odkyselenýodkyselenáodkyselené

The term "odkyselený" (masculine), "odkyselená" (feminine), and "odkyselené" (neuter) translates to "deacidified" in English and refers to a process used primarily in the preservation of paper and other cellulose-based materials. This method involves chemically neutralizing acidic compounds that form over time in paper, particularly in older documents, books, and archival materials. Acidic degradation accelerates the breakdown of cellulose fibers, leading to brittleness, yellowing, and eventual deterioration.

The deacidification process typically involves treating the material with alkaline substances such as magnesium carbonate, calcium carbonate, or sodium bicarbonate. These compounds react with acidic components like acetic acid, formic acid, or sulfuric acid, thereby stabilizing the pH level of the paper. This stabilization slows down further degradation, extending the lifespan of the material and preserving its structural integrity.

Deacidification is commonly applied in libraries, museums, and archives to protect valuable historical and cultural documents. While the process does not reverse existing damage, it effectively halts further deterioration. The method is non-invasive and often used alongside other conservation techniques, such as environmental control (e.g., regulating humidity and temperature) to ensure long-term preservation. Proper deacidification requires careful handling to avoid over-alkalinization, which can also damage paper.