Chemistry: analytical and immunological testing – Determination of water – By use of a karl fischer reagent
Patent
1984-08-06
1986-10-28
Turk, Arnold
Chemistry: analytical and immunological testing
Determination of water
By use of a karl fischer reagent
204 1T, G01N 3318
Patent
active
046199004
ABSTRACT:
The determination of water by the Karl Fischer method is carried out using a reagent containing sulfur dioxide, iodine and a base. The determination is carried out in a liquid medium in which the sample under investigation has been dissolved. The solvents used are, above all, methanol and 2-methoxyethanol. The presence of a further solvent which enables the reaction to take place without interference is advantageous. Solvents suitable for this purpose are lower alkanols which are substituted by halogen atoms and/or phenyl radicals. These alkanols are also employed as the solvent in Karl Fischer reagents.
REFERENCES:
patent: 4056403 (1977-11-01), Cramer et al.
patent: 4351744 (1982-09-01), Muroi et al.
patent: 4354853 (1982-10-01), Dahms
patent: 4368105 (1983-01-01), Muroi et al.
Karl Fischer, Angew, Chemie 48, pp. 394-396, (1935).
Chemical Analysis, vol. 5, Aquametry, Part III, pp. 100-101 (1980).
Peters et al., Anal. Chem. 27, pp. 450-453 (1955).
Kellum et al., Analytical Chemistry, vol. 42(12), pp. 1428-1429, Oct., 1970.
Petrov et al., Journal of Analytical Chemistry of the USSR, vol. 35(11), pp. 1426-1429, Nov., 1980.
Hoechst Aktiengesellschaft
Turk Arnold
LandOfFree
Solvent for the determination of water by the Karl Fischer metho does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Solvent for the determination of water by the Karl Fischer metho, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Solvent for the determination of water by the Karl Fischer metho will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1346480