- Tytuł:
- Synthesis and solubility of hopeite Zn3(PO4)2·4H2O
- Autorzy:
-
Bajda, Tomasz
Rogowska, Melania
Pawłowska, Agnieszka - Powiązania:
- https://bibliotekanauki.pl/articles/46220160.pdf
- Data publikacji:
- 2023
- Wydawca:
- Polskie Towarzystwo Mineralogiczne
- Tematy:
-
zinc
phosphate
apatite
dissolution
solubility product - Opis:
- Minerals from the phosphate groups are used in environmental engineering as thermodynamically stable vehicles for heavy metals such as zinc. The hopeite Zn3(PO4)2·4H2O was synthesized and characterized by X-ray diffraction and scanning electron microscopy. The solubility of the hopeite was measured at 25°C. The average solubility product, log Ksp, for the reaction Zn3(PO4)2·4H2O ⇔ 3Zn2+ + 2PO4 3− + 4H2O at 25°C is –35.72 ± 0.03. The free energy of formation, ΔG°f ,298, calculated from this measured solubility product is –3597.4 ± 1.0 kJ mol−1. The immobilization of zinc in the hopeite structure offers the possibility of developing an effective method for removing Zn from wastewater, water and soils.
- Źródło:
-
Mineralogia; 2023, 54, 1; 78-81
1899-8291
1899-8526 - Pojawia się w:
- Mineralogia
- Dostawca treści:
- Biblioteka Nauki
Artykuł