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2. Conservation and restoration of silver objects - Wikipedia

   en.wikipedia.org/wiki/Conservation_and...

   Silver is known in the chemistry world as a noble metal, which means it is resistant to corrosion, but not completely immune. Whether silver plating or pure silver, the composite of the metal will tarnish when exposed to air and sulfur. Tarnish is a chemical reaction on the surface of metal (copper, brass, silver, etc.) and causes a layer of ...

3. Polishing (metalworking) - Wikipedia

   en.wikipedia.org/wiki/Polishing_(metalworking)

   The removal of oxidization (tarnish) from metal objects is accomplished using a metal polish or tarnish remover; this is also called polishing. To prevent further unwanted oxidization, polished metal surfaces may be coated with wax, oil, or lacquer. This is of particular concern for copper alloy products such as brass and bronze. [2]

4. Tarnish - Wikipedia

   en.wikipedia.org/wiki/Tarnish

   Tarnish does not always result from the sole effects of oxygen in the air. For example, silver needs hydrogen sulfide to tarnish, although it may tarnish with oxygen over time. It often appears as a dull, gray or black film or coating over metal. Tarnish is a surface phenomenon that is self-limiting, unlike rust. Only the top few layers of the ...

5. Sterling silver - Wikipedia

   en.wikipedia.org/wiki/Sterling_silver

   The first legal definition of sterling silver appeared in 1275, when a statute of Edward I specified that 12 troy ounces of silver for coinage should contain 11 ounces 2 + 1 ⁄ 4 pennyweights of silver and 17 + 3 ⁄ 4 pennyweights of alloy, with 20 pennyweights to the troy ounce. [11] This is (not precisely) equivalent to a millesimal ...

6. Silver - Wikipedia

   en.wikipedia.org/wiki/Silver

   The usual solutions for restoring the lustre of tarnished silver are dipping baths that reduce the silver sulfide surface to metallic silver, and cleaning off the layer of tarnish with a paste; the latter approach also has the welcome side effect of polishing the silver concurrently. [112]

7. How to clean your bathtub using a grapefruit (plus 6 more ...

   www.aol.com/article/lifestyle/2020/12/01/how-to...

   toilet bowl cleaner Formula: Baking Soda + Tea Tree Oil + Vinegar How-To: Sprinkle half a cup of baking soda into the toilet bowl, add 10 drops of tea-tree oil and a splash of distilled white vinegar.