Sodium Dihydrogen Phosphate Starting From Sodium Chloride and Orthophosphoric Acid Via Cation Resin Exchange

Doan Pham Minh (1) , Ange Nzihou (1) , Patrick Sharrock (1)

1 RAPSODEE - Centre de recherche d'Albi en génie des procédés des solides divisés, de l'énergie et de l'environnement

Sodium phosphates are generally synthesized by neutralization of orthophosphoric acid with sodium hydroxide. In this paper, we communicate a new synthesis process, wherein sodium dihydrogen phosphate can be obtained from sodium chloride and orthophosphoric acid, using cation resin exchange at room operational conditions. This opens a new concept for the design of environmentally friendly processes in this inorganic synthesis field.

Mots clés: Synthesis design; ion exchange; cations; sodium dihydrogen phosphate

Domaines: Sciences de l'ingénieur [physics]

Doan Pham Minh, Ange Nzihou, Patrick Sharrock. Sodium Dihydrogen Phosphate Starting From Sodium Chloride and Orthophosphoric Acid Via Cation Resin Exchange. Phosphorus, Sulfur, and Silicon and the Related Elements, 2015, 190 (11), p. 1743-1748. ⟨10.1080/10426507.2015.1024314⟩. ⟨hal-01609203⟩