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  2. Conservation and restoration of silver objects - Wikipedia

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

    After polishing, the silver object is rinsed in deionized water and dried with a cotton cloth. [12] Once cleaned and dried the silver is wrapped in acid-free tissue paper and placed in a sealed plastic bag. A 3M anti-tarnish strip is also placed in the bag to absorb any sulfur that may be in the air. The tissue paper is used as a buffer to ...

  3. 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 ...

  4. How To Clean Copper For Tarnish-Free Shine - AOL

    www.aol.com/clean-copper-tarnish-free-shine...

    For items stored in cabinets, wrapping them with plastic wrap, cloth, or tarnish-free paper can prevent tarnishing. Get more enjoyment out of your pieces by caring for them often, and before you ...

  5. Silver sulfide - Wikipedia

    en.wikipedia.org/wiki/Silver_sulfide

    It constitutes the tarnish that forms over time on silverware and other silver objects. Silver sulfide is insoluble in most solvents, but is degraded by strong acids. Silver sulfide is a network solid made up of silver (electronegativity of 1.98) and sulfur (electronegativity of 2.58) where the bonds have low ionic character (approximately 10%).

  6. Cleaning agent - Wikipedia

    en.wikipedia.org/wiki/Cleaning_agent

    A glass cloth ideal for the purpose and soft water to which some methylated spirit or vinegar is added which is an inexpensive glass cleaner. Silverware can be freed of silver sulfide tarnish with thiourea, and either hydrochloric or sulfuric acid.

  7. Argentium sterling silver - Wikipedia

    en.wikipedia.org/wiki/Argentium_sterling_silver

    Argentium silver (patented in 1998) [1] is a brand of modern tarnish-resistant silver alloys, containing either 93.5%, 94% or 96% silver.Argentium alloys replace some of the copper in the traditional sterling silver (92.5% silver + 7.5% copper) with the metalloid germanium.