Chemical Forums
Specialty Chemistry Forums => Citizen Chemist => Topic started by: halfangstrom on April 28, 2013, 02:27:25 PM
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Hi I am looking for a liquid that is denser than water. It needs to be safe for kids and if possible colorless.
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Depends on how safe.
Brine?
CaCl2 in H2O?
Mollasses?
Neither will burn nor explode nor give off toxic fumes or something. But if they drank a cup things wont be too pretty.
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Brine or CaCl2 in H2O or Molasses would eventually dissolve in water leaving a solution rather than layers.
Even Glycerol (or Glycerin), Corn starch solutions , Glucose, Milk, corn syrup, honey, and Sugar solutions would eventually dissolve as well.
I guess you just have to select one that does not dissolve rapidly.
Layered liquids
http://scidaho.org/wikidemo/index.php?title=Layered_liquids
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Thanks for the replies but I think I am looking for something different. I just remember seeing a youtube video of some invisible substance in a top-open glass box. The man in the video put a 'boat' on the substance and it floated. Then the man filled the 'boat' with the substance and then it capsized.
Perhaps this substance was a gas?
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SF6 comes to mind.
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Yes that is it. Thank you!
Here it is in action:
http://www.youtube.com/watch?v=A4hUNOpyeFY