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1.what is the percentage of sodium acetate used in the...

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Question by Viral
Submitted on 9/3/2003
Related FAQ: Sci.chem FAQ - Part 1 of 7
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1.what is the percentage of sodium acetate used in the manufacture of Magic heat massage pads?
2.Which grade of sodium acetate ie: crystalline or anhydrous ) is used in the heat massage pads?
3.what is the concentration on sodium acetate trihydrate? so that it starts recrystallizing immediately as soon as you flex the disc?

Answer by Laren Corie
Submitted on 12/21/2003
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I believe that what you are looking for
is a super saturated solution of 5ml water
to 50g of sodium acetate trihydrate.

You will find that verified here:


" Put the 50 g of sodium acetate in a
beaker, and then add the 5 ml of water.
Heat gently, and stir until dissolved.
Use a small amount of water to rinse
down the inside of the beaker. Remove
from heat, and wrap in foil. Let cool slowly. "

The rinsing is to remove any crystals
which might trigger the phase change.

It is an interesting heat storage medium.


Answer by i did ur mom
Submitted on 12/8/2004
Rating: Not yet rated Rate this answer: Vote
lick my balls


Answer by band_geek
Submitted on 11/30/2005
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The experiment is really fun.  My science class did it today, and it is really cool if you  pour the supersaturated solution onto a piece of tinfoil after it is cooled.  Pour it onto a starter crystal of sodium acetate and watch it form towers as it crystalizes.  Ours worked beautifully, and we tried it again; the second time it crystalized half inside the flask, creating beautiful crystal patterns within the flask.


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