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Preparation of Beryllium Fluoride Glasses Containing Xenon(VI) and/or Thallium (I)
Author(s) -
RIEBLING E. F.,
BLASZYK P. E.,
SMITH D. W.
Publication year - 1970
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1970.tb11993.x
Subject(s) - solubility , dissolution , alkali metal , fluoride , melting point , softening point , chemistry , inorganic chemistry , ionic bonding , xenon , ion , thallium , xenon difluoride , halide , beryllium , organic chemistry , polymer chemistry
The dissolution of CsXeF 7 in molten alkali fluoroberyllate glasses between 250° and 500°C is described. The apparent small solubility of Xe(VI) in these ionic glass‐forming melts (about 1 to 2 wt% or less) may be related to retention of a molecular configuration by XeF 6 that is caused by its strong fluoride ion donor properties and/or to the nonmelting behavior of numerous MF‐XeF 6 salts when they are heated. Rather low‐softening (about 100°C) glasses were also prepared in the TIHF 2 ‐NaHF 2 ‐BeF 2 system, whereas TlHF 2 has a relatively low melting point (about 85°C). Contrary to expectations, Xe(VI) appears to oxidize TI + in these molten glass environments at 250°C.