Used in analytical chemistry to detect the presence of glycerol or acetic acid in a sample. The test solution facilitates a visible reaction, such as cloudiness or precipitate formation, when glycerol reacts with acetic acid under specific conditions. Commonly applied in quality control laboratories to verify the purity of raw materials or to confirm chemical reactions in organic synthesis. Also utilized in educational settings for demonstrating esterification or condensation reactions. Easy to prepare and use, making it suitable for routine qualitative analysis.