livre de ácido
1. not containing acid or acidic substances; treated to remove or prevent acid formation
Acid-free paper is essential for preserving important documents.
Papel livre de ácido é essencial para preservar documentos importantes.
2. specifically referring to materials designed to have a neutral pH level to prevent deterioration
Museums use acid-free boxes to store historical artifacts.
Museus usam caixas livres de ácido para armazenar artefatos históricos.
The term 'acid-free' is particularly important in both Brazilian and American conservation practices. In the US, museums and libraries extensively use acid-free materials for preservation. In Brazil, archival institutions increasingly adopt these standards. The term is technical and specialized, commonly used in conservation, museum work, publishing, and document preservation industries.
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