Humidity Measurement Based on Karl Fischer Titration

Authored by: Ghenadii Korotcenkov

Handbook of Humidity Measurement

Print publication date:  February  2019
Online publication date:  January  2019

Print ISBN: 9781138300224
eBook ISBN: 9780203731888
Adobe ISBN:

10.1201/b22370-8

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Abstract

The Karl Fischer titration method is the most common chemical method for determining moisture. Karl Fischer titration is a classic titration method in analytical chemistry that uses coulometric or volumetric titration to determine the trace amounts of water in a sample. Water is titrated using the Karl Fischer’s reagent, which consists of iodine, sulfur dioxide, a basic buffer, and a solvent. This chapter gives a description of this method, including the configuration of the measurement cell, the solutions used, and the methods for estimating the moisture level of the test samples. Advantages and disadvantages of this method, as well as the accuracy of the measurement, are also analyzed in this chapter.

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