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manganese
manganese
manganese Symbol Mn. A grey brittle metallic element that is a trace element (see
essential element) for living organisms. It functions as a cofactor for several enzymes.
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Manganese Dosimetry: Species Differences and Implications for Neurotoxicity
Magazine article from: Critical Reviews in Toxicology; 1/1/2005; ; 700+ words
; Manganese (Mn) is an essential mineral that is found at low levels...certain high-dose exposure conditions, elevations in tissue manganese levels can occur. Excessive manganese accumulation can result in adverse neurological, reproductive...
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Manganese in drinking water: higher doses may hamper intellectual function.(Environews / Science Selections)
Magazine article from: Environmental Health Perspectives; 1/1/2006; ; 700+ words
; Manganese is an essential nutrient for humans...studies have linked inhalation of excessive manganese to neurotoxicity in adults. Now a group...suggests that ingesting high doses of manganese in drinking water can hamper intellectual...
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Manganese inhaled from the shower: a public health threat?(EH Update)
Magazine article from: Journal of Environmental Health; 11/1/2005; 700+ words
; ...animal studies suggests that showering in manganese-contaminated water for a decade or...The damage may occur even at levels of manganese considered safe by the U.S. Environmental...people in the United States are exposed to manganese levels that our study shows may cause...
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Manganese Sulfate Landscape Changes Following Consolidation
Magazine article from: Chemical Market Reporter; 5/5/1997; ; 700+ words
; MANGANESE SULFATE IMPORTS are increasing and production...sulfates--said to consist primarily of manganese sulfate--imported from China increased...Inc., the largest importer of Chinese manganese sulfate and a wholly owned US subsidiary...
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Manganese: Steelmaking is still the customer
Magazine article from: Engineering and Mining Journal; 3/1/1998; ; 700+ words
; Manganese demand continued to be dominated by steelmaking...century. Economics and metallurgy make manganese a key element because of its sulphur...the United States, over 85% of total manganese demand came from the steel and ferrous...
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Manganese: China becomes a new testing ground
Magazine article from: Engineering and Mining Journal; 3/1/1997; ; 700+ words
; Thomas S. Jones, manganese specialist U.S. Geological Survey...As it has been for over a century, manganese demand was dominated by steelmaking...industry accounted for over 85% of total manganese demand, most of which was for manganese...
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Manganese as a potential confounder of serum prolactin.(Correspondence)
Magazine article from: Environmental Health Perspectives; 8/1/2006; ; 700+ words
; ...should consider the possibility that manganese confounded their data; if so, the data...reexamined. A strong relationship between manganese exposure and serum prolactin levels has...a target for excessive exposure to manganese (Mutti and Smargiassi 1998; Smargiassi...
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Manganese: Steelmaking still the keystone
Magazine article from: Engineering and Mining Journal; 3/1/1999; ; 700+ words
; ...the themes for much of the world's manganese industry. In Western countries, these...for much of Brazil's production of manganese ferroalloys. Later in the year, as...refocusing, its facilities for production of manganese ore (GEMCO, Northern Territory) and...
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Manganese - Global Strategic Business Report Profiles 47 Companies Including Many Key and Niche Players Worldwide Such as Assmang Ltd., Carus Chemical Company and Compania Minera De L'ogooue.
Business Wire; 7/12/2007; 700+ words
; ...has announced the addition of Manganese - Global Strategic Business Report...analyzes the worldwide markets for Manganese in Thousands of Metric Tonnes. The major product segments analyzed are Manganese Alloys (Ferro Manganese (FeMn...
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Manganese Prices Offer Hope.
M2 Presswire; 3/3/2009; 700+ words
; ...Technologies Inc (OTC:BZTG): Manganese Prices Offer Hope(C)1994-2009...COMMUNICATIONS LTD RDATE:03032009 Manganese, a crucial steelmaking ingredient...ARM, and also OM Holdings. Huge manganese profits featured heavily in Anglo...
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manganese
Book article from: The Columbia Encyclopedia, Sixth Edition
manganese [Lat.,=magnet], metallic chemical...valence principally +2, +4, or +7. Manganese is a pinkish-gray, chemically active...properties. It can be highly polished. Manganese tarnishes in moist air and oxidizes when...
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Manganese (revised)
Book article from: Chemical Elements: From Carbon to Krypton
MANGANESE (REVISED) Note: This article, originally...2006 for the eBook edition. Overview Manganese is a transition metal. The transition...time to discover the difference between manganese and iron. The two metals have very similar...
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manganese nodules
Book article from: The Oxford Companion to the Earth
manganese nodules When HMS Challenger made its...expected discoveries was the presence of manganese-rich nodules sitting on the sea bed...them to be composed of the oxides of manganese and iron, and also to contain small...
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Manganese
Encyclopedia entry from: Gale Encyclopedia of Alternative Medicine
Manganese Description Not to be confused with magnesium , manganese is a trace mineral used by some people to help prevent...important chemical reactions. Even without taking manganese supplements, people with an average diet consume somewhere...
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manganese nodule
Book article from: A Dictionary of Ecology
manganese nodule A concretion of iron and manganese oxides which also contains copper, nickel, and cobalt...and are layered internally. The average composition is: manganese 30 per cent; iron 24 per cent; nickel 1 per cent; copper...
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