Rockin' in the free world since 2005.

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Rating: 4.6
Category: Science
Date: 06/05/07 02:17 AM

126 Responses to Instant Hot Ice

  1. Profile photo of kendrickwall
    kendrickwall Male 18-29
    129 posts
    June 4, 2007 at 8:45 pm
    Link: Instant Hot Ice - Remember that instant ice everybody argued about a couple of weeks ago? Here`s how to do it.
  2. Profile photo of fabricant
    fabricant Male 18-29
    503 posts
    June 4, 2007 at 8:59 pm
    That`s just unreal.
    Isnt science amazing?
  3. Profile photo of yaoninja
    yaoninja Male 13-17
    90 posts
    June 5, 2007 at 2:22 am
    faved, thats awesome
  4. Profile photo of atziluth
    atziluth Male 13-17
    59 posts
    June 5, 2007 at 2:23 am
    eee third posters
    FTW
  5. Profile photo of Galol
    Galol Male 13-17
    80 posts
    June 5, 2007 at 2:23 am
    And store it in the Fridge right by the low fat cow milk
  6. Profile photo of PunkGirl_123
    PunkGirl_123 Female 13-17
    168 posts
    June 5, 2007 at 2:24 am
    amazing it is indeed. Now I can throw it at people!
  7. Profile photo of cmanatlan
    cmanatlan Male 13-17
    604 posts
    June 5, 2007 at 2:26 am
    Imagine when he poked it if he kept his finger in there.
  8. Profile photo of Punex
    Punex Male 13-17
    52 posts
    June 5, 2007 at 2:26 am
    I`ve done this sooo many times.
    It never bores me.
  9. Profile photo of Tyrizzle
    Tyrizzle Male 18-29
    908 posts
    June 5, 2007 at 2:28 am
    Now that is interesting...so ...would it be salty?
  10. Profile photo of wings1313
    wings1313 Female 18-29
    314 posts
    June 5, 2007 at 2:30 am
    that was pretty awesome... i think so far this is my fav link..... i cant wait to try it tmorrow.....
  11. Profile photo of lestat221
    lestat221 Male 18-29
    213 posts
    June 5, 2007 at 2:47 am
    cool stuff :)
  12. Profile photo of Baalthazaq
    Baalthazaq Male 18-29
    4548 posts
    June 5, 2007 at 2:58 am
    That`s pretty cool. :)
  13. Profile photo of bjbj1991
    bjbj1991 Male 13-17
    129 posts
    June 5, 2007 at 3:02 am
    cmanatlan

    The product is not completly solid like ice. You can compress it and it has a consistency simiular to frost or snow that has been compacted.

