pHneutral
pHneutral is a term used to describe a state or condition in which a solution has a neutral pH, typically around 7 at standard room temperature. The pH scale runs from 0 to 14 and expresses how acidic or basic a solution is. pH is defined as the negative logarithm of the hydrogen ion activity, so a pH of 7 corresponds to a balance between hydrogen ions (H+) and hydroxide ions (OH−).
Neutrality is temperature dependent. In pure water at 25°C, the concentrations of H+ and OH− are equal,
Measurement of pH is typically done with a calibrated pH meter or with pH indicator strips. Accurate
Applications of the concept include cleaning products, cosmetics, and agricultural formulations, where “pHneutral” labeling signals mildness