Introduction: Sodium Polyacrylate

Here are some pictures of the amazing material sodium polyacrylate (SPA). In the pictures you will see what it does, and if you can't tell what happened, I added first 25, then 50 ml of water to about 3 ml of SPA. All the water was absorbed. The captions will give you a breif description of what you see in each slide. Enjoy.
Chemical Formula:
CH2-CH(CO2Na)

Pic 1: (from left to right) Powder scoop, bottle of SPA, Erlenmeyer flask
Pic 2: Adding SPA to the flask
Pic 3: SPA in the flask
Pic 4: Added 25 ml of water, absorbed and the SPA takes on the texture of fake snow
Pic 5: Some SPA in my hand, feels cool due to evaporation
Pic 6: Added another 25 ml of water to SPA, feels cold and slimy (think partially solidified Jello)

Comments

author
Pazzerz made it!(author)2008-06-30

Its a polymer. I used to make the stuff in two different absorption formulas for a company I used to work for. One would absorb 100x and the other would absorb 1000x its own weight in water. Uses? Keeping water in soil in dry arid regions, baby diapers, feminine napkins... you go from there.

author
SumanaC made it!(author)2015-07-24

I want it in ball shape and cube shape. Can you guide me how to make that kind of geometrical shape with the SPA

author
cgalbreath made it!(author)2011-05-26

In what form could you apply this to soil in a dry area? Granular? At what rate?

author
Pazzerz made it!(author)2011-05-27

Don't know the percentage that is used, but it isn't much. They slowly dry out, letting out moisture back into the soil in a much longer time frame than with soil alone. They can then be rehydrated either by nature or by artificial means.

author
SAYEDMAJID1 made it!(author)2010-07-28

SIR kenbo0422 can you tell me how can i made it at home with higher efficiency.

author
SumanaC made it!(author)2015-07-24

How to get the ball shape or dry beads out of it? suppose I have water and the SPA powder and then how to make the spherical ball or cube? please share your knowledge

author
flamethrower1010 made it!(author)2009-11-14

 what ounce bottle is that?

author
nuclearscience made it!(author)2008-08-28

I bought that stuff & the stuff that glows in the dark , mixed them to gather & made glowing snow ,which worked really well. then i decided to freeze it & threw it at the side of my house which made a glowing splater mark when it got dark which was really cool

author
fallenspirit123 made it!(author)2009-06-08

dude, I have got to try that!!!! *running downstairs to get bottle of SPA*

author
szechuan53 made it!(author)2008-09-02

wow, that sounds fun. do you mean Luminol or Phosphorescent powder?

author
nuclearscience made it!(author)2008-09-10

Phosphorescent powder, when I ordered them i also got magni view & 2 magnets just because magnets are cool.

author
szechuan53 made it!(author)2008-09-12

yes they are

author
LinuxH4x0r made it!(author)2008-06-28

Awesome stuff Do a full ible about it

author
szechuan53 made it!(author)2008-06-29

originally i was, but the guys at instructables said i should do a slideshow.
:v(

author
twenglish1 made it!(author)2008-08-13

thats probably because you had pictures but not alot of directions

author
szechuan53 made it!(author)2008-08-18

no, i had directions thank you very much. for example, i showed how you could use it to water your plants when you are on holiday.

author
explosivemaker made it!(author)2008-06-29

....product placement......

author
szechuan53 made it!(author)2008-06-29

i admit, united nuclear is my universal supplier. but i wasn't product-placement-ing. i'm too young for that stuff

author
explosivemaker made it!(author)2008-08-07

......i'm just messn with ya.....I always notice when a label or a name or something gets stuck in there.....

author
szechuan53 made it!(author)2008-08-07

i know what you mean, dude.

author
%3DSMART%3D made it!(author)2008-06-29

...ummm what does it do??

author
szechuan53 made it!(author)2008-06-29

absorbs water.

author
%3DSMART%3D made it!(author)2008-06-30

any cool experiments/tricks you can do with it

author
szechuan53 made it!(author)2008-06-30

absorb kerosene,add a lit match

author
%3DSMART%3D made it!(author)2008-06-30

cool !

author
szechuan53 made it!(author)2008-06-30

actually very hot

author
%3DSMART%3D made it!(author)2008-06-30

haha and painfull :P

author
gmoon made it!(author)2008-06-29

So -- is it a colloid, or something different? Not much info or instruction here...

author
szechuan53 made it!(author)2008-06-29

well, i dunno. i thought is was cool so i made a slideshow. gimme a break, i'm barely 14, dude

author
ItsTheHobbs made it!(author)2008-06-28

Cool!

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Bio: I enjoy physically self-destructive acts in the name of science (like testing the taste of hydroflouric acid). I do stupid stuff constantly, like breaking open ... More »
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