|MadSci Network: Chemistry|
I am doing a science experiment for 3rd graders in my Elementary School teacher science course. I want to use "Water Loc" (which is used in some diaper products, magic tricks, and by the fire department to soak up spills) to make water gel up. I also want to turn the water back to a liquid by adding salt (I don't remember if I need to use iodized or noniodized salt). My question is whether or not you could help me understand the chemical bonding and state changes a little better. I did this in high school but I don't remember all the components that make it change into the gel and then back to the liquid with the salt. Is there anyway that you could answer this to my understanding with any ideas you have for what I should present to the third graders as far as an explanation. I have to give this experiment in about a week, so I would really appreciate if I could get an answer in that time. Thank you for your help.
Re: How does Sodiumpolycrylate or 'Water Loc' make water turn into a gel?
Try the links in the MadSci Library for more information on Chemistry.