|MadSci Network: Chemistry|
Loaiza Ortiz, Before I say too much let me make it clear that I am just making an educated guess, so take this answer for what it is worth. It sounds as if the salt is drawing the water out of the psa. There could only be two ways this could happen. One, is that the salt is chemically attaching to the psa molicule and then in some way changing its configuration, and thus releasing the water. This does not sound very likley to me. So, two... the salt is changing the system physically. By adding salt to the system we might be creating an osmotic gradient with enough osmotic preasure that the water is literally being sucked out of the psa molecule. This at least sounds possible. If this hypothesis is true other compounds that create osmotic gradients shoud also work, such as suger or different types of salt. I would expect that alcohol and viniger would not work if my hypothesis is correct. So try it and let me know your results. Good luck. Steven Korenstein Environmental Health Specialist
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