Synthesis of pure potassium pentaborate (KB5) from potassium dihydrogen phosphate (KH2PO4) and colemanite

Karagöz Ö., Kuşlu S.

CHEMICAL PAPERS, cilt.75, ss.5963-5969, 2021 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 75
  • Basım Tarihi: 2021
  • Doi Numarası: 10.1007/s11696-021-01771-z
  • Dergi Adı: CHEMICAL PAPERS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Chemical Abstracts Core
  • Sayfa Sayıları: ss.5963-5969
  • Anahtar Kelimeler: Potassium dihydrogen phosphate, Potassium pentaborate, Colemanite, Crystallization, Slow evaporation solution method, Optimization, OPTICAL-PROPERTIES, KINETICS, GROWTH, DEHYDRATION, DISSOLUTION
  • Atatürk Üniversitesi Adresli: Evet

Özet

In this study, after specifying theoretical reaction conditions required for the chemical reaction, potassium pentaborate (KB5) was synthesized from the potassium dihydrogen phosphate (KH2PO4) solution and raw colemanite (Ca2B6O11 center dot 5H(2)O) ore. The slow evaporation solution method was used at 25 degrees C. The effect of time (6-18 h) on crystallization was studied. Synthesized minerals were characterized by X-ray diffraction (XRD), Fourier transform infrared (FT-IR), RAMAN spectroscopy, and scanning electron microscopy (SEM). The results according to XRD, FT-IR, RAMAN, and SEM analyses proved that the synthesized product was potassium pentaborate (KB5O8 center dot 4H(2)O) mineral with ICSD: 96-026-1927 pdf code. As a result, the cost was reduced by using raw boron ore, colemanite, and KB5 was obtained in a shorter time and at a lower temperature.