Chemistry: analytical and immunological testing – Determination of water – By use of a karl fischer reagent
Patent
1980-11-26
1983-04-05
Schor, Kenneth M.
Chemistry: analytical and immunological testing
Determination of water
By use of a karl fischer reagent
G01N 3318
Patent
active
043789722
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.
REFERENCES:
patent: 2967155 (1961-01-01), Blomgren et al.
patent: 3656907 (1972-04-01), Delmonte
patent: 3661797 (1972-05-01), Meloan et al.
patent: 4005983 (1977-02-01), Dahms
Riedel-De Haen Aktiengesellschaft
Schor Kenneth M.
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