Follow us on:

2016 Yuan Precise Urea-Water Eutectic Composition by Temperature-Resolved Second Harmonic Generation

The use of temperature-resolved second harmonic generation (TR-SHG) to determine the accurate eutectic composition between urea and water is illustrated. The TR-SHG results were confirmed with differential scanning calorimetry and thermal stage microscopy observations. Due to the sensitivity of this technique, by precisely differentiating the liquidus temperature and the eutectic temperature, the eutectic composition was determined to be between 32.8 and 32.9 wt %, compared to 32.5 wt% for the commercial aqueous urea solution marketed for NOconcentration reduction. This study demonstrates that TR-SHG is a promising tool for precisely determining the eutectic compositions of binary systems involving at least one non-centrosymmetric phase.


Share this on:
UreaKnowHow is an independent group of nitrogen fertilizer specialists with an impressive number of years experience in designing, maintaining and operating nitrogen fertilizer plants.

Solution Providers offer their solutions to improve our member’s plants performance.