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However , introduction of alginate ( 1 . 25 % ) as the coating polymer considerably diminished the dye leaching to only 5 . 80 +/- 0 . 06 % .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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