Make Silver Different Colors by Anodizing

How to Make Silver Different Colors by Electrochemical Anodizing. Without using paint you can give a silver surface various colors by anodizing it. WARNING: Anodizing solution is corrosive, so wear gloves at all times when working with it. It is also somewhat toxic, so keep it away from children and pets too. To make the solution, just mix two tablespoons of sodium hydroxide (lye) and one tablespoon of sulfur with half a cup of water (~100mL). Stir for about ten minutes until the solution turns orange. Then filter the solution to remove excess sulfur. You can get sulfur from online sources (including ebay) or from some drugstores. Sodium hydroxide is the primary component of some types of drain cleaners. But read the label carefuly, drain cleaners come in many types and alot of them don’t have sodium hydroxide. You can also buy sodium hydroxide online, it’s sold for making home biodiesel or homemade soap. We’ve had some people reporting their solution does not turn orange. Heating the solution sometimes helps. Some types of sulfur still don’t react, in this case, mix together sulfur and sodium hydroxide pellets directly and then add just enough water to moisten the mixture and stir it. The higher concentration should work better. As it reacts it should heat up. Every few minutes add a little more water until all the pellets of sodium hydroxide are dissolved. The mixture should be very hot. Continue stirring until it cools on its own. Then add enough water until the total …
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