kromium

listen to the pronunciation of kromium
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(Tıp) chromium
A hard, brittle, semi-gray metal Uses includes alloys and plating element on metal and plastic substrates for corrosion resistance Protective coating for automotive and equipment accessories Hazard: Chromium compounds are suspected of producing tumors of the lungs, and nasal cavity Corrosive action on the skin and mucous membranes If exposure continues, perforation of the nasal septum may result
A hard, steel-gray metal that takes a high polish, it is used in alloys (e.g., ferrochromium, steel, stainless steel) to increase strength and corrosion resistance. It usually has valence 2, 3, or 6 and always occurs combined with other elements, especially oxygen; chromite is its only commercial source. Various coloured gemstones (e.g., ruby, emerald, serpentine) owe their colour to chromium. Sodium chromate and dichromate are used in leather tanning, in metal surface treatment, and as catalysts. Chromium trioxide is used in chrome plating and as a colorant for ceramics. Chromium oxide, lead chromate, and various other chromium compounds are used as pigments. Chromium dioxide, strongly magnetic, is used in recording tapes and as a catalyst
What it's good for: Acts cooperatively with other substances to control insulin and certain enzymes Where you get it: Cheese, whole grains, meat, peas, beans and blackstrap molasses DRI or RDA: None
Chromium sources of emissions include the combustion of coal and oil, electroplating, vehicles, iron and steel plants, and metal smelters The emissions reflected in this assessment are based on state and local agency reporting of chromium as "chromium and compounds," individual chromium compounds and chromium ions Because of the inconsistent reporting, all of the chromium was lumped together for dispersion modeling as "Chromium VI " EPA then based quantitative risk estimates on an assumption that 34 percent of the chromium is hexavalent chromium (which is the most toxic form) based on information from past inventorying efforts
A naturally occurring trace metal that can be toxic to humans and aquatic life Sources of chromium in surface waters include wastewater from electroplating operations, leather tanning industries, and textile manufacturing Measured in µg/L or ppb The MCL for chromium is 0 1 mg/L or ppm
One of 11 pollutants of concern, chromium is a naturally occurring inorganic substance It also has many uses in industry, such as in steel making and metal finishing It is also used in lining industrial furnaces, the manufacture of dyes and pigments, leather tanning, and wood preserving
Chromium is a metallic, non-toxic element, with period table symbol Cr Chromium does not have any function in the human body
{i} (Cr) chrome a metallic element (Chemistry)
in photosensitive process, a blue-white metallic element compound which is used as a bleaching or hardening agent
A comparatively rare element occurring most abundantly in the mineral chromite
which are brilliantly colored and are used dyeing and calico printing
Metallic element of atomic number 24 (Cr), atomic weight 52, name derived from Greek, for color
- Human carcinogen Avoid exposure
a hard brittle blue-white multivalent metallic element; resistant to corrosion and tarnishing
A heavy metal that exists naturally as the trivalent (III) form and is man-made in the hexavalent (VI) form It is used in making chrome-steel and chrome-nickel-steel alloys, chrome plating of metals, brick lining for high-temperature industrial furnaces, dyes, pigments, leather, wood preservatives, and cooling tower water treatment The ultimate fate of chromium is to settle into sediments, however, it is slightly soluble and can persist in the water column for years before settling Chromium is a Group B, human carcinogen by inhalation See Heavy Metals
An alloying element that is the essential stainless steel raw material for confeffing corrosion resistance A film that naturally forms on the surface of stainless steel self-repairs in the presence of oxygen if the steel is damaged mechanically or chemically and thus prevents corrosion from occurring
an essential trace mineral required for energy and glucose metabolism Chromium is sometimes called GTF (Glucose Tolerance Factor) Chromium is vital for synthesis of cholesterol, fats and protein, and stabilizes blood sugar through proper insulin use The average U S diet is chromium deficient, which can lead to anxiety, fatigue, glucose intolerance, and inadequate amino acid metabolism Chromium must be chelated for proper absorption
Chromium is a hard, shiny metallic element, used to make steel alloys and to coat other metals. chromium-plated fire accessories. a hard blue-white metal that is used to cover metal objects with a shiny silver protective surface. It is a chemical element : symbol Cr (chrome; CHROME). Metallic chemical element, one of the transition elements, chemical symbol Cr, atomic number
Its chief commercial importance is for its compounds, as potassium chromate, lead chromate, etc
An alloying element that is used in stainless steel to deter corrosion
kromium
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