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The Karl Fischer Titration is a titration method for measuring water content in basically all types of substances. It was invented in 1935 by the German chemist Karl Fischer. The Karl Fischer Titration is based on an iodine / iodid reaction: The water reacts with iodine. The endpoint of the titration is reached when all the water is consumed. The process uses an organic base (B), sulphur dioxide, iodine and an alcohol. The original Karl Fischer method used pyridine as organic base and methanol a