Dehydration Kinetics of Tincalconite from Thermogravimetric Data

SEVİM F., HİLAL K., Demir F., HAYRETTİN E., AKTAN M.

JOURNAL OF THE CHEMICAL SOCIETY OF PAKISTAN, cilt.36, sa.2, ss.227-231, 2014 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 36 Sayı: 2
  • Basım Tarihi: 2014
  • Dergi Adı: JOURNAL OF THE CHEMICAL SOCIETY OF PAKISTAN
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.227-231
  • Anahtar Kelimeler: Tincalconite, Thermal Decomposition, Suzuki Method and Coats-Redfern Method, THERMAL-DECOMPOSITION, PARAMETERS, ULEXITE
  • Atatürk Üniversitesi Adresli: Evet

Özet

Kinetic parameters of tincalconite during thermal decomposition were explored with TGA data. Coats-Redfern and Suzuki methods were implemented for the kinetics analysis. Decomposition kinetics of tincalconite occurred in two steps and both suitably fit a first-order kinetic model. Activation energy and frequency factor were observed as 149.17 kJ.mol(-1) and 1.2x10(16) min(-1) for region I, and 5.45 kJ.mol(-1) and 5.23x10(8) min(-1) for region II, respectively with the Coats-Redfern method. Activation energy and frequency factor were observed as 60.95 kJ.mol(-1) and 67.21x10(5) min(-1), respectively for the Suzuki method.