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ISO 2753:1973 PDF
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Urea for industrial use — Determination of water content — Karl Fischer method
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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| Edition | 1973 |
|---|---|
| Published Date | 1973 |
| Published By | International Standardization Organisation |
| Page Count | 1 |
