Table 1 Chemical properties of phosphorus and arsenic
From: Review of interactions between phosphorus and arsenic in soils from four case studies
Stable oxidation states in environment | Acidity constants | Crystal radiusa | |
|---|---|---|---|
Phosphorus | P5+ ([Ne]3s03p0) | H3PO4: 10−2.15, 10−7.2, 10−12.35 | Phosphate 31 pm |
Arsenic | As3+ ([Ar]3d104s24p0) As5+ ([Ar]3d104s04p0) | H3AsO3: 10−9.2 H3AsO4: 10−2.19, 10−6.94, 10−11.5 | Arsenate 47.5 pm |