Method and reagent for the determination of water
AssigneeRiedel-de Haen Aktiengesellschaft
InventorsHermann Matschiner, Claus-Peter Maschmeier
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Abstract
In the method for the determination of water, the sample is admixed with a molar 1:1 adduct of sulphur dioxide with an amine having a pK.sub.A of more than 6, dissolved in an aprotic solvent, and is oxidized with iodine.
Claims15
A method for the quantitative determination of water in a water-containing sample, wherein the sample is mixed with about a molar 1:1 adduct of sulphur dioxide with an amine having a pK.sub.A of more than about 6, dissolved in an aprotic solvent excluding alcohols, is oxidized with iodine, the quantity of iodine consumed in said oxidation step is determined, and the quantity of water in said sample is calculated based upon said quantity of iodine consumed.
The reagent comprising a solvent component and an iodine solution as a titrant component for the quantitative determination of water in a water-containing sample, wherein said solvent component excludes alcohols and contains about a molar 1:1 adduct of sulphur dioxide to an amine having a pK.sub.A of more than about 6 in an aprotic solvent.
The reagent for the quantitative determination of water in a water-containing sample, comprising a molar 1:1 adduct of sulphur dioxide to an amine having a pK.sub.A of more than 6 in an aprotic solvent excluding alcohols and iodine or an iodide in an aprotic solvent excluding alcohols.
Dependencies are inferred from the claim text.