Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: Aluminum(III) sulfate xhydrate, is researched, Molecular Al2H8O13S3, CAS is 17927-65-0, about Concentration of nitric acid by crystallization of hydrates.Recommanded Product: 17927-65-0.
The concentration of dilute HNO3 solutions by crystallization of hydrates of K, Na, Ca, Mg, Fe, and Al sulfates was studied. Pos. results were obtained only with Al2(SO4)3. Anhydrous Al2(SO4)3 was added to 40-60% HNO3 solution at 90-5°. Cooling to 25-30° precipitated Al2(SO4)3-hydrate from which HNO3 was separated by filtration or distillation at 100-50 mm pressure to give 73.5-5.8% HNO3 solution The yield was 93.5-4.8%.
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Reference:
Isothiazole – Wikipedia,
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