De-Acidification

De-Acidification

Definition

De-Acidification is the process of treating paper, mat board, or other art materials to neutralize existing acids and prevent further acid-related deterioration, thereby extending the life of the artwork or document.

Purpose and Benefits

• Neutralizes acids in paper and mat boards to reduce brittleness and yellowing over time.
• Helps preserve artwork, documents, and books for long-term storage.
• Minimizes chemical reactions that could lead to discoloration, staining, or weakening of fibers.

Methods

• Spray or immersion treatments: Materials are exposed to alkaline solutions or aerosols.
• Buffering: Incorporating alkaline substances, such as calcium carbonate, into the material to maintain a neutral or slightly alkaline pH.
• Professional Conservation Treatments: Often performed in controlled environments by trained conservators to ensure even neutralization without damage.

Best Practices

• Always consult a conservator before treating valuable or fragile works.
• Use de-acidification only on materials that are compatible with alkaline treatments.
• Combine de-acidification with proper storage solutions, like archival storage, to maximize longevity.
• Document treatments to maintain provenance and care records for the artwork or document.

Related Terms

• Buffering
• Ph
• Neutralize
• Calcium Carbonate