  14. Profile photo of Aerfy
    Aerfy Male 18-29
    232 posts
    June 5, 2007 at 3:33 am
    Brilliant. Faved.
  15. Profile photo of Suicism
    Suicism Male 18-29
    3625 posts
    June 5, 2007 at 3:37 am
    Anyone else reminded of The Simpsons by that last shot, with Marge posed as the monolithic Matriarch?
  16. Profile photo of Pabasa
    Pabasa Male 18-29
    4014 posts
    June 5, 2007 at 3:51 am
    awesomeness. But it`s hot ice, a bit weird to the unprepared (like me).
  17. Profile photo of n0n4m3
    n0n4m3 Male 18-29
    131 posts
    June 5, 2007 at 3:51 am
    Anyone else wonder why it didn`t freeze when he put it in the tray?
  18. Profile photo of vintagepizza
    vintagepizza Female 13-17
    447 posts
    June 5, 2007 at 4:11 am
    I think it`s very cool. But why the first time it only only froze when it was touched but then is froze as soon as it came out of the glass? It`s cool though.
  19. Profile photo of bambii311
    bambii311 Female 13-17
    333 posts
    June 5, 2007 at 4:16 am
    That was insanely cool. Did anyone else really like the music?
  20. Profile photo of Shanir
    Shanir Male 30-39
    1074 posts
    June 5, 2007 at 4:20 am
    Think it reacts with heat maybe the metal dish was heated beforehand
  21. Profile photo of speedsta
    speedsta Male 18-29
    609 posts
    June 5, 2007 at 4:21 am
    is it poisonous?
  22. Profile photo of 20logan06
    20logan06 Male 18-29
    62 posts
    June 5, 2007 at 4:46 am
    is that the stuff u can in hand warmers with da metal thing in it?
  23. Profile photo of Shanir
    Shanir Male 30-39
    1074 posts
    June 5, 2007 at 4:52 am
    Yes well it actually said it on the Video!
  24. Profile photo of matrixie
    matrixie Female 18-29
    718 posts
    June 5, 2007 at 5:38 am
    that looks amazing! especially when he poked it and it just spread out, like he has the cold(en) touch... hehe
  25. Profile photo of DeadlyLegion
    DeadlyLegion Male 18-29
    452 posts
    June 5, 2007 at 6:26 am
    Wow omg I am so gonna try this at home :D
  26. Profile photo of Gh4z
    Gh4z Male 18-29
    234 posts
    June 5, 2007 at 6:36 am
    Haha looks awesome.
  27. Profile photo of notapervert
    notapervert Male 13-17
    2568 posts
    June 5, 2007 at 6:46 am
    Congratulations to balyash! first to get the answer on the other thread. Shame on all you who said it was supercooled, asking people to `go back to school` :[
  28. Profile photo of kungfu_sage
    kungfu_sage Male 18-29
    102 posts
    June 5, 2007 at 6:54 am
    the reason it didn`t solidify when it was poured into the pan is because for it to "freeze" it has to have something to freeze onto. the glass pan was clean and smooth so there was nothing for the crystals to form around. but when you touch it the crystals form on your finger and then the crystals form on other crystals and so on till it is all solid. It`s the same thing with the bubbles in a pop bottle when you drop in the life saver mints.
  29. Profile photo of Shanir
    Shanir Male 30-39
    1074 posts
    June 5, 2007 at 6:56 am
    ! you know i used so much of this stuff i added loads of of thev stuff to 100ML of water and the water ended up at 250MLs lol
  30. Profile photo of notapervert
    notapervert Male 13-17
    2568 posts
    June 5, 2007 at 7:01 am
    Hey, how long do we have to cool it? do we just cool it or put it in the freezer?
  31. Profile photo of notapervert
    notapervert Male 13-17
    2568 posts
    June 5, 2007 at 7:20 am
    we can use sugar like some guy said instead of this sodium acetate thing right?
  32. Profile photo of BABY_BEAR
    BABY_BEAR Female 18-29
    1396 posts
    June 5, 2007 at 7:26 am
    I want to play =( our science department was so crap at scool...biggest thrill i ever got there was melting my ruler with a bunsen burner. Pfft.
  33. Profile photo of littlezazz
    littlezazz Male 13-17
    95 posts
    June 5, 2007 at 7:26 am
    wow, finally a video which people arent complaining about
  34. Profile photo of Breena716
    Breena716 Female 18-29
    89 posts
    June 5, 2007 at 7:54 am
    Awesome! I love this
  35. Profile photo of iggoramma27
    iggoramma27 Female 13-17
    59 posts
    June 5, 2007 at 8:10 am
    I wonder if I can get this stuff from my school! I school ask my old middle school teacher...he`d give it to me. And if they didn`t have it, he`s probably order it just so he could show his class.
  36. Profile photo of LazyMe484
    LazyMe484 Male 18-29
    10443 posts
    June 5, 2007 at 8:30 am
    heh thats cool
  37. Profile photo of balyash
    balyash Male 30-39
    63 posts
    June 5, 2007 at 8:45 am
    Thanks for the props, notapervert. I was a chem teacher for 5 years. You really can`t use sugar, the solubility (how much dissolves) is too low. When water is heated, the solubility of sodium acetate skyrockets. When cooled, the solution becomes "supersaturated". Kungfu sage is correct. That starting crystal is called the "nucleation site". Look up nucleation.
  38. Profile photo of cybercow
    cybercow Male 30-39
    106 posts
    June 5, 2007 at 8:49 am
    According to Wikipedia, you can make your own sodium acetate using baking soda and vinegar.

