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.
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Patent•
12 Mar 2003
TL;DR: In this paper, a process for preparing nanofibres of aluminium oxide includes such steps as mixing surfactant with aluminium hydroxide, hydrothermal treaitng at 293-573 deg.K for 5-80 hr, and firing at 473-1573 deg.k for 1-40 hr.
Abstract: A process for preparing nanofibres of aluminium oxide includes such steps as mixing surfactant with aluminium hydroxide, hydrothermal treaitng at 293-573 deg.K for 5-80 hr, and firing at 473-1573 deg.K for 1-40 hr. Its product has high specific surface area (more than 350 sq.m/g).
10 citations
TL;DR: In this article, small-angle X-ray scattering (SAXS) measurements made at various stages of the aging process showed that, in addition to fractal aggregation, there is a second process active in the solutions that leads to the break up of the fractal structure and formation of nonfractal particles, which are probably Al13 ions, [AlO4Al12Al12(OH)24(OH2)12]7+.
Abstract: Aluminium hydroxide particles, created by hydrolysis of aluminium nitrate solutions with sodium carbonate, aggregate rapidly to form mass fractal structures for which the fractal dimension varies from 1.7 to 2.1 depending on the OH/Al-ion ratio of the solution. This system has been studied by small-angle X-ray scattering (SAXS). The OH/Al ratios for the solutions were 1.5, 2.0 and 2.15. The maximum radius of gyration of the aggregates of about 50 A is found in the solutions having the highest OH/Al ratio. SAXS measurements made at various stages of the aging process show that, in addition to fractal aggregation, there is a second process active in the solutions that leads to the break up of the fractal structure and formation of nonfractal particles, which are probably Al13 ions, [AlO4Al12(OH)24(OH2)12]7+. This process, which is strongly temperature dependent, is governed by an activation energy of approximately 162 kJ mol−1.
10 citations
TL;DR: The patient was diagnosed with cutaneous B-cell pseudolymphoma due to aluminium hydroxide as a result of immunotherapy, and deposits of inorganic aluminium in the granular histiocytes among the germinal centers were revealed.
10 citations
TL;DR: In this article, an acid alumino-silica complex is formed in neutral and alkaline suspensions, pH > 4-5, aluminium hydroxide precipitates on the outer surface of the silica particles and in the course of time may migrate through the pores of the particles.
Abstract: Adsorption phenomena of AlCl3 on silica in aqueous suspensions have been studied by means of micro-electrophoresis and titration techniques.
In neutral and alkaline suspensions, pH > 4-5, aluminium hydroxide precipitates on the outer surface of the silica particles and in the course of time may migrate through the pores of the particles. The rate, of migration is highest in alkaline solution.
Evidence is presented that an acid alumino-silica complex is formed.
10 citations
TL;DR: Mechanistically, the aluminium hydroxide was found to facilitate the detachment of IMC particles from the carrier surface, forming a complex interactive mixture that more readily deagglomerated than the cohesive drug agglomerates.
10 citations