How to judge whether polyacrylamide is invalid? 

-Appearance changes:
Check the appearance of the polyacrylamide to see if there are signs of discoloration, caking, or deterioration. If these occur, it may mean that the material has failed.

-Solubility:
Take a small amount of polyacrylamide and add it to water to check its solubility. If it does not completely dissolve or there is precipitation after dissolution, it may have failed.

-Performance testing:
Perform experiments to test its functionality, such as its ability to treat water samples or improve soil. If the effect is significantly reduced, it may be because the material has failed.

-Shelf life:
Pay attention to its shelf life. Polyacrylamide usually performs best within the validity period and may fail after the expiration date.


How to preserve it better?

-Storage environment:
Temperature: The storage temperature is usually 15°C to 25°C.
Humidity: Keep it dry and avoid humid environment to prevent physical changes caused by moisture absorption.

-Container selection:
Use well-sealed containers such as sealed bags or containers to prevent air and moisture from entering and keep it dry.

-Avoid direct sunlight:
Avoid storing it in direct sunlight, as ultraviolet rays and high temperatures may cause its performance to deteriorate.

-Check the packaging:
Make sure the packaging is intact, any damaged packaging may cause the failure of polyacrylamide.

-Marking and recording:
Mark the production date and expiration date on the packaging, and check the storage conditions regularly to ensure it is in the best condition.

Polyacrylamide plays an irreplaceable role in modern industry and agriculture due to its efficient flocculation performance and superior soil improvement effect. Whether you are in a water treatment plant, agricultural field or papermaking industry, polyacrylamide will be your ideal choice.

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