CRYSTAL-CHEMICAL STUDIES OF RARE EARTH FLUORIDES (in Russian)
Journal Article
·
· Izv. Sibirsk. Otd. Akad. Nauk SSSR
OSTI ID:4077583
X-ray and optical analyses were made at various temperatures of ammonium lanthanide fluorides, and their composition was determined. A comparison of the crystal and chemical properties of the rare earth trifluorides prepared by decomposition of the mixed fluorides at 600 deg with the properties of the products treated at high temperatures showed that heating affected the optical properties of rare earth fluorides. Moreover, an increased temperature induced and amplified the optical anisotropy and variations of the absorption band intensity in the infrared region. Densities and refractive indices for rare earth and yttrium fluorides are tabulated. (tr-auth)
- Research Organization:
- Inst. of Inorganic Chemistry, Siberian Branch, Academy of Sciences, Novosibirsk
- NSA Number:
- NSA-18-016013
- OSTI ID:
- 4077583
- Journal Information:
- Izv. Sibirsk. Otd. Akad. Nauk SSSR, Journal Name: Izv. Sibirsk. Otd. Akad. Nauk SSSR Vol. Vol: No. 3
- Country of Publication:
- Country unknown/Code not available
- Language:
- Russian
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Related Subjects
ABSORPTION
ANISOTROPY
CERIUM FLUORIDES
CHEMICAL REACTIONS
CHEMISTRY
DECOMPOSITION
DENSITY
DIAGRAMS
DIFFRACTION
DYSPROSIUM FLUORIDES
ERBIUM FLUORIDES
EUROPIUM FLUORIDES
FLUORIDES
GADOLINIUM FLUORIDES
HEAT TREATMENTS
HIGH TEMPERATURE
HOLMIUM FLUORIDES
INFRARED RADIATION
LANTHANUM FLUORIDES
LUTETIUM FLUORIDES
MEASURED VALUES
MIXING
NEODYMIUM FLUORIDES
OPTICAL SYSTEMS
PHOTOMETRY
PRASEODYMIUM FLUORIDES
PREPARATION
PROMETHIUM FLUORIDES
PYROLYSIS
RARE EARTHS
REFRACTION
SAMARIUM FLUORIDES
SPECTRA
SPECTROSCOPY
TERBIUM FLUORIDES
THULIUM FLUORIDES
X RADIATION
YTTERBIUM FLUORIDES
YTTRIUM FLUORIDES
ANISOTROPY
CERIUM FLUORIDES
CHEMICAL REACTIONS
CHEMISTRY
DECOMPOSITION
DENSITY
DIAGRAMS
DIFFRACTION
DYSPROSIUM FLUORIDES
ERBIUM FLUORIDES
EUROPIUM FLUORIDES
FLUORIDES
GADOLINIUM FLUORIDES
HEAT TREATMENTS
HIGH TEMPERATURE
HOLMIUM FLUORIDES
INFRARED RADIATION
LANTHANUM FLUORIDES
LUTETIUM FLUORIDES
MEASURED VALUES
MIXING
NEODYMIUM FLUORIDES
OPTICAL SYSTEMS
PHOTOMETRY
PRASEODYMIUM FLUORIDES
PREPARATION
PROMETHIUM FLUORIDES
PYROLYSIS
RARE EARTHS
REFRACTION
SAMARIUM FLUORIDES
SPECTRA
SPECTROSCOPY
TERBIUM FLUORIDES
THULIUM FLUORIDES
X RADIATION
YTTERBIUM FLUORIDES
YTTRIUM FLUORIDES