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Bronze disease is an irreversible and nearly inexorable corrosion process that occurs when chlorides come into contact with bronze or other copper-bearing alloys. [1] It can occur as both a dark green coating, or as a much lighter whitish fuzzy or furry green coating. [1]
It is made of a synthetic resin with what is often referred to as a corrosion inhibitor (benzotriazole) that is very durable in outdoor conditions. [4] Benzoltriazole has also been referred to as a UV stabilizer rather than a corrosion inhibitor. [3] Cobratec 99: Cobratec 99 is manufactured by Sherwin Williams Chemical Company. Cobratec 99 is a ...
You can remove rust corrosion from metal objects without damaging the surface. This expert-recommended DIY method calls for vinegar, salt, and baking soda.
Brasso has also been used to polish out scratches in plastics: It has been used to polish CDs, DVDs, screens, and pools to repair scratches. It is a mild solvent and an extremely fine abrasive, so when applied to the reflective surface of the disc and rubbed radially (in straight lines between the edge and centre), it can smooth scratches and reduce their effect.
Copper, brass and bronze can develop a shiny pitted surface and can become covered with a layer of concretion as well as green or black corrosion. Ferrous metals such as cast and wrought iron and steel usually corrode to form thick concretions that can entirely cover the metal object. [ 9 ]
The faucet or shower head that inexplicably gets clogged is most likely a victim of hard water too. And there's more. ... Watch the video to learn how to remove hard water stains and build-up from ...
Green rust (SO 2− 4) synthesized under anaerobic conditions in the absence of dissolved oxygen. Green rust is a generic name for various green crystalline chemical compounds containing iron(II) and iron(III) cations, the hydroxide (OH −) anion, and another anion such as carbonate (CO 2− 3), chloride (Cl −), or sulfate (SO 2−
Derveni krater, bronze, 350 BC, height: 90.5 cm (35 1 ⁄ 2 in.), Inv. B1, Archaeological Museum of Thessaloniki, after cleaning and conservation. Conservation and restoration of metals is the activity devoted to the protection and preservation of historical (religious, artistic, technical and ethnographic) and archaeological objects made partly or entirely of metal.