Basic nitrite sodalite-Na sub 8 (AlSiO sub 4 ) sub 6 (OHter dot H sub 2 O)(NO sub 2 )-a suitable material for the uptake of carbon dioxide

Journal Article · Sun Sep 01 00:00:00 EDT 1991 · Journal of Solid State Chemistry; (United States)

DOI:https://doi.org/10.1016/0022-4596(91)90216-5· OSTI ID:7039045

Buhl, J C ^[1]

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1. Univ. Muenster (Germany)

The solid solution series basic sodalite-nitrite sodalite Na{sub 8}(AlSiO{sub 4}){sub 6}(OH{center dot}H{sub 2}O){sub 2-x}(NO{sub 2}){sub x} has been synthesized under hydrothermal conditions at 47- K (autogenous pressure). The observed composition range 0{le}x{le}2 could be varied by using different amounts of sodium nitrite in the starting reaction mixture. Besides the crystal data and the thermoanalytical properties of this new material its sorption capacity for carbon dioxide has been investigated. At elevated temperatures (970 K) an intracage reaction of the enclathrated sodium hydroxide with carbon dioxide could be estimated, yielding to an uptake of 25 mg CO{sub 2} per gram sodalite, whereas no CO{sub 2} absorption could be estimated at room temperature. The reaction mechanism involves the partial destruction of the NaOH{center dot}H{sub 2}O complex followed by the formation of Na{sub 2}CO{sub 3} within the sodalite cages, as demonstrated by X-ray powder diffraction, IR spectroscopy, and thermoanalytical results.

• OSTI ID: 7039045
• Journal Information: Journal of Solid State Chemistry; (United States), Journal Name: Journal of Solid State Chemistry; (United States) Vol. 94:1; ISSN 0022-4596; ISSN JSSCB
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ABSORPTION SPECTROSCOPY
ALKALI METAL COMPOUNDS
ALUMINIUM COMPOUNDS
ALUMINIUM HYDROXIDES
ALUMINIUM SILICATES
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL PREPARATION
CHEMICAL REACTIONS
COHERENT SCATTERING
CRYSTAL STRUCTURE
DATA
DIFFRACTION
DISPERSIONS
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
HYDROGEN COMPOUNDS
HYDROXIDES
INFORMATION
INFRARED SPECTRA
ISOTOPES
LIGHT NUCLEI
MAGNETIC RESONANCE
MIXTURES
NITRITES
NITROGEN COMPOUNDS
NUCLEAR MAGNETIC RESONANCE
NUCLEI
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RESONANCE
SCATTERING
SILICATES
SILICON 29
SILICON COMPOUNDS
SILICON ISOTOPES
SODIUM COMPOUNDS
SOLID SOLUTIONS
SOLUTIONS
SORPTION
SORPTIVE PROPERTIES
SPECTRA
SPECTROSCOPY
STABLE ISOTOPES
STOICHIOMETRY
SURFACE PROPERTIES
SYNTHESIS
TEMPERATURE EFFECTS
TEMPERATURE RANGE
TEMPERATURE RANGE 0400-1000 K
TEMPERATURE RANGE 1000-4000 K
THERMODYNAMIC PROPERTIES
X-RAY DIFFRACTION