    84 grams of sodium bicarbonate react with 750 g of 8% vinegar to make 82 g sodium acetate in water. By subsequently boiling off most of the water, one can refine either a concentrated solution of sodium acetate or actual crystals.

  39. Profile photo of yowz
    yowz Female 18-29
    306 posts
    June 5, 2007 at 9:11 am
    i kept reading it instant hot dog. o.O i feel like a butt.
    but that was really awesome.
  40. Profile photo of McCormy
    McCormy Male 13-17
    60 posts
    June 5, 2007 at 9:14 am
    Whoahhh thats so cool!

    I can`t wait to try it =]

  41. Profile photo of Ivo87
    Ivo87 Male 18-29
    41 posts
    June 5, 2007 at 9:42 am
    made me think of the simpsons
  42. Profile photo of SilentxEm
    SilentxEm Female 60-69
    670 posts
    June 5, 2007 at 10:31 am
    "I was a chem teacher for 5 years." Mm, chemistry... one of my favorite subjects.
    Anyway, this is pretty cool. I`d do it but I lack sodium acetate right now, and I`m too lazy to make any. :] That, and I don`t think I have any clean pots.
  43. Profile photo of larajunky
    larajunky Female 40-49
    1832 posts
    June 5, 2007 at 10:36 am
    Near the end I thought he was going to make some kind of sex toy to make it funny or something. That was actually really cool. Never seen that before.
  44. Profile photo of HalfPintRoo
    HalfPintRoo Female 18-29
    2764 posts
    June 5, 2007 at 10:37 am
    ok, is there printable directions somewhere?
  45. Profile photo of ewan999
    ewan999 Male 13-17
    25 posts
    June 5, 2007 at 10:50 am
    i dont know were 2 get it from is it free? can ne1 send a link wiv the website were u get it from???
  46. Profile photo of rraaee
    rraaee Female 18-29
    85 posts
    June 5, 2007 at 10:55 am
    =] I want to tryyyyy
  47. Profile photo of flyingpixiex
    flyingpixiex Female 18-29
    152 posts
    June 5, 2007 at 11:18 am
    i love science sometimes. =)
  48. Profile photo of metter
    metter Male 13-17
    1016 posts
    June 5, 2007 at 11:19 am
    HOLY CRAP DIDDLES/.......imtrying this when I get all the stuff i need
  49. Profile photo of currybandit
    currybandit Male 18-29
    208 posts
    June 5, 2007 at 11:21 am
    thats faved mother fu(ker
  50. Profile photo of Chibi_Ichigo
    Chibi_Ichigo Female 18-29
    986 posts
    June 5, 2007 at 11:25 am
    O__O New super villian weapon on its way!! :D
  51. Profile photo of phobophobic
    phobophobic Female 13-17
    45 posts
    June 5, 2007 at 11:31 am
    awesome. I`m definitely going to try that.
  52. Profile photo of LaChica
    LaChica Female 18-29
    1596 posts
    June 5, 2007 at 11:36 am
    Hmmm where to get Sodium Acetate...
    *makes a plan to break into hospital research place*
  53. Profile photo of carmalita565
    carmalita565 Female 18-29
    56 posts
    June 5, 2007 at 11:42 am
    i wish i did that kind of stuff in chemistry class!
  54. Profile photo of omta
    omta Female 13-17
    363 posts
    June 5, 2007 at 11:59 am
    That is amazing, we did that in science class.
  55. Profile photo of z-a
    z-a Male 18-29
    84 posts
    June 5, 2007 at 12:06 pm
    that`s cool. it`s just like some renewable hand warmers I have. After you`ve done the experiment, you should be able to put it back into hot water and repeat the whole process. I don`t know if somebody already said this, but I believe that happens b/c by letting the mixture cool off, you make it unstable(which is why one little touch will start that whole chain reaction). There is more dissolvent in the mixture than it can hold at a cool temp.
  56. Profile photo of Andy1821
    Andy1821 Male 18-29
    65 posts
    June 5, 2007 at 12:15 pm
    hehe, anyone remember people writing in caps about how it was "supercooled"? :P
  57. Profile photo of Gmanji
    Gmanji Male 18-29
    64 posts
    June 5, 2007 at 1:35 pm
    I wonder if this is how they made some of the "iceman" effects in movies like X-men...? I wonder if you could just throw it at something and freeze it... I think Chibi_Ichigo is right. I want to be a super villian!
  58. Profile photo of Shoyz
    Shoyz Male 13-17
    1228 posts
    June 5, 2007 at 1:49 pm
    I originally thought it was just chemicals in the first place, there was arguing?
  59. Profile photo of jdf2k7
    jdf2k7 Male 13-17
    325 posts
    June 5, 2007 at 2:10 pm
    pretty good

