Mechanochemical Synthesis of Polymorphic Urea ⋅ Adipic Acid Cocrystal as a Sustained-Release Nitrogen Source

ChemSusChem. 2022 Feb 8;15(3):e202102445. doi: 10.1002/cssc.202102445. Epub 2021 Dec 23.

Abstract

A 2 : 1 urea ⋅ adipic acid cocrystal was obtained in two polymorphic forms (Form I reported earlier, and Form II synthesized in this study) using mechanochemistry as well as solution crystallization. Lower solubility and leaching study showed the newly synthesized urea ⋅ adipic acid 2 : 1 cocrystal to be an efficient sustained-release nitrogen fertilizer compared to commercially available urea.

Keywords: cocrystal; fertilizer; leaching; mechanochemistry; polymorph.

MeSH terms

  • Adipates
  • Delayed-Action Preparations
  • Nitrogen*
  • Solubility
  • Urea*

Substances

  • Adipates
  • Delayed-Action Preparations
  • adipic acid
  • Urea
  • Nitrogen