Structure investigations on zirconium phosphate preparates by means of DTA, ETA, and TG
Creators
- 1. Technische Univ. Muenchen (Germany, F.R.). Inst. fuer Radiochemie
Description
The simultanous DTA, ETA and TG inorganic ion exchanger based on zirconium phosphate enables the clear interpretation of the effects occuring. In particular it can be seen that the fast transition in amorphous preparates at high temperature of a badly defined form of pyrophosphate into the cubic crystalline substances, however a measurable energy release by means of DTA is not observed due to the slight mobility of the atoms in the crystal lattice. This effect on the other hand may be seen using ETA. In addition, an exothermal reaction occuring in some preparates, especially in cation charged ones, was traced back to the forming of part-crystalline structures which could be especially fast and sensitively characterized using DTA. (orig.)
Availability note (English)
MF available from INIS under the Report Number.Abstract (German)
Die simultane DTA, ETA und TG anorganischer Ionenaustauscher auf der Basis von Zirkonphosphat erlaubt die eindeutige Interpretation der auftretenden Effekte. Insbesondere erweist es sich, dass der bei amorphen Praeparation bei hoher Temperatur rasch verlaufende Uebergang einer schlecht definierten Form des Pyrophosphats in die kubisch kristalline Modifikation bei kristallinen Substanzen zwar ebenfalls stattfindet, eine mittels DTA messbare Energiefreisetzung jedoch infolge der geringeren Beweglichkeit der Atome im Kristallgitter nicht beobachtet wird. Dieser Effekt ist dagegen mittels ETA zu verfolgen. Daneben wurde eine bei manchen, insbesondere den kationenbeladenen Praeparaten auftretende exotherme Reaktion auf die Ausbildung von teilkristallinen Strukturen zurueckgefuehrt, die mittels DTA besonders schnell und emfindlich charakterisiert werden koennen. (orig.)
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Additional details
Additional titles
- Original title (German)
- Strukturuntersuchungen an Zirkonphosphat-Praeparaten mittels DTA, ETA und TG
Publishing Information
- Imprint Pagination
- 11 p.
- Report number
- AED-Conf--76-363-001
Conference
- Title
- Scientific meeting of the Gesellschaft fuer Thermische Analyse e.V.
- Dates
- 5 Jul 1976.
- Place
- Konstanz, Germany, F.R.
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 8285922
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- AMORPHOUS STATE; CRYSTAL LATTICES; DIAGRAMS; DIFFERENTIAL THERMAL ANALYSIS; DOPED MATERIALS; EMANATION THERMAL ANALYSIS; INORGANIC ION EXCHANGERS; RADIOACTIVITY; RADON; STRUCTURAL CHEMICAL ANALYSIS; THERMAL GRAVIMETRIC ANALYSIS; THORIUM NITRATES; THORIUM 228; X-RAY DIFFRACTION; ZIRCONIUM PHOSPHATES
- Descriptors DEC
- ACTINIDE COMPOUNDS; ACTINIDE NUCLEI; ALPHA DECAY RADIOISOTOPES; CHEMICAL ANALYSIS; COHERENT SCATTERING; CRYSTAL STRUCTURE; DESTRUCTIVE ANALYSIS; DIFFRACTION; ELEMENTS; EMANATION METHOD; EVEN-EVEN NUCLEI; GRAVIMETRIC ANALYSIS; HEAVY NUCLEI; ION EXCHANGE MATERIALS; ISOTOPES; NITRATES; NITROGEN COMPOUNDS; NONMETALS; NUCLEI; OXYGEN COMPOUNDS; PHOSPHATES; PHOSPHORUS COMPOUNDS; QUANTITATIVE CHEMICAL ANALYSIS; RADIOISOTOPES; RARE GASES; SCATTERING; THERMAL ANALYSIS; THORIUM COMPOUNDS; THORIUM ISOTOPES; TRANSITION ELEMENT COMPOUNDS; YEARS LIVING RADIOISOTOPES; ZIRCONIUM COMPOUNDS
Optional Information
- Notes
- 5 figs.; 14 refs.