    would it freeze if you poured it

  60. Profile photo of ACSlater2
    ACSlater2 Male 18-29
    10 posts
    June 5, 2007 at 2:27 pm
    Anyone know what the music was in the video?
  61. Profile photo of madmax11
    madmax11 Male 18-29
    733 posts
    June 5, 2007 at 2:32 pm
    awsome
  62. Profile photo of Rauron
    Rauron Male 13-17
    563 posts
    June 5, 2007 at 2:40 pm
    very cool, how can I get some sodium acetate ._.?
  63. Profile photo of moojuiceman
    moojuiceman Male 18-29
    924 posts
    June 5, 2007 at 2:57 pm
    so can you actually put this stuff in water and drink it or is it poisonous or something, also would it just heat up the water like a kettle only less hot
  64. Profile photo of balyash
    balyash Male 30-39
    63 posts
    June 5, 2007 at 2:58 pm
    try http://boreal.com/product.asp_Q_pn_E_IG0... or any science supply catalog like Flinn Scientific.
  65. Profile photo of RakeSlayer
    RakeSlayer Female 13-17
    87 posts
    June 5, 2007 at 3:50 pm
    One question: Would it make you sick if you drank it or would it freeze in your mouth?

    Either way, this is awesome! I wanna try this and see how many people think I`m a witch...:-)

  66. Profile photo of spongamabob
    spongamabob Female 18-29
    2087 posts
    June 5, 2007 at 4:10 pm
    wow. that is crazy cool. i want to try it now. i wonder if you can eat it. lol.
  67. Profile photo of AFTERSHOCK
    AFTERSHOCK Male 18-29
    2783 posts
    June 5, 2007 at 4:17 pm
    THAT`S JUST WAY AWESOME!!! I`M GONNA MAKE A WHOLE SH`TLOAD OF IT AND POUR IT ON A SUPERSOAKER!!! I WONDER WHAT`S GONNA HAPPEN WHEN I SOAK MY LITTLE SIS...

    MUSIC`S BLISS BTW ANYBODY KNOW WHATITIS?

  68. Profile photo of saveliy
    saveliy Male 18-29
    56 posts
    June 5, 2007 at 4:32 pm
    He creates a supersaturated solution, which means that a single particle can start the acetate percipitation. Unfortunately, that isn`t ice =P

    Very cool, but simple chemistry.

