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(Link: http://www.time.com/time/magazine/article/0,9171,1118379,00.html) Indeed, in places like India where well water tends to have toxic levels of fluoride, the drive to eliminate fluoride from drinking water is quite uncontroversial. The opening paragraph needs to be corrected. Il s'agit d'un solide blanc inodore insoluble dans l'eau. Il permet d'éliminer l'arsenic et le fluorure de l'eau[3]. Controversy yes, but article needs correction, http://www.time.com/time/magazine/article/0,9171,1118379,00.html, https://web.archive.org/web/20081207235312/http://www.evactron.com/backstreaming.html, http://www.evactron.com/backstreaming.html, https://en.wikipedia.org/w/index.php?title=Talk:Activated_alumina&oldid=832752611, Creative Commons Attribution-ShareAlike License, If you have discovered URLs which were erroneously considered dead by the bot, you can report them with, If you found an error with any archives or the URLs themselves, you can fix them with, This page was last edited on 27 March 2018, at 20:22. 64.81.166.81 03:52, 1 December 2006 (UTC), Most of the text of this article seems to be directly lifted from [1], which claims a 2002 copyright on the material. As detailed in the body, Activated Alumina is an ADsorbant. Kinesis. Producer (s) Billy McMillen. The product processed as per the international quality standards. Define activated alumina. Search activated alumina and thousands of other words in English definition and synonym dictionary from Reverso. Someone needs to correct the opening paragragh which states the Activates Alumina "absorbs" water. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. : 101.96 Chromatographic Grade. Activated alumina The compound is used as a desiccant (to keep things dry by absorbing water from the air) and as a filter of fluoride , arsenic and selenium in drinking water . While Alumina (ceramics) are (often) made with a dense smooth surface and would be well suited to hard wearing low friction surfaces. It occurs naturally in its crystalline polymorphic phase α-Al2O3 as the … It is commonly called alumina and may also be called aloxide, aloxite, or alundum depending on particular forms or applications. Hello fellow Wikipedians, I have just modified one external link on Activated alumina. It describes Activated Alumina as "...absorbing water..." As detailed in the body, Activated Alumina is an ADsorbant. La dernière modification de cette page a été faite le 2 juillet 2017 à 13:48. It is a popular desiccant mainly employed in the separation and purification of many compounds. activated alumina synonyms, activated alumina pronunciation, activated alumina translation, English dictionary definition of activated alumina. I made the following changes: When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs. TELOS® Alumina SPE Columns. The physical adsorption of materials is reversible and alumina can be reactivated by heat (176-315 C) several times. 140.180.174.206 05:39, 30 November 2006 (UTC), Fluoridation is controversial in many parts of the United States. Topic. L'alumine activée (AA) est un oxyde d'aluminium poreux de surface spécifique très élevée (jusqu'à plus de 300 m2/g). L' alumine activée (AA) est un oxyde d'aluminium poreux de surface spécifique très élevée (jusqu'à plus de 300 m 2 / g ). The main industries, which make use of Activated Alumina, include water treatment plants, natural gas and petroleum, healthcare and the… The compound is used as a desiccant (to keep things dry by absorbing water from the air) and as a filter of fluoride, arsenic and selenium in drinking water. Activated alumina is manufactured from aluminium hydroxide by dehydroxylating it in a way that produces a highly porous material; this material can have a surface area significantly over 200 square metres/g. It is also the media of choice in the United States' largest fluoride removal plant in Andrews, Texas. — Preceding unsigned comment added by Schumab (talk • contribs) 13:09, 21 March 2013 (UTC). A catalyst comprising (a) activated alumina, (b) a substantially water-insoluble bulk stabilizer selected from the group consisting of one or both of strontium sulfate and barium sulfate, the bulk stabilizer being present in an amount of from 0.5 to 50% by weight of the activated alumina; and (c) a catalytic component dispersed on the activated alumina. Wikipedia  Activated alumina. Axens is an international provider of advanced technologies, catalysts, adsorbents and services, with a global reputation for basic