The boric acid indicator solution is mainly used in analytical chemistry and biochemistry. Here it serves as a pH indicator for determining the acid-base equilibrium in various solutions and experiments. Its special suitability lies in its sensitivity to pH changes, especially in the range between pH 4.4 and 6.2.

Chemically, the boric acid indicator solution consists of boric acid and the Tashiro indicator dissolved in a mixture of distilled water and ethanol. Boric acid is a weak acid, while the Tashiro indicator serves as a pH-sensitive dye.

In its function as a pH indicator, the boric acid indicator solution responds to changes in the hydrogen ion concentration content in the solution, resulting in a change in its color. This allows accurate determination of the pH of the solution.

In medical diagnostics and life sciences, boric acid indicator solution can be used to study and quantify acid-base reactions. Its application also extends to areas such as determining the pH of body fluids or in microbiological research.