  69. Profile photo of Phanthom_
    Phanthom_ Female 18-29
    64 posts
    June 5, 2007 at 4:42 pm
    Oh my god this is totally epic. 69 comments on the same thread on the internet without anyone arguing! :D

    This stuff is awesome, the sodium acetate-online-shops will be sold out for weeks after this video conquers the web, heheh :D

  70. Profile photo of ruffnerr
    ruffnerr Male 30-39
    74 posts
    June 5, 2007 at 4:48 pm
    Yeah, the music is great.
  71. Profile photo of Soranita1
    Soranita1 Female 70 & Over
    15 posts
    June 5, 2007 at 4:56 pm
    can someone please tell me now to MAKE sodium acetate using the vinegar and baking soda?
  72. Profile photo of 1-Up
    1-Up Male 13-17
    291 posts
    June 5, 2007 at 4:59 pm
    Is It Cold Or Hot
  73. Profile photo of dashrendar98
    dashrendar98 Male 13-17
    132 posts
    June 5, 2007 at 5:33 pm
    Omgwtfhax
  74. Profile photo of gatorade777
    gatorade777 Male 18-29
    1194 posts
    June 5, 2007 at 5:52 pm
    everyone that liked that is very nerdy and needs to be shot or deported to Asia
  75. Profile photo of crump199
    crump199 Male 18-29
    139 posts
    June 5, 2007 at 6:16 pm
    if chemistry was all stuff like this then it`d be awesome... but it`s not... and chemistry sucks
  76. Profile photo of pea_ooter
    pea_ooter Male 13-17
    986 posts
    June 5, 2007 at 6:28 pm
    wowzer thats one cool thing i got to try... throw this at people: they`re like Omg water! then it freezes! hehehe
  77. Profile photo of pea_ooter
    pea_ooter Male 13-17
    986 posts
    June 5, 2007 at 6:36 pm
    and then their face is frozen! mwahahaha
  78. Profile photo of pea_ooter
    pea_ooter Male 13-17
    986 posts
    June 5, 2007 at 6:43 pm
    AFTERSHOCK: "THAT`S JUST WAY AWESOME!!! I`M GONNA MAKE A WHOLE SH`TLOAD OF IT AND POUR IT ON A SUPERSOAKER!!! I WONDER WHAT`S GONNA HAPPEN WHEN I SOAK MY LITTLE SIS..."

    FTW buddy!

  79. Profile photo of AK-047
    AK-047 Male 13-17
    270 posts
    June 5, 2007 at 6:53 pm
    I have heat packs full of those, so warm when you activate it. Good for warming up during skiing.
  80. Profile photo of dts_15609
    dts_15609 Male 18-29
    31 posts
    June 5, 2007 at 7:11 pm
    That is so cool

    i am going to try now

  81. Profile photo of JAK-STEEL
    JAK-STEEL Male 13-17
    1364 posts
    June 5, 2007 at 7:50 pm
    neato
  82. Profile photo of nicole_xo
    nicole_xo Female 13-17
    2552 posts
    June 5, 2007 at 8:21 pm
    OOH! ;-() I want to try it.
  83. Profile photo of screwphysics
    screwphysics Male 13-17
    13 posts
    June 5, 2007 at 9:02 pm
    hahaha you could be iceman! from xmen thats how they froze the pond in the last stand moviei threw this at my friend and he said holy sh*t howd you do that and i said i was the iceman............ i love chem and screwphysics
  84. Profile photo of brittany777
    brittany777 Female 13-17
    17 posts
    June 5, 2007 at 9:31 pm
    ist sodium ..salt?
  85. Profile photo of runeguy37
    runeguy37 Male 13-17
    121 posts
    June 5, 2007 at 10:03 pm
    Sodium Chloride, NaCl, is salt.

    Sodium Acetate NaC2H3O2 is a component of the fizz made when you mix baking soda and vinegar together.

  86. Profile photo of runeguy37
    runeguy37 Male 13-17
    121 posts
    June 5, 2007 at 10:04 pm
    Thats not the only way of getting sodium acetate its just the first example I could think of.
  87. Profile photo of crazydaiz
    crazydaiz Female 18-29
    251 posts
    June 5, 2007 at 10:31 pm
    for a second, i was absolutely sure he was about to sculpt a penus.

    thank god for scientific maturity?