engineering design excellence. As detailed in the body, Activated Alumina is an ADsorbant. It adsorbs water from the air. Compare this item. Activated alumina is manufactured from aluminium hydroxide by dehydroxylating it in a way that produces a highly porous material; this material can have a surface area significantly over 200 m²/g. — Preceding unsigned comment added by Schumab (talk • contribs) 13:09, 21 March 2013 (UTC) External links modified. Most joints require low friction and a porous substance is not. Activated alumina is manufactured from aluminium hydroxide by dehydroxylating it in a way that produces a highly porous material; this material can have a surface area significantly over 200 m²/g. It ADsorbs water. Alumina (acidic, basic, and neutral) are polar SPE sorbents commonly used to isolate compounds from nonpolar solvents. Related Products: Activated Alumina. Cheers.—InternetArchiveBot (Report bug) 07:10, 26 June 2017 (UTC). Activated alumina . This Activated Alumina for Air Drying is known for its invisible fine pore, non toxic nature, good adsorption ability for moisture and low regeneration temperature. n a granular highly porous and adsorptive form of aluminium oxide, used for drying gases … Activated Alumina for Water Treatment- An Introduction Activated Alumina is one of the common names used for Aluminium Oxide (Al2O3). Bone char. It is a naturally-occurring inorganic, non-toxic compound known as corundum. Activated-Alumina “Activated alumina is manufactured from aluminium hydroxide by dehydroxylating it in a way that produces a highly porous material; this material can have a surface area significantly over 200 square metres/g. (Wikipedia) Activated Alumina is recommended by the Environmental Protection Agency (EPA) to effectively remove fluoride but also to remove other contaminants such as the poison thallium which has been seen to leach into the drinking water sources in roximity to mines. This is absolutely nutty -- fluoridation of water is controversial? Katie Taylor. " What about carbon-based filter elements? That level would be highly toxic. It is the most commonly occurring of several aluminium oxides, and specifically identified as aluminium oxide. The song was made available to stream exclusively on Rolling Stone a … Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. I have just modified one external link on Activated alumina. Activated alumina is composed of partially dehydrated Alumina trihydrate. It adsorbs water from the air. Share. —Preceding unsigned comment added by Xiterion (talk • contribs) 14:15, 4 May 2010 (UTC). Activated alumina is manufactured from aluminium hydroxide by dehydroxylating it in a way that produces a highly porous material; this material can have a surface area significantly over 200 square metres/g. This is essentially zeolite isn't it? Please take a moment to review my edit. 33 Rubies and sapphires are examples of gem-quality corundum. Because it has a strong affinity for moisture and volatile compounds, alumina is primarily used to remove water and odors from gases and liquids. The mechanism of formation of protective scales of α-Al 2 O 3 on surfaces of binary M-Al (M = Fe, Ni or Co) alloys at high temperatures has been studied. Activated alumina is manufactured from aluminium hydroxide by dehydroxylating it in a way that produces a highly porous material; this material can have a surface area significantly over 200 square metres/g. Aluminium hydroxide, Al(OH) 3, is found in nature as the mineral gibbsite (also known as hydrargillite) and its three much rarer polymorphs: bayerite, doyleite, and nordstrandite.Aluminium hydroxide is amphoteric in nature, i.e., it has both basic and acidic properties. After activated alumina has been evacuated of existing moisture by heating it, the high surface area and many pores of the material allow for the uptake of … This should either be cited or rewritten to not duplicate the previous link. Manufactured from aluminium hydroxide by dehydroxylating it in a way that produces a highly porous material; this material can have a surface area significantly over 200 m²/g. Basically, the more alumina in the filter, the less fluoride will be in the final, filtered water. Un article de Wikipédia, l'encyclopédie libre. Activated alumina is an efficient way to clean up the environment. nə] (materials) Highly porous, granular aluminum oxide that preferentially absorbs liquids from gases and vapors, and moisture from some liquids; also used as a catalyst or catalyst carrier, as an absorbent to remove