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I understand that once a SAP absorbs a liquid it becomes a type of gel and that this gel can be liquefied by applying salt, are there other methods to liquefy this gel without using salt?

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change the pH to less than 3. absorbents do not like low pH. since absorbents are a polymer of sodium acrylate. lowering the pH covert sodium acrylate to the acid form (acrylic acid) the acid form is not a super absorbent.

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