Next to flammable liquid releases, hazmat responders will handle corrosive spills most frequently. Consequently, it behooves responders to know such things about corrosives as the pH scale and safe ...

The pH scale measures the acidity or alkalinity of a substance, ranging from 0 to 14, with values below 7 representing acidity, above 7 representing alkalinity, and 7 representing neutrality.

An acid-base indicator is a substance that changes color as the pH of the solution changes. Indicators work because they are weak acids which when in solution, exist in equilibrium with their ...