Thermal stability of basic aluminum sulfate

@article{Kloprogge1992ThermalSO,
  title={Thermal stability of basic aluminum sulfate},
  author={J. T. Kloprogge and J. Geus and J. Jansen and D. Seykens},
  journal={Thermochimica Acta},
  year={1992},
  volume={209},
  pages={265-276}
}
The tridecameric aluminum polymer [AlO4Al12(OH)24(H2O)12]7+ is prepared by forced hydrolysis of an Al(NO3)3 solution by NaOH up to an OH:Al mol ratio of 2.2. Upon addition of sulfate the tridecamer crystallizes into macroscopic crystallites of the basic aluminum sulfate Na0.1[Al13O4(OH)24(H2O)12](SO4)3.55, which is characterized structurally by means of X-ray diffraction, 27Al solid-state magic angle spinning NMR, IR and chemically by inductively coupled plasma atomic emission Spectroscopy. The… Expand
The dehydroxylation of basic aluminum sulfate: An infrared emission spectroscopic study
Abstract The tridecameric aluminum polymer [AlO 4 Al 12 (OH) 24 (H 2 O) 12 ] 7+ was prepared by forced hydrolysis of Al 3+ up to an OH/Al molar ratio of 2.2. Upon addition of sulfate, the tridecamerExpand
Raman microscopy study of basic aluminum sulfate
The tridecameric aluminum polymer [AlO4Al12(OH)24(H2O)12]7+ was prepared by forced hydrolysis of Al3+ up to an OH/Al molar ratio of 2.2. Upon addition of sulfate the tridecamer crystallised as theExpand
Near-infrared spectroscopic study of basic aluminum sulfate and nitrate
The tridecameric Al-polymer [AlO4Al12(OH)24(H2O)12]7+ was prepared by forced hydrolysis of Al3+ up to an OH/Al molar ratio of 2.2. Under slow evaporation crystals were formed of Al13-nitrate. UponExpand
Raman microscopy study of basic aluminum sulfate Part II Raman microscopy at 77 K
The tridecameric aluminum polymer [AlO4Al12(OH)24(H2O)12]7+ was prepared by forced hydrolysis of Al3+ up to an OH/Al molar ratio of 2.2. Upon addition of sulfate the tridecamer crystallised as theExpand
Formation of crystalline sulfates from Al13 polymer solutions: effect of washing on the transformation of type I to type II crystals
The formation of the Al13 tridecamer, AlO4Al12(OH)24(H2O)127+, from 0.25 mol dm–3 Al3+ aqueous solutions progressively neutralized by 0.25 mol dm–3 NaOH aqueous solution at 80 °C was followed by 27AlExpand
Crystal structure, thermal decomposition mechanism and catalytic performance of hexaaquaaluminum methanesulfonate
Abstract Hexaaquaaluminum methanesulfonate crystals, [Al(H2O)6][CH3SO3]3 were synthesized by a hydrothermal reaction of Al(OH)3 with methanesulfonic acid. Single-crystal diffraction determinationExpand
Early stage in situ detection of polynuclear aluminum phases in aqueous solution
Abstract Polynuclear cationic aluminum hydroxide phases are known intermediates in the formation of aluminum oxides or (oxide)hydroxides upon hydrolysis of aluminum salt solutions. In the presence ofExpand
Raman and infrared spectroscopic investigation of the neutralisation of aluminium in the presence of monomeric orthosilicic acid
Abstract The tridecameric aluminium polymer [AlO 4 Al 12 (OH) 23 (H 2 O) 12 ] 7+ -O-Si(OH) 3 was prepared by forced hydrolysis of Al 3+ up to an OH/Al molar ratio of 2.0 in the presence of monomericExpand
Near-infrared spectroscopic study of [AlO4Al12(OH)23(H2O)12]7+-O-Si(OH)3 nitrate crystals formed by forced hydrolysis of Al3+ in the presence of TEOS.
The polymer [AlO4Al12(OH)23(H2O)12]7+-O-Si(OH)3 was prepared by forced hydrolysis of Al3+ up to an OH/Al molar ratio of 2.0 in the presence of monomeric orthosilicic acid. Crystalline material wasExpand
Synthesis and characterization of Al-pillared montmorillonite in presence of Mn(II)
Abstract The possibility of substituting aluminum in the Keggin tridecamer [Al 13 O 4 (OH) 24 (H 2 O) 12 ] 7+ by Mn(II) has been investigated and then the obtained polycation has been used as pillarsExpand
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