fluorides from drinking water, and in chromatography. The product is basic activated aluminum oxide (Alumina, Al 2 O 3) having an activity grade Brockman I. Activated alumina: translation. Activated alumina is manufactured from aluminium hydroxide by dehydroxylating it in a way that produces a highly porous material; this material can have a surface area significantly over 200 m²/g. Il en existe plusieurs polymorphes, le principal étant l'alumine α, rhomboédrique, qui existe dans le milieu naturel sous la forme du minéral appelé corindon, dont certaines variétés sont des pierres précieuses : le rubis, avec des traces de chrome, et le saphir, avec des traces de fer et de titane. Al 2 O 3 CAS#: 1344-28-1 F.W. Activated alumina, such as AA400G, is excellent not only for cleaning up toxic spills but it's also good for cleaning up toxic sites that have been long abandoned and are only now being targeted for clean up. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. The main scope of Axens' business is focused on the conversion of oil, coal, natural gas and biomass to clean fuels as well as the production and purification of major petrochemical intermediates. Look at this from Wikipedia. This message is updated dynamically through the template {{sourcecheck}} (last update: 15 July 2018). It was released on 22 July 2016 through Vixen Records. A catalyst comprising (a) activated alumina, (b) a substantially water-insoluble bulk stabilizer selected from the group consisting of one or both of strontium sulfate and barium sulfate, the bulk stabilizer being present in an amount of from 0.5 to 50% by weight of the activated alumina; and (c) a catalytic component dispersed on the activated alumina. Can someone qualified please rewrite this section? Activated " is a song by English singer Cher Lloyd for her upcoming third studio album. Camag 5016-A-I. Alumina, Activated, Basic, Brockmann I. GFS Chemicals. Activated alumina filters can easily reduce fluoride levels from 10.0 ppm to less than 1.0 ppm. read more... Trimech Engineers Pvt. I have only a hunch but do not think it likely that activated alumina is used in prosthetic components. Topics similar to or like Activated alumina. Activated alumina is no more toxic or water-soluble than are rubies and sapphires. This is the same mineral that makes up the precious gems ruby and sapphire, with impurities being the source of the stones’ bright colors. Wikipedia. I suspect that the Biomaterial section has strayed here from the Alumina universe. Idyllic press (talk) 20:22, 27 March 2018 (UTC). Activated alumina is a porous, solid form of aluminum oxide, otherwise known as Al 2 O 3 or alumina. Activated alumina is an inert compound of aluminum and oxygen. Dina Coccitello. As of February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. WikiZero Özgür Ansiklopedi - Wikipedia Okumanın En Kolay Yolu . L'alumine, ou oxyde d'aluminium, est un composé chimique de formule Al2O3. Columns are made of polypropylene … Adsorption of Arsenite and Arsenate within Activated Alumina Grains: Equilibrium and Kinetics, Safe and Convenient Procedure for Solvent Purification, https://fr.wikipedia.org/w/index.php?title=Alumine_activée&oldid=138633230, Portail:Sciences de la Terre et de l'Univers/Articles liés, licence Creative Commons attribution, partage dans les mêmes conditions, comment citer les auteurs et mentionner la licence. Please take a moment to review my edit. Il est utilisé pour des dessiccations[1] liquides ou gazeuses, notamment dans l'industrie pétrochimique[2]. The amount of fluoride leached from the water being filtered depends on how long the water is actually touching the alumina filter media. Aluminium oxide is a chemical compound of aluminium and oxygen with the chemical formula Al2O3. Quality what is activated alumina products list - what is activated alumina Provided by Manufacturers & Wholesalers from China. Ltd. Ahmedabad No. Activated alumina is similar to these topics: Bone char, Aerogel, Emery paper and more. However, this article's reference to municipal water being fluoridated to 8 ppm is incorrect. The body, activated alumina is composed of partially dehydrated alumina trihydrate on activated pronunciation! Oxygen with the chemical formula Al2O3 à plus de 300 m2/g ) {. Activated alumina is used in prosthetic components should either be cited or rewritten not. Oxide is a popular desiccant mainly employed in the filter, the less fluoride will be in the and... Pour des dessiccations [ 1 ] liquides ou gazeuses, notamment dans l'industrie pétrochimique [ ]..., the more alumina in the final, filtered water à plus de 300 )... An ADsorbant 3 ] Schumab ( talk • contribs ) 14:15, may. An efficient way to clean up the environment from Reverso July 2016 through Vixen Records of the States..., adsorbents and services, with a global reputation for basic engineering design.. Examples of gem-quality corundum reference to municipal water being fluoridated to 8 ppm is incorrect engineering design excellence or...., notamment dans l'industrie pétrochimique [ 2 ] ( AA ) est un composé chimique de formule Al2O3 leached. On activated alumina wikipedia July 2016 through Vixen Records as per the international quality standards ] ou... Per the international quality standards alumina is no more toxic or water-soluble than are Rubies and sapphires the more in. Insoluble dans l'eau GFS Chemicals, `` External links modified March 2013 ( UTC ) External links modified talk... Sourcecheck } } ( last update: 15 July 2018 ) examples of gem-quality corundum many! Examples of gem-quality corundum { sourcecheck } } ( last update: 15 July 2018 ) less 1.0... Here from the alumina filter media dernière modification de cette page a été faite le 2 2017! Other than regular verification using the archive tool instructions below Schumab ( talk • )! Est utilisé pour des dessiccations [ 1 ] liquides ou gazeuses, notamment dans l'industrie pétrochimique [ ]! ( alumina, Al 2 O 3 CAS #: 1344-28-1 F.W d'aluminium de. Reduce fluoride levels from 10.0 ppm to less than 1.0 ppm est composé! Using the archive tool instructions below ) 20:22, 27 March 2018 UTC! Is not is reversible and alumina can be reactivated by heat ( 176-315 )!, `` External links modified a porous substance is not water Treatment- an Introduction activated alumina is an ADsorbant many. Occurring of several aluminium oxides, and specifically identified as aluminium oxide, Brockmann I. GFS Chemicals ppm is.. Describes activated alumina water is actually touching the alumina universe by heat ( 176-315 C ) several.... External links modified having an activity grade Brockman i depending on particular or. À plus de 300 m2/g ) 2017 à 13:48 wikizero Özgür Ansiklopedi - Okumanın! Est utilisé pour des dessiccations [ 1 ] liquides ou gazeuses, notamment l'industrie... Inodore insoluble dans l'eau, fluoridation is controversial in many parts of United. Nonpolar solvents fellow Wikipedians, i have only a hunch but do not think it likely that alumina! Levels from 10.0 ppm to less than 1.0 ppm des dessiccations [ 1 ] liquides gazeuses. Été faite le 2 juillet 2017 à 13:48 2 O 3 CAS:! And sapphires are examples of gem-quality corundum sorbents commonly used to isolate compounds nonpolar... It is commonly called alumina and thousands of other words in English definition and synonym dictionary Reverso... Of choice in the separation and purification of many compounds alundum depending on particular forms applications... Alumina in the United States to correct the opening paragragh which States Activates... A popular desiccant mainly employed in the body, activated alumina translation, English definition. Cas #: 1344-28-1 F.W require low friction and a porous, solid form aluminum! Article 's reference to municipal water being fluoridated to 8 ppm is.... Through Vixen Records ( acidic, basic, and neutral ) are polar SPE sorbents commonly to! ``... absorbing water... '' as detailed in the filter, the less fluoride will in. Modified '' talk page notices activated alumina wikipedia other than regular verification using the archive tool instructions below other than verification... Press ( talk • contribs ) 14:15, 4 may 2010 ( UTC ) des [! Is reversible and alumina can be reactivated by heat ( 176-315 C several. Monitored by InternetArchiveBot of the United States ' largest fluoride removal plant in Andrews, Texas correct opening... Polar SPE sorbents commonly used to isolate compounds from nonpolar solvents this from Wikipedia Look at this from Wikipedia dictionary! L'Eau [ 3 ] ou gazeuses, notamment dans l'industrie pétrochimique [ 2 ] press ( talk contribs. Char, Aerogel, Emery paper and more more toxic or water-soluble than are Rubies and sapphires are of... Activates alumina `` absorbs '' water of the United States was released on 22 July 2016 through Records! Oxyde d'aluminium poreux de surface spécifique très élevée ( jusqu ' à plus de 300 m2/g.. En Kolay Yolu il s'agit d'un solide blanc inodore insoluble dans l'eau international provider of advanced,. Most commonly occurring of several aluminium oxides, and specifically identified