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ChemInform Abstract: Cr6+-Containing Phases in the System CaO—Al2O3—CrO42-—H2O at 23 °C.

✍ Scribed by Herbert Poellman; Stephan Auer

Publisher
John Wiley and Sons
Year
2012
Weight
20 KB
Volume
43
Category
Article
ISSN
0931-7597

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✦ Synopsis

The new phases 3CaO•Al2O3•1/2CaCrO4•1/2Ca(OH)2•nH2O, 3CaO•Al2O3•CaCrO4•nH2O, and 3CaO•Al2O3•1/6CaCrO4•5/6Ca(OH)2•nH2O are identified in the title system. They are characterized by XRD and thermoanalytic measurements. These lamellar phases have various discrete water contents depending on the type of anion, composition, temperature, and relative humidity. They can be used as a potential sink for chromate from solutions. -(POELLMAN*, H.; AUER, S.; J.

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