- Tytuł:
- Synthesis and solubility of brompyromorphite Pb5(PO4)3Br
- Autorzy:
-
Janicka, Urszula
Bajda, Tomasz
Manecki, Maciej - Powiązania:
- https://bibliotekanauki.pl/articles/127627.pdf
- Data publikacji:
- 2012
- Wydawca:
- Polskie Towarzystwo Mineralogiczne
- Tematy:
-
lead
phosphate
apatite
dissolution
brompyromorphite
solubility product - Opis:
- The bromide analogue of pyromorphite Pb5(PO4)3Br was synthesized and characterized by X-ray diffraction, infrared spectroscopy and scanning electron microscopy. The solubility of the brompyromorphite was measured at 25°C and pH values of 2.0, 2.6 and 3.2. For the 3 pH measurements, the average solubility product, log KSP, for the reaction Pb5(PO4)3Br 5Pb2+ + 3PO4 3– + Br– at 25ºC is –77.38 ± 0.70. The free energy of formation, Gf,298, calculated from this measured solubility product is –3724.7 ± 4.3 kJ mol−1. These results confirm that brompyromorphite is more soluble than pyromorphite.
- Źródło:
-
Mineralogia; 2012, 43, 1/2; 129-135
1899-8291
1899-8526 - Pojawia się w:
- Mineralogia
- Dostawca treści:
- Biblioteka Nauki
Artykuł