Development of Karl Fischer Reagents

I-1. Questions & Answers about Karl Fischer Reagents
2. Karl Fischer Reagent Products
Q6
22
What volumetric titration reagents are available? Please explain
the types of reagents and their uses, and the methods employed.
Mitsubishi Chemical Corporation has a range of products to suit every
purpose. Its products can be broadly divided into the following four
categories.
�Mitsubishi Karl Fischer Reagents
Titrant
Can be used in various titer according to anticipated
moisture content
�Mitsubishi Dehydrated Solvents
They are suitable as titration solvents for the Karl Fischer
reaction, to dissolve or disperse a sample in order to extract
water.
�Mitsubishi Standard Water Methanol
This is used to determine the titer of a Karl Fischer reagent.
The type used depends on the titer. Water methanol can also
be used a titration agent for back titration.
�Mitsubishi Standard Liquid
This is used to determine the titer of a Karl Fischer reagent.
Karl Fischer reagents and dehydrated solvents have traditionally been
available in both pyridine types and pyridine-free types, which do not have
the pyridine odor. There is no significant difference in performance between
the two types, and they can be used interchangeably.