Friday, November 11, 2005

Better Living Through Basic Chemistry

During a legitimately novel-related web search, I came across a basic science project that can double as an easy way to polish silver. So, as we approach Thanksgiving and time to break out the good dishes, teach your kids about electrochemical reactions and knock the tarnish of the flatware at the same time. All you need is a glass dish big enough to hold the silverware, baking soda, a sheet of aluminum foil, and a pot of hot/boiling water (it will work with cooler water, but nowhere near as fast). Put the foil in the dish and set the silver on top of the foil. Mix about a half cup of baking soda per quart of hot water, and pour the water into the dish. Tarnish fizzles right off, even out of deep patterns. A word of warning. Silver is also an excellent conductor of heat, so you'll want to handle your newly-polished items with an oven mitt or other insulating material, as they'll be quite hot.

Basically, the baking soda solution and a small electric charge that runs between the foil and the silver piece transfer the tarnish to the foil. This has the added benefit of leaving more silver attached to your original piece. I just tried it on the silverplate candlesticks we got for our wedding, that haven't been out of the box in the five years we've been married. Shiny as new!

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