Abstract
Although ammonium nitrate is at best sparingly soluble in typical organic solvents, it may be readily solubilized through the addition of chelating agents such as crown ethers and polyethylene glycols. With suitable choice of solvent and chelating agent, addition of a precipitating solvent leads to the crystallization of uncomplexed ammonium nitrate from such solutions. Crystalline ammonium nitrate obtained through this process of “complexation-mediated crystallization” displays a variety of morphologies, with the crystal form dependent on the nature of both the solvent and the chelating agent.
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