How Does Fluorosilicic Acid Leach Lead?

Silicic Acid – How Does Fluorosilicic Acid Leach Lead?

Why Does Fluorosilicic Acid Leach Lead So Much More Than Sodium Fluoride?

By Richard Sauerheber, Ph.D. Working with James Robert Deal J.D.

December 31, 2012


Coplan, Masters, Maas, and Sawan showed that that there is much more lead in tap water fluoridated with fluorosilicic acid than with sodium fluoride. However, they did not explain the mechanism by which fluorosilicic acid dissolves lead. … Orthosilicic acid is classed as a weak acid and is often dismissed as relatively harmless. Unfortunately for our health, it is able to dissolve – slowly but surely – lead salts out of lead based pipes and fittings, especially brass. Read latest version online at
Office Document · 105.5 KB · Available from James Robert Deal

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