September
6
Make Sodium Acetate “Hot Ice” with vinegar and baking soda (Pt2)
An improved method to make “Hot Ice” sodium acetate from vinegar and baking soda.
Boiling down the sodium acetate solution to exactly the right level is key to making sodium acetate work. Since most of you don’t have precise glassware like I do, you can follow this new method of boiling to get the concentration just right.
Simply make a raw sodium acetate solution like in our previous video at this link: http://www.youtube.com/watch?v=jpEZWdPIg9o
But instead of boiling down 90%, just watch the surface of the boiling liquid.
As you pass the key concentration for making hot ice, a crust of sodium acetate will start to form on the surface. As soon as you see this crust take it off heating. While it is still hot, stir the mixture and add a small amount of water, usually just a spoonful or so, to redissolve the crust.
It should still smell like vinegar, if it does not, there was not enough vinegar in the original mixture. So you’ll need to add another quarter-cup to half-cup of vinegar and boil it back down while looking for the crust. Once again stir it and add water.
Keep repeating the vinegar addition and boiling until the boiled liquid has a faint smell of vinegar.
Once you have the clear, hot, vinegar smelling liquid, place a covering it and then cool it in the fridge until it becomes cold to the touch.
Now you’re at exactly the right concentration to do hot ice.
To initiate the crystallization or “freezing” process, just drop in a solid piece of sodium acetate. You can get this by scraping off some of the crust earlier and then saving it separately.
Touching is not a reliable way to initiate crystallization, sometimes it works, sometimes it does not.
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Special Notes:
If you have bad sodium acetate from previous experiments, you can “fix” it by heating it and adding water until it completely dissolves. Then follow the boiling instructions in this video (including the vinegar addition if needed) to fix bad sodium acetate.
But if you have dirty sodium acetate then it won’t be fixable by this method.
I don’t think i’m emphasizing how important the following two points are: IT MUST SMELL LIKE VINEGAR AND BE TOTALLY CRUST-FREE before you can put it into the fridge. Otherwise, it WILL freeze automatically or turn to a mush.
If you want to know the temperature of hot ice as it freezes, click here: http://www.youtube.com/watch?v=CAwxhAP9mnc
If you want to reuse/remelt your sodium acetate after it has solidified, put it into the microwave and heat it until it *just* starts to boil. Then take it out and stir it until it completely dissolves. If it does not completely dissolve even when its really hot then add in water until it dissolves. Once it’s completely dissolved cover it and put it in the fridge.
FAQ: The yellow thing in the bottom when I’m adding the baking soda and boiling is a magnetic stir bar that stirs the ingredients.
Duration : 0:2:28
September 6th, 2009 at 10:18 pm
Alright, it’s …
Alright, it’s pretty obvious people still aren’t reading the video description before asking their questions.
A lot of other questions are also answered in the comments but people still ask them without checking first.
Comments have been disabled. If you have a question read the video description or the prior comments. Chances are it’s already been answered.
September 6th, 2009 at 10:18 pm
clearly you did not …
clearly you did not read the video description
September 6th, 2009 at 10:18 pm
‘just drop in a …
‘just drop in a small crystal of sodium acetate…’ WHERE DO U GET THE SMALL CRYSTAL FROM!!!!
September 6th, 2009 at 10:18 pm
only long enough …
only long enough until it feels cold to the touch.
September 6th, 2009 at 10:18 pm
how long do i need …
how long do i need to do the cooling part for
September 6th, 2009 at 10:18 pm
nope
nope
September 6th, 2009 at 10:18 pm
can this burn you …
can this burn you if it gets on ur skin
September 6th, 2009 at 10:18 pm
i remember buying a …
i remember buying a little bag of this when i went snowboarding (to keep your hands/feet warm)… it has like a little coin inside that when you blend it, it clicks and starts the reaction….
thanks for the instructional video, im gonna do it right now!!! ^^
September 6th, 2009 at 10:18 pm
answer in prior …
answer in prior comments.
September 6th, 2009 at 10:18 pm
does it work if you …
does it work if you stick your finger inside the water?
September 6th, 2009 at 10:18 pm
just divide the …
just divide the quantities by the ratio you want.
September 6th, 2009 at 10:18 pm
can you give me …
can you give me ratios that are smaller the 1Liter and 4-5 tablespoons because i want to try it buti dont have 1liter of vinegar
September 6th, 2009 at 10:18 pm
Already answered
Already answered
September 6th, 2009 at 10:18 pm
i asked you if i …
i asked you if i used pure ethanoic acid,how much baking soda do i need??
and you ans me
60 grams of pure acid
84 grams of sodium bicarbonate
40 mL of water
still need to boil
and i want to ask you how much water do i need to remove??and i want to do this experiment in the school laboratory,but i only can do it one time,can you give me some reminder to make it easy to sucess? thank you very much~
September 6th, 2009 at 10:18 pm
very ilttle, but …
very ilttle, but folllow the procedure in video
September 6th, 2009 at 10:18 pm
how much water do i …
how much water do i need to remove?
September 6th, 2009 at 10:18 pm
salt of sodium and …
salt of sodium and acetic acid. similar to sodium chloride but instead of chlorine it has acetate.
more information can be found online, it’s actually pretty common.
September 6th, 2009 at 10:18 pm
good luck!
good luck!
September 6th, 2009 at 10:18 pm
your welcome, I’m …
your welcome, I’m glad you like them!
September 6th, 2009 at 10:18 pm
gawd i feel stupid …
gawd i feel stupid asking cause im a newbie but what is sodium acetate
September 6th, 2009 at 10:18 pm
thanks man i needed …
thanks man i needed to come up with an expriment for science class and i think this will work
September 6th, 2009 at 10:18 pm
do not filter it …
do not filter it out unless the whole thing smells like vinegar, you just filtered out valueable material.
anyway pour in a cup of vinegar and reboil following the method in this video.
September 6th, 2009 at 10:18 pm
great videos… if …
great videos… if only i had come across these videos before!
thanks for sharing your experiments!!
September 6th, 2009 at 10:18 pm
i over boiled it i …
i over boiled it i didnt see this video i only saw the first one hahaha is there anyway to redisolve it or something? i filtered out the big chunky dough smelling bits.
September 6th, 2009 at 10:18 pm
60 grams of pure …
60 grams of pure acid
84 grams of sodium bicarbonate
40 mL of water
still need to boil