Sodium Polyacrylate
chemical
formula: CH2-CH(CO2Na)
( granular )
Sodium
Polyacrylate is an acrylate polymer which can absorb between 200 and 300
times its own weight of water. It is one of the superabsorbent polymer
gels, known as a polyelectrolyte.
This long-chain polymer is absolutely amazing to see absorb water and expand
to 40 times its original volume! A great
demo is to put 10 grams in a large beaker and quickly pour in 200 ml of
water.
In about 2 seconds, the Sodium Polyacrylate will erupt into a
gigantic pile of what looks like artificial snow. It will feel cool to the
touch (due to evaporation) but will remain completely dry. Best of all,
just allow the material to dry out, and it will return to its original
volume. It can be reused indefinitely.
Other than the erupting snow demonstration, there are an infinite amount
of possible uses for this unique material. Completely
safe & non-toxic.
MSDS
( Material Safety Data Sheet )
English