Product Details of 17927-65-0. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: Aluminum(III) sulfate xhydrate, is researched, Molecular Al2H8O13S3, CAS is 17927-65-0, about Raman microscopy study of basic aluminum sulfate. Author is Kloprogge, J. T.; Frost, R. L..
The tridecameric Al Keggin cluster [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 crystallized as the monoclinic basic aluminum sulfate Na0.1[AlO4Al12(OH)24(H2O)12](SO4)3.55. These crystals were studied using FT-Raman microscopy and compared to basic aluminum nitrate, Na2SO4.xH2O and Al2(SO4)3.xH2O. The Raman spectrum of basic aluminum sulfate is dominated by two broad bands which are assigned to the ν1 and ν3 bands at 981 and 1051 cm-1 of the sulfate group in the Al13 sulfate structure. Also the band at 724 cm-1 is assigned to an Al-O mode of the polymerized Al-O-Al bonds in the Al13 Keggin structure. The sharp band at 1066 cm-1 and the minor band at 1384 cm-1 are interpreted as a small amount of nitrate impurity on a different position in the structure than the nitrate present in the Al13 nitrate crystal structure, based on the shift in band position of both the ν1 sym. stretching and ν3 asym. stretching modes.
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Reference:
Isothiazole – Wikipedia,
Isothiazole – ScienceDirect.com