  88. Profile photo of mts2457
    mts2457 Female 18-29
    535 posts
    June 5, 2007 at 10:43 pm
    No, ENDOthermic would mean it gets warm. Dummies.
  89. Profile photo of dilldog123
    dilldog123 Male 18-29
    1858 posts
    June 5, 2007 at 11:10 pm
    wowzers!!!!
  90. Profile photo of Blakcat71388
    Blakcat71388 Female 18-29
    876 posts
    June 5, 2007 at 11:20 pm
    That was really cool. So much potential.....
  91. Profile photo of GrereX1
    GrereX1 Male 13-17
    921 posts
    June 5, 2007 at 11:20 pm
    Wow where can i buy this!
  92. Profile photo of ThePhoenix88
    ThePhoenix88 Male 18-29
    9 posts
    June 5, 2007 at 11:38 pm
    I made sodium acetate using vinegar and baking soda. I only had 5% concentrated vinger so I figured out the proportion so it would be like 8%. The baking soda was old cause it was use in the fridge. Anway I got the acetate made but it was a little on the brown side. I brought some water to about boiling temp (190 F) and added quite a bit of acetate. I put it in a pyrex mesauring cup and put it in the fridge for a good 40 minutes. The acetate just settled on the bottom and some was suspended in the water but it didn`t do anything. Can someone tell me how to do it right and if the impurties in the baking soda would have caused in to wrong?
  93. Profile photo of brittany777
    brittany777 Female 13-17
    17 posts
    June 5, 2007 at 11:39 pm
    how else can u make that kind of sodium?
  94. Profile photo of KimonoThief
    KimonoThief Male 18-29
    126 posts
    June 6, 2007 at 12:38 am
    "Shame on all you who said it was supercooled"

    It IS supercooled. The melting point of sodium acetate is 58 °C. Since room temperature is roughly 23 °C, it should be a solid, but it remains in its liquid form.

  95. Profile photo of B3XYS4b3LL
    B3XYS4b3LL Female 13-17
    14 posts
    June 6, 2007 at 8:08 am
    was it just me or did the sculpture @ the end look like a pee-nis?
  96. Profile photo of Yoeri
    Yoeri Male 18-29
    376 posts
    June 6, 2007 at 12:06 pm
    Can anyone please please please, tell me what the music is for this little vid. I`ve been trying to locate it but without any luck....

    PLEASE!

  97. Profile photo of WTFGirl
    WTFGirl Female 13-17
    157 posts
    June 6, 2007 at 12:37 pm
    ...so...what would happen it you threw it at someone`s face?
  98. Profile photo of klkl
    klkl Male 13-17
    1726 posts
    June 6, 2007 at 12:47 pm
    hmm...is it still eat the ice? idk if ud wanna i guess cause its warm...eww

    nice tho

  99. Profile photo of philippic
    philippic Male 18-29
    1704 posts
    June 6, 2007 at 1:20 pm
    quality!!!!!
  100. Profile photo of Qpax
    Qpax Male 18-29
    188 posts
    June 6, 2007 at 2:48 pm
    Ah, it`s a chemical reaction that makes the water give out heat. That would explain it quite nicely.
  101. Profile photo of krusty2514
    krusty2514 Male 70 & Over
    189 posts
    June 6, 2007 at 6:25 pm
    Phoneix you cant improvise by figuring out the proportion like you said you did. First you must have an 8%. Percent concentration does not have anything to do with proprtionality because for teh reaction to occur it should proably be 8 percent.If you are making your own acetate then you know that for the reaction to proceed forward and be exothermic, its got to be 8 percent

    They were wrong in the video. In exothermic reactions, heat LEAVES hence the exo part of exothermic.

    TO get to 8 percent here is an easy way if you have some kind of knolwedge of chemistry

    here is the math formula for it for easy computation

    (molarity1)(Volume1)=(molarity2)(volume2)

    so for M1 you would put 5 percent Volume 1 you put whatever volume you think is good for you. Molarity 2 you put 8 percent Volume 2 you put an X because you are solving for it.

    Use math to find out how much volume must evoporate to get an 8 percent solution. Ask if you need help.

