ISO 2751:1973
$11.05
Urea for industrial use — Determination of the buffer coefficient — Potentiometric method
| Published By | Publication Date | Number of Pages |
| ISO | 1973-11 | 4 |
Applicable to solutions of conventional concentration. The principle consists in measurement, at (20 0.5) 0C, of the quantity of 0.05 N acid solution required to effect a pH change from 8 to 6 for a solution containing 100 g of urea in 1000 ml of solution. For the measurement a pH meter is used fitted with a glass electrode and a calomel electrode. The method has also been approved by the IUPAC.
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