Kloprogge, J. T.; Frost, R. L. published an article about the compound: Aluminum(III) sulfate xhydrate( cas:17927-65-0,SMILESS:O=S(O)(O)=O.O=S(O)(O)=O.O=S(O)(O)=O.[H]O[H].[Al].[Al] ).Related Products of 17927-65-0. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:17927-65-0) through the article.
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. Upon addition of sulfate the tridecamer crystallized as the monoclinic basic Al sulfate Na0.1[AlO4Al12(OH)24(H2O)12](SO4)3.55. These crystals were studied using Raman microscopy at 300 and 77 K and compared to Na2SO4.xH2O and Al2(SO4)3.xH2O. The Raman spectrum of basic Al sulfate is dominated by 2 broad bands, which are assigned to the ν2 and ν4 SO42- triplets at 446, 459 and 496 and 572, 614 and 630 cm-1. The ν1 is observed as a single band at 990 cm-1, partly overlapped by the ν3 triplet at 979, 1009 and 1053 cm-1 of the sulfate group in the Al13 sulfate structure. Also the band at 726 cm-1 is assigned to an Al-O mode of the polymerized Al-O-Al bonds in the Al13 Keggin structure. The OH-stretching region of the basic Al sulfate was reported. The 77 K spectrum shows 3 crystal H2O bands at 3035, 3138 and 3256 cm-1 accompanied by 3 Al-H2O bands at 3354, 3418 and 3498 cm-1 and 4 Al-OH bands at 3533, 3584, 3671 and 3697 cm-1.
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Reference:
Isothiazole – Wikipedia,
Isothiazole – ScienceDirect.com