GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW) | ||||||
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10:30 Jul 1, 2011 |
Romanian to English translations [PRO] Science - Archaeology / arheologie/restaurare material arheologic | |||||||
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| Selected response from: Peter Shortall United Kingdom | ||||||
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Summary of answers provided | ||||
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4 +3 | tannic acid application/treatment |
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tannic acid application/treatment Explanation: A nu se confunda cu "tanning", o parte din procesul de fabricare a pielii. Conform surselor de mai jos, acidul tanic se foloseşte pentru protejarea împotriva coroziunii a obiectelor din fier. tannic acid A pale brown powder which, in solution, is sometimes used in conservation of iron to form a protective black surface film. iron tannate A dark-coloured layer on the surface of iron objects produced deliberately as part of a conservation **treatment with tannic acid** to provide a measure of protection against corrosion. http://www.yorkarchaeology.co.uk/artefacts/glossary.htm **TANNIC ACID APPLICATION** - METHODOLOGY (...) Tannic acid is applied to the exterior of an artifact for two reasons. First, although it is an acid, it is a corrosion inhibitor... The second reason to use tannic acid is that it restores the artifact to a more historically correct black color. (...) Protectant application (...) ...This coating should be applied immediately after the **tannic acid application** or dehydration if no acid was applied. http://books.google.co.uk/books?id=STwkAmXvJ2sC&pg=PA95&lpg=... (acest link include şi informaţii despre peliculizare, "Protectant Application") "An iron artifact after tannic acid application" http://historicjamestowne.org/the_dig/dig_2010_11_17.php |
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