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 ...

USP<301> describes a back-titration to determine the acid-neutralizing capacity (ANC). The method is very fast, easy, and reliable. The Metrohm Application Note AN T-192 includes the effective ...

When acidic materials are spilled, the clean-up procedure involves adding a base chemical to neutralize the acid. Up to a point, the more base added, the more neutral and less toxic the spill becomes.