Why distilled water has a pH of less than 7.0

The reason distilled water has a pH of <7.0 is due to the high purity of the distilled water, it lacks minerals and other contaminants which normally act as a buffer, therefore it tends to absorb CO2 gas from the atmosphere forming carbonic acid and subsequently making the water more acidic. In theory distilled water has a pH value of …

Purified Water Types

Demineralized water is a category, it doesn’t refer to the type of purification. Deionised, distilled and ultrapure all demineralized (I.e. minerals removed). The difference between them is the methods used and therefore the output will differ in quality. Types of Purified Water – There are three main types of Purified Water. 1. Deionised water Deionised water …