You have been redirected to your local version of the requested page

Frequently asked questions in Karl Fischer titration – Part 1

Jul 20, 2020

Article

This article is Part 1 of a series.

Go to

Part 2

Having served at Metrohm for over 15 years, I've encountered numerous queries about Karl Fischer titration. Many of these questions, stemming from professionals worldwide, revolve around instrument preparation, troubleshooting, and the oven technique. To assist you better, I've curated the 20 most recurring questions. This FAQ is divided into two parts:

  • Part 1: Instrument Preparation and Handling
  • Part 2: Titration Troubleshooting and Oven Technique

Summary of questions in the FAQ (click to go directly to each question):

  1. How can I check if the electrode is working correctly?
  2. How long can an electrode be stored in KF reagent?
  3. Can the molecular sieve be dried and reused, or should it be replaced?
  4. How long does conditioning normally take?
  5. When conditioning, many bubbles form in the coulometric titration cell with a very high drift, also when using fresh reagent. What could be the reason for this effect?
  6. What is the best frequency to clean the Karl Fischer equipment?
  7. How do I clean the Karl Fischer equipment?
  8. Is it also possible to use a cleaning agent like «CIF» or toothpaste to clean the double Pt electrode?
  9. How do I clean a generator electrode with a diaphragm?

Instrument preparation and handling