ISSN:
1572-8927
Keywords:
Stability constants
;
potentiometry
;
ion-selective electrodes
;
ionic medium method
;
sodium sulfate
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract The ion pair formation of NaSO 4 − has been investigated potentiometrically in 1M NaClO 4 medium at 25°C using two different sodium-selective indicator electrodes and a perchlorate reference electrode. The stability constant of NaSO 4 − obtained in this study was $$\beta _{{\rm N}aSO_4^ - } = 4.1 \pm 0.4$$ . Although $$\beta _{{\rm N}aSO_4^ - } $$ is small, it lowers the free sulfate concentration drastically in 1M NaClO 4 medium and is a factor which should be considered in the use of NaClO 4 as inert supporting electrolyte.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00647860
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