Stability of alumina suspensions in the presence of Tiron
Апстракт
The stability of alumina suspensions in the presence of Tiron was studied and discussed in the light of surface properties of alumina powder used, ionization chemistry of Tiron, and sedimentation behavior of the suspensions. The point of zero charge of alumina with and without addition of Tiron was determined using a batch equilibration method. The sedimentation of the suspensions was evaluated via screen sedimentation tests as a function of pH and Tiron concentration. The dissociation constant, pK(al), of the hydroxyl groups of the Tiron molecule was determined by potentiometric titration carried out in water and KNO3 as a background electrolyte. Tiron was shown to adsorb specifically onto the alumina surface in the examined pH range 4-10, but impart stability to the suspensions only at pH GT = 6. (C) 2006 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
Кључне речи:
suspensions / surfaces / chemical properties / Al2O3Извор:
Ceramics International, 2008, 34, 1, 23-26
DOI: 10.1016/j.ceramint.2006.07.010
ISSN: 0272-8842
WoS: 000251858500004
Scopus: 2-s2.0-35548961794
Колекције
Институција/група
VinčaTY - JOUR AU - Gulicovski, Jelena J. AU - Čerović, Ljiljana S. AU - Milonjić, Slobodan K. PY - 2008 UR - https://vinar.vin.bg.ac.rs/handle/123456789/3334 AB - The stability of alumina suspensions in the presence of Tiron was studied and discussed in the light of surface properties of alumina powder used, ionization chemistry of Tiron, and sedimentation behavior of the suspensions. The point of zero charge of alumina with and without addition of Tiron was determined using a batch equilibration method. The sedimentation of the suspensions was evaluated via screen sedimentation tests as a function of pH and Tiron concentration. The dissociation constant, pK(al), of the hydroxyl groups of the Tiron molecule was determined by potentiometric titration carried out in water and KNO3 as a background electrolyte. Tiron was shown to adsorb specifically onto the alumina surface in the examined pH range 4-10, but impart stability to the suspensions only at pH GT = 6. (C) 2006 Elsevier Ltd and Techna Group S.r.l. All rights reserved. T2 - Ceramics International T1 - Stability of alumina suspensions in the presence of Tiron VL - 34 IS - 1 SP - 23 EP - 26 DO - 10.1016/j.ceramint.2006.07.010 ER -
@article{ author = "Gulicovski, Jelena J. and Čerović, Ljiljana S. and Milonjić, Slobodan K.", year = "2008", abstract = "The stability of alumina suspensions in the presence of Tiron was studied and discussed in the light of surface properties of alumina powder used, ionization chemistry of Tiron, and sedimentation behavior of the suspensions. The point of zero charge of alumina with and without addition of Tiron was determined using a batch equilibration method. The sedimentation of the suspensions was evaluated via screen sedimentation tests as a function of pH and Tiron concentration. The dissociation constant, pK(al), of the hydroxyl groups of the Tiron molecule was determined by potentiometric titration carried out in water and KNO3 as a background electrolyte. Tiron was shown to adsorb specifically onto the alumina surface in the examined pH range 4-10, but impart stability to the suspensions only at pH GT = 6. (C) 2006 Elsevier Ltd and Techna Group S.r.l. All rights reserved.", journal = "Ceramics International", title = "Stability of alumina suspensions in the presence of Tiron", volume = "34", number = "1", pages = "23-26", doi = "10.1016/j.ceramint.2006.07.010" }
Gulicovski, J. J., Čerović, L. S.,& Milonjić, S. K.. (2008). Stability of alumina suspensions in the presence of Tiron. in Ceramics International, 34(1), 23-26. https://doi.org/10.1016/j.ceramint.2006.07.010
Gulicovski JJ, Čerović LS, Milonjić SK. Stability of alumina suspensions in the presence of Tiron. in Ceramics International. 2008;34(1):23-26. doi:10.1016/j.ceramint.2006.07.010 .
Gulicovski, Jelena J., Čerović, Ljiljana S., Milonjić, Slobodan K., "Stability of alumina suspensions in the presence of Tiron" in Ceramics International, 34, no. 1 (2008):23-26, https://doi.org/10.1016/j.ceramint.2006.07.010 . .