Whether it is used as flocculant, coagulant aid, thickener or resistance reducer, polyacrylamide must be prepared into solution before being used. However, the storage time of polyacrylamide solution is limited, so how long is the specific shelf life of PAM solution?

When the solid polyacrylamide is not dissolved, it can be stored for more than two years in a dry environment at room temperature. According to different kinds of liquid polyacrylamide, the storage time is also different. In general, the storage time of cationic polyacrylamide in 0.1% solution is only one day, while that of anionic polyacrylamide and nonionic polyacrylamide in 0.1% solution is one week. Once the time limit is exceeded, the prepared liquid polyacrylamide is easy to fail and agglomerate. In addition, the stability of polyacrylamide solution is related to its concentration. In other words: the higher the concentration of the prepared polyacrylamide solution, the longer the storage time. For example, when preparing a solution with a concentration of 3% or 5%, the shelf life is longer than that of a solution with a concentration of 1%.

Based on the short storage life of polyacrylamide solution as a whole, Gongyi filter material suggests that you should use polyacrylamide on site, and the use effect of on-site configuration is better, and you can not configure too much solution at one time, otherwise it will lead to a waste of cost.

​