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What causes red rot disintegration in vegetable-tanned leathers?

April 26, 2017causes disintegration leathers red Rot vegetable-tanned

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What causes red rot disintegration in vegetable-tanned leathers?

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Red rot results from sulfur dioxide in air pollution combining with tanning agents in certain types of leathers. This creates sulfuric acid in the leather, which in turn lowers the pH level and causes the leather to disintegrate. This often leads to the need for conservation of many books.