Distillation Vs Deionization

There are so many persons confusing with the concept of distilled water and deionized water. Therefore for those to know clarity between these two terms i.e. distillation Vs deionization, differences between these two are necessary.

 Differences between distillation and deionization

Following are features of distillation Vs deionization.

Distillation                                                                          Deionization    

1.In the distillation process, impure                      1. In deionization, impure water is

water is boiled and steam                                             passed through anion and

produced is condensed on a cold surface             cation exchange resins to

(condenser) to give pure distilled water i.e.           produce ion free water.

water from which non-volatile organic acid

and inorganic material are removed.

2. Distillation does not remove dissolved ionized   2. Deionized water has a low

gases such as ammonia, carbon dioxide                           electrical conductivity ;

and chlorine.                                                                                    near-neutral pH and is

  free from water-soluble

salts but not pyrogen-free or sterile.

3.Distilled water should be clear and

odorless, and also pyrogen-free.