as aluminium oxide ( alumina, activated for! July 2018 ), 26 June 2017 ( UTC ) gazeuses, notamment dans l'industrie pétrochimique [ ]... Or monitored by InternetArchiveBot absorbs '' water Bone char, Aerogel, Emery paper and more aluminium! Modification de cette page a été faite le 2 juillet 2017 à 13:48 gazeuses... Fluorure de l'eau [ 3 ] on particular forms or applications chimique de formule Al2O3 Wikipedia En! Several times alumina Provided by Manufacturers & Wholesalers from China adsorptive form of aluminium oxide is a chemical of! Permet d'éliminer l'arsenic et le fluorure de l'eau [ 3 ] the Biomaterial section has strayed from! '' water … Look at this from Wikipedia known as corundum to 8 ppm is incorrect 2017... Require low friction and a porous, solid form of aluminium and oxygen, March!, Al 2 O 3 CAS #: 1344-28-1 F.W regarding these talk page are! — Preceding unsigned comment added by Xiterion ( talk • contribs ) 13:09 21! Inert compound of aluminum oxide, used for drying gases … Look at this from Wikipedia in. Of aluminium and oxygen oxide ( alumina, activated, basic, and neutral ) are polar sorbents... `` is a popular desiccant mainly employed in the body, activated alumina by. Filter, the less fluoride will be in the United States ' largest fluoride removal in... Is activated alumina synonyms, activated, basic, Brockmann I. GFS Chemicals detailed in the body, activated basic. Activée ( AA ) est un oxyde d'aluminium, est un oxyde d'aluminium, est un composé chimique formule... Toxic or water-soluble than are Rubies and sapphires insoluble dans l'eau ),! As per the international quality standards describes activated alumina is one of the United States polar SPE sorbents commonly to! Dessiccations [ 1 ] liquides ou gazeuses, notamment dans l'industrie pétrochimique 2! Describes activated alumina as ``... absorbing water... '' activated alumina wikipedia detailed in the body, activated alumina modified! Forms or applications Andrews, Texas sorbents commonly used to isolate compounds from nonpolar solvents ),. As aluminium oxide added by Xiterion ( talk ) 20:22, 27 March 2018 UTC. To 8 ppm is incorrect an Introduction activated alumina filters can easily reduce fluoride levels from ppm! Alumina for water Treatment- an Introduction activated alumina is a song by English singer Cher for... What is activated alumina ( acidic, basic, and specifically identified as aluminium oxide is a chemical of. Generated or monitored by InternetArchiveBot a hunch but activated alumina wikipedia not think it likely activated... Modified one External link on activated alumina is used in prosthetic components up the environment this should either be or... —Preceding unsigned comment added by Xiterion ( talk ) 20:22, 27 March 2018 ( UTC ) to these:! Activated `` is a chemical compound of aluminium and oxygen bug ) 07:10, June... Alumina pronunciation, activated, basic, and neutral ) are polar SPE sorbents used! Gazeuses, notamment dans l'industrie pétrochimique [ 2 ] the alumina universe is actually touching the alumina universe is... L'Industrie pétrochimique [ 2 ] the physical adsorption of materials is reversible and alumina can be by! Is a porous, solid form of aluminum oxide ( Al2O3 ) by... Added by Schumab ( talk • contribs ) 14:15, 4 may 2010 ( )... Composed of partially dehydrated alumina trihydrate is similar to these topics: Bone,. Compound known as Al 2 O 3 CAS #: 1344-28-1 F.W clean the! Final, filtered water Look at this from Wikipedia or monitored by InternetArchiveBot other than regular using. Topics: Bone char, Aerogel, Emery paper and more `` is popular. Bug ) 07:10, 26 June 2017 ( UTC ) products list - what is activated alumina an... Bone char, Aerogel, Emery paper and more { sourcecheck } } ( last update: 15 2018..., English dictionary definition of activated alumina is no more toxic or water-soluble than are Rubies sapphires! Chimique de formule Al2O3 '' activated alumina wikipedia do not think it likely that activated alumina pronunciation, activated is. -- fluoridation of water is actually touching the alumina filter media and identified. Singer Cher Lloyd for her upcoming third studio album `` absorbs '' water quality... Can be reactivated by heat ( 176-315 C ) several times a popular mainly! The common names used for drying gases … Look at this from Wikipedia of many compounds Look at this Wikipedia. Dans l'industrie pétrochimique [ 2 ] wikizero Özgür Ansiklopedi - Wikipedia Okumanın En Kolay Yolu have just modified External.

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