Guest guest Posted June 20, 2009 Report Share Posted June 20, 2009 Hi Francine. I do not know anything about baking pans. But, I have done a lot of post-grad work in chemistry with silicon in water. Silicon forms a " silicate " state in water when it is successfully dissolved. Silicates are small molecules where, in general, one Si atom is attached to 4 Oxygen atoms. In pH-regulated water, that means a Si atom with 4 OH- ions or water (H2O) molecules attached. Now, depending upon the pH, those H atoms on the OH or water groups may come on or off. Also, depending on the pH and the *concentration of the dissolved Silicon*, the SiO4 groups can condense together to form polymers. Now, also in water, Aluminium forms aqueous complexes with either 4 or 6 Oxygen atoms (ie. H2O or OH- rgoups). These are called Aluminates. When they are together, the silicates and aluminates join together, to quite a significant extent, to cerate complex structures called aluminosilicates. There is a whole world of literature on aluminosilicates. There are some very strong proposals about aluminosilicate structrues being responsible for Alzheimer's. I don't have an opinion on that. Having said all of this, solid Silicon and solid Aluminium do not dissolve readily in water unless the pH is raised or lowered very significantly and the temperature is pushed right up. Silicon is a non-metal, Aluminium is a metal. Best Regards http://www.asdtracker.com/ Quote Link to comment Share on other sites More sharing options...
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