Topic
Aluminium hydroxide
About: Aluminium hydroxide is a research topic. Over the lifetime, 2043 publications have been published within this topic receiving 22032 citations. The topic is also known as: Al(OH)3 & Amphojel.
Papers published on a yearly basis
Papers
More filters
Patent•
31 Jan 2007
TL;DR: In this article, a method of high-purity aluminium oxide powder body preparation is described, which is characterized by that it adopts aluminium sheet whose purity is 99.9999% and organic alkal; and makes them mutually reacted in hot water bath to obtain the precipitate of aluminium hydroxide.
Abstract: The present invention relates to a preparation method of high-purity aluminium oxide powder body. It is characterized by that it adopts aluminium sheet whose purity is 99.9999% and organic alkal; and makes them be mutually reacted in hot water bath to obtain the precipitate of aluminium hydroxide, then the precipitate is calcined at 1100-1200deg.C and ground so as to obtain high-purity ultrafine aluminium oxide powder body. The described organic alkal; includes any one of choline, hexamethohydrotetramine and dopamine.
11 citations
Patent•
13 Oct 2004
TL;DR: In this paper, an accelerating admixture for hydraulic binders was proposed, consisting of reaction products of an alkali metal inorganic substance reacting with a mixture of a carboxylic and/or a hydrohalogenic acid.
Abstract: This invention discloses an accelerating admixture for hydraulic binders comprising of: a) the reaction products of an alkali metal inorganic substance reacting with a mixture of a carboxylic and/or a hydrohalogenic acid; b) aluminium sulfate; c) a manganese salt; d) amorphous aluminium hydroxide; and optionally containing: e) a lithium salt; and/or an amino acid or an amino acid aluminium salt or a mixture of aluminium sulfate with an amino acid.
11 citations
TL;DR: The neutralizing capacity of antacids is not predictable from their reactivity in aqueous solution and is markedly reduced by protein‐containing foods.
Abstract: In order to estimate their in-vivo reactivity two antacids of equal theoretical neutralizing capacity (approximately 3.9 mol/l at pH 3.5) but of different chemical composition were employed as intragastric titrant (pH 3.5) following a liquid protein meal (oxo) in two groups of five volunteers each. The two antacids chosen (alucol and Camalox) contain different amounts of aluminium hydroxide, magnesium hydroxide and Camalox in addition contains calcium carbonate. The intragastric consumption of these two antacids was much higher than their respective theoretically available neutralizing capacity (Alucol 3.9 times, Camalox 2.4 times). In-vitro studies demonstrated that interaction with oxo reduced the neutralizing capacity of the two antacids at pH 3.5 from 3.9 mol/l to 1.7 mol/l (Alucol) and 2.5 mol/l (Camalox). This potency loss was related to the aluminium hydroxide content of the two antacids. This study indicates that the neutralizing capacity of antacids is not predictable from their reactivity in aqueous solution and is markedly reduced by protein-containing foods.
11 citations
TL;DR: Dimeric aluminium hydroxide complexes containing the (R,R)-N,N'-bis(2'-hydroxy-3'-organobenzyl)-trans-1,2-diaminocyclohexane ligand backbone effect catalysis of the phospho-aldol reaction under ambient, aerobic conditions at catalyst loadings of 0.5 mol% to afford enantioselectivities of ca. 65%.
Abstract: Dimeric aluminium hydroxide complexes containing the (R,R)-N,N′-bis(2′-hydroxy-3′-organobenzyl)-trans-1,2-diaminocyclohexane ligand backbone effect catalysis of the phospho-aldol reaction under ambient, aerobic conditions at catalyst loadings of 05 mol% to afford enantioselectivities of ca 65%
11 citations
TL;DR: In this paper, the reactivity of 0.5 M NaCl aqueous solution of NiAl(100) surfaces covered by ultra-thin aluminium oxide films grown by thermal oxidation of the alloy at 900 °C was investigated.
Abstract: We report a XPS study of the reactivity in 0.5 M NaCl aqueous solution of NiAl(100) surfaces covered by ultra-thin aluminium oxide films grown by thermal oxidation of the alloy at 900 °C. Detailed analysis of the film thickness, the oxide stoichiometry and the alloy composition below the oxide was performed to characterize the drastic modifications induced by chloride exposure. Chloride entry in the oxide was observed by AR-XPS that revealed the existence of two chemical states of chlorides, one associated to aluminium oxide, the other one to aluminium hydroxide. The film modifications were initiated in the inner part and characterized by the formation of chloride-containing hydroxide species. The growth of these species spread later to the entire film, accompanied by a marked thickening of the modified alumina layer by selective oxidation of the alloy. Longer immersion times (>20 h) led to the formation of mixed nickel-aluminium chloride-containing hydroxide species, indicating the loss of corrosion protection.
11 citations