17.6 pH Effects on Solubility
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Acidic, Basic, and Neutral Salts
Acidic salts are more soluble in basic solutions (pH>7), less soluble in acidic solutions (pH<7).
Basic salts are more soluble in acidic solutions (pH<7), less soluble in basic solutions (pH>7).
Neutral salts have a solubility that is largely unaffected by a change in pH.
| NEGLIGIBLE CATIONS | NEGLIGIBLE ANIONS |
|---|---|
| Group 1 metal ions (Li+, Na+, K+, Rb+, Cs+)Group 2 metal ions (Mg2+, Ca2+, Sr2+, Ba2+)Transition metals with +1 charge (such as Ag+) | Conjugate bases of strong acids(Cl-, Br-, I-, NO3-, ClO4-, ClO3-) |
| ALL OTHER CATIONS ARE ACIDIC | ALMOST ALL OTHER ANIONS ARE BASIC |
| HSO4- is Acidic |