Published 1993
| Version v1
Book
Preparation and thermal studies of ammonium actinide (M4+), [M=Th, U] octafluorides
- 1. Bhabha Atomic Research Centre, Bombay (India). Radiochemistry Div.
- 2. Bhabha Atomic Research Centre, Bombay (India). Fuel Chemistry Div.
Description
Preparation and thermal studies of (NH4)4ThF8 and (NH4)4UF8 in the region 100-900 degC reveal that stabilization of single phased tetra-ammonium actinide octafluorocompound and its decomposition to lower fluorocompounds is governed by atmospheric conditions. Further, unlike in (NH4)4ThF8, the heating of (NH4)4UF8 in dry air at 400 degC resulted in formation of UO2F2 due to preferred oxidation of U4+---U6+ in (NH4)4UF8 at 80 degC leading to formation of (NH4)3UO2F5. (author). 3 refs., 2 figs., 3 tabs
Additional details
Publishing Information
- Publisher
- Indian Thermal Analysis Society.
- Imprint Place
- Bombay (India)
- Imprint Title
- Proceedings of the ninth national symposium on thermal analysis
- Imprint Pagination
- 626 p.
- Journal Page Range
- p. 375-378.
Conference
- Title
- 9. national symposium on thermal analysis.
- Dates
- 8-10 Nov 1993.
- Place
- Bambolim (India).
INIS
- Country of Publication
- India
- Country of Input or Organization
- India
- INIS RN
- 26039981
- Subject category
- S11: NUCLEAR FUEL CYCLE AND FUEL MATERIALS; S36: MATERIALS SCIENCE; S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- AIR; AMMONIUM FLUORIDES; CHEMICAL PREPARATION; DIFFERENTIAL THERMAL ANALYSIS; PHASE TRANSFORMATIONS; REACTION KINETICS; TEMPERATURE DEPENDENCE; THERMAL GRAVIMETRIC ANALYSIS; THORIUM FLUORIDES; URANIUM FLUORIDES; X-RAY DIFFRACTION
- Descriptors DEC
- ACTINIDE COMPOUNDS; AMMONIUM COMPOUNDS; AMMONIUM HALIDES; CHEMICAL ANALYSIS; COHERENT SCATTERING; DIFFRACTION; FLUIDS; FLUORIDES; FLUORINE COMPOUNDS; GASES; GRAVIMETRIC ANALYSIS; HALIDES; HALOGEN COMPOUNDS; KINETICS; QUANTITATIVE CHEMICAL ANALYSIS; SCATTERING; SYNTHESIS; THERMAL ANALYSIS; THORIUM COMPOUNDS; URANIUM COMPOUNDS