Stability of chromium(V) doped target materials containing borane-ammonia and amines. Summary

Conference · Wed Aug 07 04:00:00 EDT 1985

OSTI ID:6118994

Krumpolc, M; Hill, D

Stability of the EHBA-Cr(V) complex (sodium bis(2-ethyl-2-hydroxybutanoato-(2-))oxochromate(V)) in methylamine, ethylamine, propylamine, sec-butylamine and ammonia in the presence of borane-ammonia, BH/sub 3/:NH/sub 3/ (0 to 20% w/w) has been followed spectrophotometrically between -30/sup 0/ to -65/sup 0/C. It has been observed that even a small amount of BH/sub 3/:NH/sub 3/ (<5% wt) can substantially retard chromium(V) disproportionation (decomposition) into chromium(VI) and chromium(III), and thus enable preparation of chromium(V) doped glasses (targets) within practical temperature (-45/sup 0/ to -50/sup 0/C) and time (30 to 60 min) limits. 4 references, 2 figures, 1 table.

• Research Organization: Illinois Univ., Chicago (USA); Argonne National Lab., IL (USA)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6118994
• Report Number(s): CONF-8409134-3-Summ.; ON: DE85006217
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical &amp; Physicochemical Properties
400301 -- Organic Chemistry-- Chemical &amp; Physicochemical Properties-- (-1987)
AMINES
AMMONIA
BORANES
BORON COMPOUNDS
CHROMIUM COMPLEXES
COMPLEXES
DOPED MATERIALS
HYDRIDES
HYDROGEN COMPOUNDS
MATERIALS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
ORGANIC COMPOUNDS
SOLVENT PROPERTIES
STABILITY
TRANSITION ELEMENT COMPLEXES