1. |
Particle size |
As particle size is reduced, the surface area will increase, and the larger surface area will provide a greater interaction of the solute molecules with the solvent. |
[34] |
2. |
Temperature |
Solubility will be increased when the temperature rises and the solution process absorbs energy; if the solution process generates energy, then solubility will decrease with an increase in temperature. |
[35] |
3. |
Pressure |
Pressure will only affect the solubility of gaseous solutes and have no effect on solid and liquid solutes. A decrease in pressure causes a decrease in solubility, and an increase in pressure causes an increase in the solubility of gaseous solutes. |
[35] |
4. |
Nature of solute and solvent |
Properties of solute, as well as the solvent, have drastic effects on solubility. |
[36] |
5. |
Polarity |
Substances with the same type of polarity will be soluble in one another, “similia similibus solvuntur”. Polar solute molecules or ions will dissolve in polar solvents, while non-polar solute molecules will dissolve in non-polar solvents. |
[37] |
6. |
Polymorphism |
Polymorphs differ in melting points. Different polymorphs have different solubilities as solubility and melting point are linked. |
[38] |
7. |
Stirring |
Stirring ensures that new solvent components come into contact with the solid and liquid solutes, resulting in increasing solubility. |
[39] |