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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 not a bacterial infection, but the result of a chemical ...
Adrenoleukodystrophy (ALD) is a disease linked to the X chromosome. It is a result of fatty acid buildup caused by failure of peroxisomal fatty acid beta oxidation which results in the accumulation of very long chain fatty acids in tissues throughout the body.
The Late Bronze Age collapse was a time of widespread societal collapse during the 12th century BC. It was associated with environmental change, mass migrations, city destructions and trade route disruptions that limited bronze production. The collapse affected a large area of the Eastern Mediterranean (North Africa and Southeast Europe) and ...
Aceruloplasminemia. Atransferrinemia. Hereditary haemochromatosis type 1 (HFE-related haemochromatosis) [3] is a genetic disorder characterized by excessive intestinal absorption of dietary iron, resulting in a pathological increase in total body iron stores. [4] Humans, like most animals, have no mechanism to regulate excess iron, simply ...
Verdigris is a naturally occurring protective layer on metals such as copper, brass, and bronze. In addition to be a desirable artistic effect, it has been used primarily as a pigment and now-outdated medicinal preparations. When burned, verdigris produces a green flame. [ 23 ]
Tin medal affected by tin pest. Tin pest is an autocatalytic, allotropic transformation of the element tin, which causes deterioration of tin objects at low temperatures. Tin pest has also been called tin disease, [1] tin blight, tin plague, [2] or tin leprosy. [3] It is an autocatalytic process, accelerating once it begins.
Sodium sesquicarbonate (systematic name: trisodium hydrogendicarbonate) Na 3 H (CO 3) 2 is a double salt of sodium bicarbonate and sodium carbonate (NaHCO 3 · Na 2 CO 3), and has a needle-like crystal structure. However, the term is also applied to an equimolar mixture of those two salts, with whatever water of hydration the sodium carbonate ...
Benzotriazole is an effective corrosion inhibitor for copper and its alloys by preventing undesirable surface reactions. It is known that a passive layer, consisting of a complex between copper and benzotriazole, is formed when copper is immersed in a solution containing benzotriazole. The passive layer is insoluble in aqueous and many organic ...