EXPERIMENTAL PROCEDURE Manufacturing of copper-zinc composition: The yogurt used to prepare this composition was non-fat yogurt available in any grocery store and the brass container (Deepak) shown in figure 1, was purchased from a Goodwill Industries store. The Deepak shown in figure 1 is like any other such container commonly used in many Indian homes to worship Gods. It is made of 78% Cu, 21% Zn and 1% Al by weight. It is essential to use containers made from coarse and unpolished alloy to expedite chemical reaction. The final product for topical applications at minimum should contain 60 to 70% copper lactate, 20% to almost 30 % zinc hydroxide and 10 % inactive ingredients such as purified water and Aloe Vera. The research composition used in this test series was prepared by placing a small amount of fresh yogurt having a pH of 4.1-4.2 and containing live active cultures, including Acidophilus and bifidus into a brass container for 18-24 hours at room temperature. During this period lactic acid (C3H6Oa) in yogurt reacted with Cu and Zn by leaching and the yogurt near the contact surface became bluish-green, indicating that a chemical reaction has taken place producing copper lactate {[Cu (C3, H5 03)2. 2H2O] ), and zinc hydroxide ((Zn(OH)2 }. Test composition has somewhat unpleasant metallic taste. The manufacturing process of these compounds or mixtures is given only as an example. Many other upscale processes are possible to increase the production. Most of the base chemicals like cupric oxide, zinc hydroxide and zinc oxide are readily available from standard chemical catalogs.
Posted on: Wed, 05 Mar 2014 04:08:50 +0000
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