Wednesday, May 30, 2018

organic chemistry - Effect of reduction potential on particle size of chemically precipitated silver particles



Is there no mathematical relationship between redox potential and particle size saying that an X potential should yield a Y particle size? Right now its general that large redox potential results in smaller particles, but I want to know if, for example, for silver particles I use AgNOX3 with glucose reducing agent and say the redox potential is 0.33 V, what the ballpark for the particle size should be based on that potential (assuming pH does not change)?




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periodic trends - Comparing radii in lithium, beryllium, magnesium, aluminium and sodium ions

Apparently the of last four, MgX2+ is closest in radius to LiX+. Is this true, and if so, why would a whole larger shell ($\ce{...