Mechanochemical approach to synthesize citric acid-soluble fertilizer of dittmarite (NH₄MgPO₄·H₂O) from talc/NH₄H₂PO₄ mixture.

ABSTRACT: In this study, a citric acid-soluble fertilizer of dittmarite (NH₄MgPO₄·H₂O) was synthesized by balling talc with NH₄H₂PO₄. The effects of ball milling speed and milling time on the dissolution rates of N, P and Mg in deionized water and 2% citric acid were explored. Characterization technologies such as X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TG) and Scanning electron microscopy (SEM) were applied to test the prepared samples. In water, the prepared dittmarite was changed into struvite (NH₄MgPO₄·6H₂O) with almost no N, P or Mg release, while the dissolution rates of nutrient elements reached almost 100% in 2% citric acid. The prop

SUBMITTER: Tan Y 

PROVIDER: S-EPMC9053601 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature