Which additive is included in 10% Neutralized Formalin to help neutralize acids?

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Multiple Choice

Which additive is included in 10% Neutralized Formalin to help neutralize acids?

Explanation:
Neutralizing acids in fixatives is about buffering the solution so the pH stays around neutral, which helps preserve tissue structure and staining quality. In 10% Neutralized Formalin, calcium carbonate (or magnesium carbonate) is added as a mild base. It reacts with any formic or other acids that form during fixation, neutralizing them and keeping the pH near 7. This buffering action prevents acid-induced damage and helps maintain consistent staining results. Other buffering agents, like certain phosphate-based buffers, are used in different formulations, but the traditional neutralized formalin uses calcium or magnesium carbonate for this purpose.

Neutralizing acids in fixatives is about buffering the solution so the pH stays around neutral, which helps preserve tissue structure and staining quality. In 10% Neutralized Formalin, calcium carbonate (or magnesium carbonate) is added as a mild base. It reacts with any formic or other acids that form during fixation, neutralizing them and keeping the pH near 7. This buffering action prevents acid-induced damage and helps maintain consistent staining results. Other buffering agents, like certain phosphate-based buffers, are used in different formulations, but the traditional neutralized formalin uses calcium or magnesium carbonate for this purpose.

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