Distilled water does not conduct electricity. It is a pure form of water that contains no dissolved impurities and thus no free ions to conduct electricity. The pH of distilled water is neutral (neither acidic nor basic).
Basically, free ions are responsible for carrying an electric current through water. When a potential difference is applied across the water, free ions flow from the negative terminal to the positive terminal.
Distilled water contains only neutral water molecules with no charge. As a result, doesn’t conduct electricity.
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Why distilled water is a poor conductor of electricity?
Distilled water is the purest form of water because it contains no dissolved impurities. There are no free ions in it because it is made up of only H2O molecules held together by covalent bonds. As a result, it is a poor electrical conductor. However, salts like NaCl (Sodium chloride) or other impurities will cause it to act as a conductor because they contain Na+ and Cl–, which move through the water and allow an electric current to pass through them.
To conduct electricity, the solution must contain free electrons or free ions. The H2O molecules are completely unionised.
Normal water typically contains water molecules with dissolved impurities in the form of salts.
Process of Distillation
The process of distillation is used to separate a mixture of liquids based on variations in the boiling points (or volatility) of their individual components. A salt solution can be made water-free using this method. Due to the fact that the dissolved solute’s (salt’s) boiling point is higher than the solvent’s (water). As the solution is heated, solvent vapour evaporations take place. As it cools and condenses back into liquid, the gas escapes. The concentration of the solute rises as the amount of solvent in the remaining solution decreases.
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