric acid
  • Potassium
Topics
  • Borates (chemical synthesis, chemistry)
  • Boric Acids (chemistry)
  • Carbonates (chemistry)
  • Models, Chemical
  • Molecular Structure
  • Potassium (chemistry)
  • Spectroscopy, Fourier Transform Infrared
  • Spectrum Analysis (methods)
  • Spectrum Analysis, Raman
  • Thermogravimetry
  • Vibration
  • X-Ray Diffraction

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