Karl fischer reagent

Details Karl fischer reagent Karl fischer reagent

2005-09-20

2005-09-20

Gakh, Yelena G. (Department: 1743)

Chemistry: analytical and immunological testing

Determination of water

By use of a karl fischer reagent

Reexamination Certificate

active

06946298

ABSTRACT:
A reagent for the determination of water content of a sample according to the Karl Fischer method is disclosed. The reagent comprises a base component comprised of a mixture of imidazole and a substituted imidazole. Preferably, the Karl Fischer reagent is a one component reagent comprising imidazole and 2-methylimidazole.

REFERENCES:
patent: 4378972 (1983-04-01), Scholz
patent: 4851352 (1989-07-01), Fischer et al.
patent: 5139955 (1992-08-01), Scholz
patent: 19740965 (1999-03-01), None
patent: 0127740 (1984-12-01), None
Sherman et al. Stoichometry and chemical metrology: Karl Fischer reagent; Accreditation and Quality Assurance, May 1999, v. 4, No. 6, pp. 230-234, Abstract and tecxt search from Google (see page link below).
http://www.springerlink.com/app/home/contribution.asp?wasp=d48072eewh4uvl493q7p&referrer=parent&backto=issue,6,16;journal,53,83;linkingpublicationresults,1:100393,1.
Silke Grünke, Study of Side Reactions (thesis), Chemistry Department of the University of Hannover, 1999, Chapter 7, 132-145.
Eugen Scholz, Karl Fischer Titration Determination of Water, Springer-Verlag, 1984, vol. 20, 1-138.

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