PROCESS FOR THE DETERMINATION OF THE TOTAL ACIDITY NUMBER (TAN) OF A MINERAL INSULATING OIL

The method comprises the steps of: pouring in a container a sample of oil and a pre-established amount of a solution suitable for extracting the acid fraction of the sample; stirring the content of the container and waiting for the separation from the sample of an extract phase; dosing in the extrac...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	TUMIATTI, VANDER, TUMIATTI, MICHELA, ROGGERO, CARLO MARIA, DI CARLO, STEFANO
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The method comprises the steps of: pouring in a container a sample of oil and a pre-established amount of a solution suitable for extracting the acid fraction of the sample; stirring the content of the container and waiting for the separation from the sample of an extract phase; dosing in the extract phase a titrant solution of KOH until an acid-base indicator present therein changes color; and calculating the TAN on the basis of the volume of dosed titrant solution according to the formula: TAN (mgKOH/goil) = (V x 56, 1 x M)/m wherein V is the volume of dosed titrant solution expressed in ml, 56,1 is the molecular weight of KOH, M is the titre of the KOH solution expressed in moles per litre and m is the mass of the sample expressed in g.