Zinc chloride acetic acid formalin is a fixing solution used in histology and cytology for the preservation of cell and tissue specimens. This fixing solution allows optimal preservation of morphology and cell structures and helps to improve the quality of subsequent staining and analysis.

The solution consists of zinc chloride, acetic acid and formalin. Zinc chloride acts as a preservative and stabilizes tissue samples, while acetic acid regulates the pH of the solution and helps preserve cell structures. Formalin is a widely used fixative that cross-links proteins, stabilizing cellular structures.

The use of zinc chloride-acetic acid-formalin offers several advantages over other fixative solutions. It provides excellent preservation of cellular and subcellular structures, improves sample durability, and allows better visualization of cellular components in subsequent staining. In addition, this fixative solution can be used in various applications, such as histology, cytology and pathology. However, it is important to observe the appropriate safety measures and handling recommendations when using this solution.