Estudio Termodinamico De Parametros Involucrados en La Formacion De Los Precipitados De Arsenico (V) Con Bario(ii)

Solubility and stability of barium arsenate and barium hydrogen arsenate at 25°C

“…BaHAsO 4 ·H 2 O(c) was determined to be very soluble with a calculated mean K sp value of 10 −5.60 (10 −5.23 to 10 −5.89 ) using data from both precipitation and dissolution experiments. This value is approximately 19.04 log units higher than 10 −24.64 reported by Essington [1] and approximately 4.8 log units lower than 10 −0.8 reported by Orellana et al [9], but in accordance with those of Robins [6] and Davis [8] (10 −4.70 and 10 −5.51 , respectively).…”

“…(9). The standard free energy of reaction ( G • r ), in kJ/mol, is related to K sp at standard temperature (298.15 K) and pressure (0.101 MPa) by Eq.…”