Alcoholic saline solution with 1.5% NaCl is a chemical solution used in medical diagnostics, histology and scientific laboratories. It consists of denatured ethanol, distilled water and sodium chloride. The solution is an important component of staining kits such as the Congo Red to HERTIE staining kit.

The chemical properties of the solution are based on the combination of ethanol and sodium chloride, which creates an osmotically effective environment. These properties enable effective dehydration of tissue specimens and improved staining.

The use of alcoholic saline with 1.5% NaCl can lead to dehydration of tissue specimens in histological processes. It supports the preparation of tissue specimens for staining with Congo red and improves the quality of staining by preserving the morphology of cells and extracellular structures.