how sodium polyacrylat binds water

water + sodium polyacrylate. Sodium polyacrylate is able to absorb 200 to 300 times its own weight in liquids. This ability is due to the phenomenon of osmosis, which, roughly speaking, is an internal absorption with further storage of moisture according to the principle of a membrane. Orbis and diaper fillers are made from similar compounds. With diapers, the absorption volume is reduced because urine contains salts (urea, etc.) that reduce the ability to absorb moisture. The fact is that the salts themselves also have osmotic power. You can see this when drying fish: we add salt, which draws moisture out of the fish (or meat) and dries it.😄😉

source:
https://t.me/TirthaBTG/223128