ISO 2753:1973
$7.80
Urea for industrial use — Determination of water content — Karl Fischer method
| Published By | Publication Date | Number of Pages |
| ISO | 1973-12 | 3 |
Specifies the manner in which this method is to be applied in a reaction of any water present in urea with a solution of iodine and sulphur dioxide in a mixture of pyridine and methanol (Karl Fischer reagent). This reagent is first standadized by titration with a precisely known mass of water. The end point of the reaction is read by the direct visual or direct electrometric method. The method has also been approved by the IUPAC.
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