ash (combustion)

Home > ... > Science and Technology > Chemistry > Compounds and Elements > ...

Essential reading Compare
side-by-side The Concise Oxford Dictionary of English Etymology The Columbia Encyclopedia, Sixth Edition

ash

ash in chemistry, solid residue of combustion. The chemical composition of an ash depends on that of the substance burned. Wood ash contains metal carbonates (e.g., potassium carbonate) and oxides formed from metals originally compounded in the wood. Coal ash usually has a high content of minerals and is sometimes contaminated with rock; during combustion the mineral matter may become partially fused, forming cinders or clinker. Bone ash is largely made up of calcium phosphate. Seaweed ash (called kelp or varec) contains sodium carbonate, potassium carbonate, and iodine that can be extracted. Fly ash is very fine ash produced during the combustion of many materials.

Create a link to this page

Copy and paste this link tag into your Web page or blog:

<a href="http://www.encyclopedia.com/topic/.aspx#1E1-ashChe" title="Facts and information about ash (combustion)">ash (combustion)</a>

Give this article a thumbs-up on StumbleUpon

Cite this article
Pick a style below, and copy the text for your bibliography.

MLA
Chicago
APA

"ash." The Columbia Encyclopedia, Sixth Edition. 2008. Encyclopedia.com. 24 Dec. 2009 <http://www.encyclopedia.com>.

"ash." The Columbia Encyclopedia, Sixth Edition. 2008. Encyclopedia.com. (December 24, 2009). http://www.encyclopedia.com/doc/1E1-ashChe.html

"ash." The Columbia Encyclopedia, Sixth Edition. 2008. Retrieved December 24, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-ashChe.html

Learn more about citation styles

ash

The Concise Oxford Dictionary of English Etymology | 1996 | | Â© The Concise Oxford Dictionary of English Etymology 1996, originally published by Oxford University Press 1996. (Hide copyright information) Copyright

ash2 powdery residue of combustion. OE. æsċe, æxe = MLG. asche, Du. as, OHG. asca (G. asche), ON, aska; cf. Goth. *azgō. Ash Wednesday first day of Lent XIII; after ecclL. dies cinerum ‘day of ashes’; cf. F. jour or mercredi des cendres, G. aschermittwoch.

Create a link to this page

Copy and paste this link tag into your Web page or blog:

<a href="http://www.encyclopedia.com/topic/.aspx#1O27-ash1" title="Facts and information about ash (combustion)">ash (combustion)</a>

Cite this article
Pick a style below, and copy the text for your bibliography.

MLA
Chicago
APA

T. F. HOAD. "ash." The Concise Oxford Dictionary of English Etymology. 1996. Encyclopedia.com. 24 Dec. 2009 <http://www.encyclopedia.com>.

T. F. HOAD. "ash." The Concise Oxford Dictionary of English Etymology. 1996. Encyclopedia.com. (December 24, 2009). http://www.encyclopedia.com/doc/1O27-ash1.html

T. F. HOAD. "ash." The Concise Oxford Dictionary of English Etymology. 1996. Retrieved December 24, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O27-ash1.html

Learn more about citation styles

Free newspaper and magazine articles

	Combustion residues; current, novel and renewable applications.(Brief article)(Book review) Magazine article from: SciTech Book News; 12/1/2008
	Fly ash and concrete: a study determines whether biomass, or coal co-firing fly ash, can be used in concrete. Magazine article from: The Concrete Producer; 8/1/2006
	Trash or treasure? Putting coal combustion waste to work.(Report) Magazine article from: Environmental Health Perspectives; 11/1/2009

Facts and information from other sites

Related articles from newspapers, magazines, and more

	Usage of coal combustion bottom ash in concrete mixture. Magazine article from: Construction and Building Materials; 9/1/2008; ; 700+ words ; ...remove carbon particles from siliceous coal ash. However, the efficiency of the employed...physical characteristics of the original ash. In Turkey, nearly 28% of the total...burning of bituminous and lignite coal. The ashes produced annually from 11 power plants...carbon from Tuncbilek Power Station ...
	Managing ash from the combustion of solid waste. Magazine article from: Public Works; 7/1/1992; ; 700+ words ; ...handling and disposal of ash. The basic issue concerning solid waste combustion ash management in this country...scientific research, solid waste combustion ash should be handled...grates at the bottom of the combustion chamber or filtered from...
	Evaluation of Fly Ash From Co-Combustion of Coal and Petroleum Coke for Use in Concrete Magazine article from: ACI Materials Journal; 1/1/2007; ; 700+ words ; An investigation of fly ash (FA) produced from various...FA derived from coal-only combustion and its compliance with CSA...studies indicate that the combustion of pet coke results in very...FA resulting from the co-combustion of coal and up to 25% pet...
	Irish band Ash seeks combustion with American audiences.(Knight Ridder/Tribune News Service) Newspaper article from: Knight Ridder/Tribune News Service; 10/6/2002; ; 700+ words ; Ash has blazed away in Europe. Now it's looking...Yet this is hardly your everyday punk band. Ash's latest album, "Free All Angels," arrived...Wheeler, Hamilton and McMurray formed Ash in 1992. The three musicians were born and...
	Irish band Ash seeks combustion with American audiences. Newspaper article from: Knight Ridder/Tribune (via Knight-Ridder/Tribune News Service); 10/2/2002; 700+ words ; Byline: Chuck Myers Ash has blazed away in Europe. Now it's looking...this is hardly your everyday punk band. Ash's latest album, "Free All Angels...Wheeler, Hamilton and McMurray formed Ash in 1992. The three musicians were born...
	Georgia, Ohio Inventors Develop Fly Ash Residual Carbon Combustion Apparatus News Wire article from: US Fed News Service, Including US State News; 10/30/2006; 533 words ; ...method and an apparatus for combustion of residual carbon in fly ash. According to the U.S...Trademark Office: "A system for combustion and removal of residual carbon...array of process units for combustion. The fly ash particles are...
	ISG Resources Announces Technology for Mitigating Ammonia in Coal Combustion Ashes. PR Newswire; 10/25/2000; 700+ words ; ...company dedicated to coal combustion product management...control ammonia in fly ash. Ammonia is an emerging...unburned carbon in fly ash," said R Steve Creamer...expanding the amount of fly ash that can be used in concrete...and consumers of coal combustion products across the United...
	ISG Resources Announces Economical Treatment Technology That Vastly Expands Use of Coal Combustion Ashes. PR Newswire; 10/20/2000; 700+ words ; ...largest company dedicated to coal combustion product management -- has...marketability of formerly unusable fly ash. ISG's proprietary carbon...is used to pre-treat fly ash at electric power plants where...utilities and consumers of coal combustion products across the United...
	Study backs filling mines with coal ash.(filling mines with coal combustion ash) Magazine article from: Waste News; 3/13/2006; ; 700+ words ; ...Backfilling former mines with coal ash is safe, but the practice...concludes filling mines with coal combustion ash is a viable way to dispose...Because the amount of coal combustion residues is large and increasing...The report, "Managing Coal Combustion Residues in Mines,'' is...
	Publication No. WO/2009/149298 Published on Dec. 10, Assigned to SONOASH for Upgraded Combustion Ash, Production Method (Canadian Inventors) News Wire article from: US Fed News Service, Including US State News; 12/14/2009; 435 words ; ...Canada, have developed an upgraded combustion ash and its method of production...a method of producing enhanced combustion ash for use in pozzolanic applications...disclosed an claimed is an enhanced combustion ash produced by the method, whereby...