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Aluminium hydroxide

Definition of the noun aluminium hydroxide

What does aluminium hydroxide mean as a name of something?

noun

  1. white crystalline compound that occurs naturally as the mineral gibbsite

Alternative definition of the noun aluminium hydroxide

noun

  1. [inorganic compound] The hydrated form of alumina, having the formula Al(OH)3; it reacts with bases to form aluminates.

Explanation

Aluminium hydroxide, Al₃, archaically called hydrate of alumina or alumina trihydrate, is found in nature as the mineral gibbsite and its three, much more rare polymorphs: bayerite, doyleite and nordstrandite. Closely related are aluminium oxide hydroxide, AlO, and aluminium oxide, Al₂O₃, differing only by loss of water. These compounds together are the major components of the aluminium ore bauxite. Freshly precipitated aluminium hydroxide forms gels, which is the basis for application of aluminium salts as flocculants in water purification. This gel crystallizes with time. Aluminium hydroxide gels can be dehydrated to form an amorphous aluminium hydroxide powder, which is readily soluble in acids. Aluminium hydroxide powder which has been heated to an elevated temperature under carefully controlled conditions is known as activated alumina and is used as a desiccant, an adsorbent, in gas purification, as a Claus catalyst support, water purification, and an adsorbent for the catalyst during the manufacture of polyethylene by the Sclairtech process.

  • also known as Nhôm hydroxyd, 氢氧化铝

Printed dictionaries and other books with definitions for Aluminium hydroxide

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Google previewThe Sterling Dictionary Of Chemistry (1999)

by Anand Dhingra

ALUMINIUM HYDROXIDE : Al(OH)3; A white crystalline solid. The compound occurs in nature as a mineral gibbsite. It is obtained by bubbling hydrogen sulphide or carbon dioxide gas through the aqueous solution of some aluminium salt.

Google previewPigment Compendium: A Dictionary of Historical Pigments (2007)

by Nicholas Eastaugh, Valentine Walsh, Tracey Chaplin, Ruth Siddall

ALUMINIUM HYDROXIDE White Synonym, variant or common name Commonly used term which may refer...

Aluminium hydroxide, nordstrandite type Aluminium oxides and hydroxides group; Bayerite; Boehmite; Diaspore; Doyleite; Gibbsite; ...

Google previewA Dictionary of Science (2010)

by Elizabeth A. Martin

aluminium hydroxide minium is soft and ductile but its strength can be increased by work-hardening. A large number of alloys are manufactured; alloying elements include copper, manganese, silicon, zinc, and magnesium. Its lightness ...

Google previewConcise Dictionary of Pharmacological Agents (2012)

Properties and Synonyms by I.K. Morton, Judith M. Hall

Aludrox" = aluminium hydroxide; magnesium carbonate; magnesium hydroxide. aluminium acetate [USAN] (aluminium ethanoate) is used topically ...

Google previewPolymer Technology Dictionary (1994)

by Tony Whelan

aluminium hydrate See aluminium hydroxide and aluminium ...

Google previewA dictionary of applied chemistry (1922)

by Sir Thomas Edward Thorpe

Pure aluminium hydroxide is incapable of directly forming a lake with alizarin — e.g. when boiled with an aqueous solution of the latter. The addition, however, of calcium salts at once effects the formation of a lake. Aluminium-alizarin lakes of ...

Google previewThe Encyclopaedia Britannica (1898)

A Dictionary of Arts, Sciences and General Literature ; New Maps and Many Original American Articles by Eminent Authors ; with New American Supplement

Aluminium hydroxide, Al2(OH)°, separates as an almost colourless gelatinous precipitate on the addition of alkalies to a solution of an aluminium salt ; it is readily soluble in acids, forming salts such as aluminium sulphate, Al2(S0')3.

Google previewChurchill Livingstone Medical Dictionary (2008)

by Chris Brooker

Amitriptyline, carbamazepine, gabapentin Aluminium hydroxide, magnesium trisilicate, simeticone, alginate 1. Mebendazole, tiabendazole 2. Ivermectin 3. Praziquantel Cyproterone acetate 1. 2. Dutasteride, finasteride (5a-reductase ...

Google previewChandler's Encyclopedia (1898)

An Epitome of Universal Knowledge ... by William Henry Chandler

Thus, when sodium hydroxide is added to a solution of an aluminium salt, aluminium hydroxide is first precipitated, but is redissolved in an excess of sodium hydroxide. The compound in solution is thought to be sodium illuminate. Al(ONa),.

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Video about Aluminium hydroxide

Aluminium hydroxide Meaning

Video shows what aluminium hydroxide means. The hydrated form of alumina, having the formula Al(OH)3; it reacts with bases to form aluminates.. aluminium ...

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