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These include the formation of a black incrustation or a white powdery substance (mineral deposits) that has the potential to obscure the natural blue-green patina, or artificially applied patinas. Pollution-formed crusts could cause the metal to deteriorate and form small pits in the metal if not removed. [1]
The oxide may coat the artefact with unsightly but harmless black spots or generally darken the metal. [2] [3] The duration of soaking may be days to weeks or even a year for severely contaminated objects. The sesquicarbonate may remove copper from the artefact as it forms a complex ion with copper. Amateurs report that the patina may be ...
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 ...
The good news: there are still ways to wear your favorite pieces of jewelry. The post This Is Why Your Skin Turns Green After Wearing Certain Jewelry appeared first on Reader's Digest.
M.S. Rau's Sherita Bougere offers up her best advice on how to clean and polish brass at home.
Patina (/ p ə ˈ t iː n ə / pə-TEE-nə or / ˈ p æ t ɪ n ə / PAT-ih-nə) is a thin layer that variously forms on the surface of copper, brass, bronze, and similar metals and metal alloys (tarnish produced by oxidation or other chemical processes), or certain stones [1] and wooden furniture (sheen produced by age, wear, and polishing), or ...
Bone, antler, horn, and ivory objects can be fastened to the mounts through the application of wires or flat acrylic plastic clips. However, metals that come into direct contact with these organic objects can cause damage. The fats that may remain in these organic items react with metal, forming corrosion products that will stain the objects.
Plastic rings will (hopefully) soon be eliminated. This hack might soon be an unnecessary relic of the past. Fortunately, many brands are making efforts to reduce or eliminate single-use items ...
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