| Solubility Product | Ionic Product |
| (i) It is the product of concentration of ions of electrolyte, each of electrolyte, each of the coefficients in the balanced chemical equation in a saturated solution. | (i) It is the product of concentration of ions of electrolyte, each raised to the power of the coefficients in the balanced chemical equation in a solution of any concentration. |
| (ii) It is applicable only to saturated solutions. | (ii) It is applicable to all types of solutions of any concentration. |
| (iii) At constant temperature, its value is constant for given electrolyte. | (iii) The value keeps changing with concentration. |