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Extraction and stabilization of natural rubber latex from Taraxacum kok-saghyz and from Hevea brasiliensis using ethanolamine as replacement for ammonia and potassium hydroxide

Krickl, Sebastian ; Touraud, Didier ; Kunz, Werner


For pH adjustment and long-term preservation of natural rubber (NW) latex, the usage of ammonia or KOH is still state of the art. Unfortunately, ammonia has a bad odor, it is volatile and toxic and thus does not provide safe and comfortable handling during the processing of latex. KOH preserved latices on the other hand have a significant tendency to form potassium carbonate when getting in ...


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