  102. Profile photo of Pyro_Raver
    Pyro_Raver Male 18-29
    284 posts
    June 6, 2007 at 9:39 pm
    Coolness! I gotta try this myself in a bigger container
  103. Profile photo of imatwirp
    imatwirp Male 18-29
    74 posts
    June 6, 2007 at 10:10 pm
    what is this background song? i remember hearing it on a hunting channel before...
  104. Profile photo of williskewlas
    williskewlas Male 13-17
    22 posts
    June 6, 2007 at 11:23 pm
    my bio teacher showed me how to do this before
  105. Profile photo of ashwey
    ashwey Female 13-17
    943 posts
    June 7, 2007 at 2:26 pm
    yeah i have a have a handwarmer that works like that!
  106. Profile photo of blue_mess
    blue_mess Male 13-17
    315 posts
    June 8, 2007 at 12:51 pm
    OMD! WHERE CAN I BUY SOME CHEMICALS? :)

    I love it, faved right away!

  107. Profile photo of OneFreeMan
    OneFreeMan Male 18-29
    4 posts
    June 8, 2007 at 7:43 pm
    @krusty2514: "They were wrong in the video. In exothermic reactions, heat LEAVES hence the exo part of exothermic."

    Uhh, yes. Heat LEAVES the reaction, hence entering the surroundings. Thus, "it gets hot" (as in you will feel heat if you touch it or the container in which it is taking place).

    So how was the video wrong, exactly?

  108. Profile photo of OneFreeMan
    OneFreeMan Male 18-29
    4 posts
    June 8, 2007 at 7:57 pm
    @notapervert: "Shame on all you who said it was supercooled, asking people to `go back to school` :["

    ...

    @Andy1821: "hehe, anyone remember people writing in caps about how it was "supercooled"? :P"


    Umm, what are you two talking about? It IS supercooled. I mean, I hate to be negative, but try to understand what a word means before posting snarky comments about it, okay?

  109. Profile photo of Crowe
    Crowe Male 18-29
    204 posts
    June 9, 2007 at 7:43 am
    that`s awesome :) looks real fun. i dunno but people seem to have got confused over the whole exo/endo - thermic reactions part. exo - releases heat, endo - absorbs heat. for the solution to freeze it would have to get colder (ie. release heat) and therefore go through an exothermic reaction. where did the whole `supercooled` thing come from? they didn`t use anything that cool (pun intended) ;) Crowe
  110. Profile photo of OneFreeMan
    OneFreeMan Male 18-29
    4 posts
    June 11, 2007 at 1:33 am
    @Crowe: " where did the whole `supercooled` thing come from? they didn`t use anything that cool (pun intended)"

    Do you know what the term "supercooled" means? Do you understand that not all liquids freeze at temperatures you would consider "cold"? The reason this sodium acetate solution freezes so rapidly is because it`s ALREADY below it`s freezing point and simply needs to be agitated or have some foreign particle introduced to begin the chain reaction of ice crystal formation. That is what the term "supercooled" means. By definition. Why do you think it freezes when he touches it? Because his finger is really cold? No, because the freezing point of the solution has already been reached. We`re not talking about rocket science here, people. All you have to do is Google "supercooled" to understand. You know how to Google, right?

