On Fri, 02 Sep 2005 05:29:35 +0100, param wrote:

I have got a question that how do the heavy metals dissolve in the
water on molecular level like what kind of bonding occurs. what are the
ways (not chemically or chemical reaction) that we can separate these
metals from water.

Some metal ions form adducts with water, for example the cuprous ion is
colourless when anhydrous. If memory serves it hooks onto six water
molecules of water and becomes blue.
A great deal depends on the other dissolved substances in the water. Salt
water rots most metals, especially if dissimilar metals are in contact,
setting up an electrochemical cell. Even differential oxygen content can
achieve this. As you have ruled out chemical methods, you really need to
double-distil it.

John Schmitt

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