Aliphatic amine-containing Karl Fischer titration agent and meth

Details Aliphatic amine-containing Karl Fischer titration agent and meth Aliphatic amine-containing Karl Fischer titration agent and meth

1982-08-27

1984-01-31

Padgett, Benjamin R.

Chemistry: analytical and immunological testing

Determination of water

By use of a karl fischer reagent

73 73, 116 26, G01N 3318

Patent

active

044290489

ABSTRACT:
For the titrimetric determination of small amounts of water, the Karl Fischer reagent is used which contains sulfur dioxide, iodine and pyridine as essential components. Replacement of pyridine by specific nitrogen bases is advantageous. Particularly suitable are selected aliphatic amines and nitrogen-containing heterocyclic compounds, especially imidazoles. The pyridine-free titration agent is distinguished by high storage stability; it can be used as bicomponent or monocomponent reagent.

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Analytical Chemistry vol. 28, No. 7, 1166-1168 (1956).
J. Am. Chem. Soc. vol. 61, 2407-2412 (1939).
Analytica Chimica Acta vol. 94, 395-403 (1977).

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