  111. Profile photo of Crowe
    Crowe Male 18-29
    204 posts
    June 11, 2007 at 3:00 pm
    i like science, yeah, nowt wrong wid bein a nerd. what`s the freezing point for the sodium acetate solution? 54 celius? i made the assumtion that introducing heat into the solution (when at 4 ish celcius from the fridge) triggered a -chemical- exothermic reaction expelling heat from the solution bringing it down below its freezing point. seemed the logcial answer as the heat given out by any part of the solution reacting would in turn trigger the reaction throughout the rest of the chilled solution (well, supercooled, as it seems). if agitation of the solution or introducing a foreign substance would trigger the reaction, i would have expected moving the solution or exposing it to air to have such an effect. though, by the same logic, i did wonder why exposing the solution to heat to when removing it from the fridge didn`t trigger the reaction. we didn`t use the term supercooled when i was in school/college, so don`t take the pi**, freeman, i ain`t thick. i asked where not what. Crowe
  112. Profile photo of Crowe
    Crowe Male 18-29
    204 posts
    June 11, 2007 at 3:59 pm
    54 celcius*
  113. Profile photo of OneFreeMan
    OneFreeMan Male 18-29
    4 posts
    June 11, 2007 at 6:25 pm
    A saturated sodium acetate solution freezes at around 60 degrees (140F). So basically unless you put the stuff in the oven, liquid sodium acetate is ALWAYS "supercooled" (i.e., below it`s freezing point while remaining liquid). It doesn`t have anything to do with refrigeration or "exposing it to heat." A liquid sodium acetate solution at room temperature is supercooled.

    Moving the solution gently or exposing it to air does not trigger the reaction because it does not introduce a nucleation point (a foreign particle large enough to attract/form ice crystals). This is how the demonstrator is able to pour the solution into the tray without triggering the reaction. If he poured much faster or if there were a large dust particle in the tray, the reaction would have occurred immediately on contact.

  114. Profile photo of Crowe
    Crowe Male 18-29
    204 posts
    June 12, 2007 at 2:20 am
    i`ve found myself somewhat gripped by understanding this process fully, anyone else who`d like that lil bit more detail i found some good info:
    http://home.howstuffworks.com/question29...
    i`ve not found anywhere the explaination as to how the chain reaction continues after it begins. it seems the crystalised sodium acetate solution particles act as nucleation points for further crystalisation. appologies if everyone else worked it out ages ago and i`m rambling on. Crowe
  115. Profile photo of shiggin
    shiggin Female 13-17
    1470 posts
    June 12, 2007 at 8:10 am
    God, i want to try that sooo badly.
  116. Profile photo of mrwnt
    mrwnt Male 18-29
    334 posts
    June 12, 2007 at 8:47 pm
    it happens because it is a supersaturated solution, and your finger becomes the seed
  117. Profile photo of Mbirdgurl
    Mbirdgurl Female 13-17
    920 posts
    June 16, 2007 at 5:47 pm
    Awesome...
  118. Profile photo of Kraken
    Kraken Female 18-29
    178 posts
    June 16, 2007 at 6:11 pm
    That is fricken awesome. I really need to try that out sometime.
  119. Profile photo of beca3523
    beca3523 Female 13-17
    29 posts
    November 5, 2007 at 10:32 pm
    is it acually HOT??
  120. Profile photo of arkansas_guy
    arkansas_guy Male 18-29
    46 posts
    December 31, 2007 at 7:43 pm
    someone take a video of u eating it..

    now thats pure entertainment.

  121. Profile photo of Hanninha
    Hanninha Female 18-29
    95 posts
    January 1, 2008 at 4:10 pm
    OMG thatsdratningamazing!!!
  122. Profile photo of YouDaftPunk
    YouDaftPunk Male 13-17
    44 posts
    January 1, 2008 at 11:57 pm
    i...gotta....try that! <3
  123. Profile photo of eeeriddler08
    eeeriddler08 Female 13-17
    376 posts
    April 13, 2008 at 11:55 am
    wowie! that was beat. he has the magic touch ;)
  124. Profile photo of Chasya
    Chasya Female 18-29
    60 posts
    January 6, 2009 at 1:25 am
    ok so is it actually hot?does it melt?or does it turn into like a clay/plaster kind of thing...guess ill have to try this one myself..
  125. Profile photo of msmpinheiro
    msmpinheiro Male 30-39
    1 post
    August 28, 2009 at 4:33 pm
    plz i need the name the music playing in background.
  126. Profile photo of MastaPlan23
    MastaPlan23 Male 13-17
    76 posts
    February 6, 2010 at 6:20 pm
    see i dnt understand y we cant do amazing fun poo like this in my science classes.

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