Vol. 376 (2017): Determinazione del carbonio disciolto in soluzioni alcaline mediante la tecnica della gas cromatografia

https://www.cs.ingv.it/collane/index.php/rt/api/v1/_uploadPublicFile Vol. 376 (2017): Determinazione del carbonio disciolto in soluzioni alcaline mediante la tecnica della gas cromatografia | Rapporti Tecnici INGV

Per determinare la concentrazione dello ione carbonato (CO32-) all’interno di una soluzione alcalina è classicamente utilizzata la titolazione acido-base. Conoscendo la concentrazione dell’acido (titolante) ed il volume immesso, è quindi possibile conoscere gli equivalenti del carbonato in soluzione (titolando). La tecnica classica si avvale dell’utilizzo di sostanze indicatrici, come la fenolftaleina ed il metilarancio; il primo rende la soluzione incolore, nel momento in cui tutto il carbonato viene convertito in bicarbonato (HCO3-), questo avviene ad un pH definito e viene chiamato...

Published: 2021-09-28

Determinazione del carbonio disciolto in soluzioni alcaline mediante la tecnica della gas cromatografia

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Marcello Liotta

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Determinazione del carbonio disciolto in soluzioni alcaline mediante la tecnica della gas cromatografia