Difference between revisions of "Acid-free paper"
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<!--In principle, papers which contain no free acid and have a pH value of 7.0 or greater. In practice, papermakers consider a paper having a pH value of 6.0 or greater to be acid free. Such papers may be produced from cotton fibers, rags, esparto, jute, chemical wood pulps, or virtually any other fiber, with special precautions being taken during manufacture to eliminate any active acid that might be present in the paper pulp. However free of acid the paper may be immediately after manufacture, the presence of residual chlorine from bleaching operations, aluminum sulfate (alum) from sizing, or sulfur dioxide in the atmosphere, may lead to the formation of hydrochloric or sulfuric acid unless the paper has been buffered with a substance capable of neutralizing acids. See also: ALKALINE RESERVE .--> | <!--In principle, papers which contain no free acid and have a pH value of 7.0 or greater. In practice, papermakers consider a paper having a pH value of 6.0 or greater to be acid free. Such papers may be produced from cotton fibers, rags, esparto, jute, chemical wood pulps, or virtually any other fiber, with special precautions being taken during manufacture to eliminate any active acid that might be present in the paper pulp. However free of acid the paper may be immediately after manufacture, the presence of residual chlorine from bleaching operations, aluminum sulfate (alum) from sizing, or sulfur dioxide in the atmosphere, may lead to the formation of hydrochloric or sulfuric acid unless the paper has been buffered with a substance capable of neutralizing acids. See also: ALKALINE RESERVE .--> | ||
Revision as of 12:30, 19 August 2014
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Contents
English
noun
Synonyms
Related terms
alkaline buffer alkaline reserve
Translations for "acid-free paper"
- English: acid-free paper
- Danish: (translation needed)
- Dutch: (translation needed)
- French: papier non acide
- German: (translation needed)
- Italian: (translation needed)
- Latin: (translation needed)
- Spanish: papel libre de ácido
- Swedish: (translation needed)
