Definition, Betydelse & Synonymer | Engelska ordet CHROMIUM

Definition av CHROMIUM

1. (grundämnen) krom

Exempel på hur man kan använda CHROMIUM i en mening

• A major development in steel production was the discovery that steel could be made highly resistant to corrosion and discoloration by adding metallic chromium to form stainless steel.
• Rubies are red due to the presence of chromium, and sapphires exhibit a range of colors depending on what transition metal is present.
• The carbides of the group 4, 5 and 6 transition metals (with the exception of chromium) are often described as interstitial compounds.
• Stainless steels, which are resistant to corrosion and oxidation, typically need an additional 11% chromium.
• It contains iron with chromium and other elements such as molybdenum, carbon, nickel and nitrogen depending on its specific use and cost.
• A few years after World War I, Alessi started with producing a wide range of tableware items in nickel, chromium and silver-plated brass.
• The name "alum" is also used, more generally, for salts with the same formula and structure, except that aluminium is replaced by another trivalent metal ion like chromium, and/or sulfur is replaced by another chalcogen like selenium.
• Despite this compound's name, it is unrelated to the element chromium; instead, the ‑chrome suffix indicates a relationship to color, as pure adrenochrome has a deep violet coloration.
• In a January 16, 2011, news story featured in the online edition of the Peoria Journal Star, Associated Press reporter Tammy Webber reported that the oxbow lake, surrounded by a Superfund site, is polluted by high levels of metals such as zinc, lead, arsenic, cadmium, and chromium because of the smelting activity that takes place there for the automotive and appliance industries, chiefly by New Jersey Zinc and Mobil Chemical.
• Pyroxenes have the general formula , where X represents calcium (Ca), sodium (Na), iron (Fe(II)) or magnesium (Mg) and more rarely zinc, manganese or lithium, and Y represents ions of smaller size, such as chromium (Cr), aluminium (Al), magnesium (Mg), cobalt (Co), manganese (Mn), scandium (Sc), titanium (Ti), vanadium (V) or even iron (Fe(II) or Fe(III)).
• This site and the Bare Hills District have historically been sources of chromium ore, and during the 19th century they were the largest producers of chrome in the world.
• which manufactured acid-based chromium, cadmium, cyanide, nickel, and zinc electroplating solutions from 1973 to 1994.
• The United States Environmental Protection Agency has identified Garfield as the site of groundwater contaminated hexavalent chromium from a spill in 1983 at the E.
• An alternative method, developed in the 1800s, is chrome tanning, where chromium salts are used instead of natural tannins.
• It also consists of a little, primarily agricultural oasis containing quarries and mines of magnesium and chromium.
• In steelmaking, impurities such as nitrogen, silicon, phosphorus, sulfur, and excess carbon (the most important impurity) are removed from the sourced iron, and alloying elements such as manganese, nickel, chromium, carbon, and vanadium are added to produce different grades of steel.
• Two of five neighborhoods in Hyde Park appeared to have arsenic, chromium, and dioxin, while all five were found to have PCBs and lead.
• SAE 316 and SAE 316L stainless steel, also referred to as marine grade stainless, is a chromium, nickel, molybdenum alloy of steel that exhibits relatively good strength and corrosion resistance.
• Trace metals within the human body include iron, lithium, zinc, copper, chromium, nickel, cobalt, vanadium, molybdenum, manganese and others.
• Mordants include tannic acid, oxalic acid, alum, chrome alum, sodium chloride, and certain salts of aluminium, chromium, copper, iron, iodine, potassium, sodium, tungsten, and tin.

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