How to Make Hot Ice

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  • Topic: Sodium acetate, Nucleation, Crystal
  • Pages : 3 (966 words )
  • Download(s) : 156
  • Published : April 16, 2013
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HOT ICE
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How to make own Sodium Acetate 
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1. Add 6 tablespoons of baking soda to a pot. Do not use baking powder. 2. Add 2 liters of white vinegar to the baking soda until it stops fizzing. Do this bit by bit to avoid spills and stir often. When the fizzing stops, the reaction is complete, leaving you a diluted solution of sodium acetate. The solution should be clear. 3. Boil the solution until around 90% of the water has evaporated. (This may take some time.) Note that the solution will be ready when a crusty film begins to form on top. What you’re left with is a more concentrated solution of sodium acetate. (You may notice that your solution is slightly yellowish or brownish.) * As the solution boils down, sodium acetate crystals will be left sticking along the inside of the pot. Don’t mix them back into the solution; you’ll need them later, so use a spoon to gather and save them separately. * Don’t let the film on top of your solution become thick or developed; this indicates that another reaction is taking place and will ruin your hot ice effect.

4. Move the completed solution into a smaller (preferably glass) container and add 1 or 2 tablespoons of vinegar. The vinegar will help keep the solution in its aqueous state. 5. Stir solution. Make sure all solids are completely dissolved. 6. Cool it in an ice bath. If you don’t have an ice bath ready, you can also just put it in the fridge; note that it will take longer to cool this way. When the solution is done cooling, it becomes supercooled; that is, it has gone below its freezing temperature without actually freezing into a solid. You are now ready to make hot ice. 7. Add a bit of crystallized sodium acetate to your aqueous solution. Use the powder scrapings you removed from the pot while you were boiling down the...
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