Naslov
Dynamic equilibrium of ion exchange in the system lead-cation exchanger at different temperatures

Autori
Cerjan-Stefanović, Štefica ; Kaštelan-Macan, Marija

Izvornik
Fresenius' Zeitschrift für analytische Chemie (0016-1152) 331 (1988), 8; 811-813

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
dynamic equilibrium ; ion exchange ; system lead-cation exchanger ; different temperatures

Sažetak
The dynamic equilibrium of ion exchange in the system lead-cation exchanger at different temperatures is described in this paper. The relationship between the ion-exchange reaction in a column and temperature was examined in the system lead-ion exchanger resin Lewatit S 1080. Lead binding was performed with 0.01 mol/l HNO3 and elution with 4.0 mol/l HCl. The working temperature was gradually increased from 273 to 333 K. Thermostat columns were of own construction. The results were statistically analysed and graphically presented and the parameters obtained for elution curves were related to temperature. The elution curves were found to be temperature specific. The parameters such as elution band width, distribution factor, maximal volume of the eluate, maximal lead concentration in the eluate, confirmed this fact. At higher temperatures, larger volumes of elution solution were required for the elution of the same quantity of lead.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

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