Degasification is the removal of dissolved gases from liquids, especially water or aqueous solutions, in the fields of science and engineering. There are numerous possible methods for such removal of gases. The formation of gas bubbles when a liquid is frozen can also be undesirable, necessitating degassing. Solubility of gases decreases with an increase in temperature, therefore dissolved gases can be removed from liquids by heating.
Generally, we know that the higher the temperature of a solution grows, the less a gas dissolves provided it doesn’t react with the solvent. Apparently, heating a solution can expel the residual gas. Ultrasonication and stirring at high heat are also powerful. This method requires no special apparatus and is easy to handle. In some cases, though, the solvent and the solute decompose, react with each other, or evaporate at high temperature, and the rate of discharge is less reproducible.