Detail of "18039-69-5"

CAS Number:
18039-69-5
Name:
Uranium,dioxobis(2,4-pentanedionato-kO2,kO4)-, (OC-6-11)-
Molecular Structure:
Formula:
C10H14 O6 U
Molecular Weight:
468.2435
Synonyms:
Uranium,dioxobis(2,4-pentanedionato)- (6CI,7CI,8CI); Uranium,dioxobis(2,4-pentanedionato-O,O')-, (OC-6-11)-; Uranium,dioxobis(2,4-pentanedionato-kO,kO')-, (OC-6-11)- (9CI);Bis(acetylacetonato)dioxouranium; Bis(acetylacetonato)uranyl;Dioxobis(acetoacetonato)uranium; Uranyl acetylacetonate; Uranylbis(acetylacetonate)
Density:
g/cm³
Boiling Point:
187.6 °C at 760 mmHg
Flash Point:
71.9 °C

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Effect of frequency variation on the dielectric permittivity of an epoxy-anhydride resin system containing various metal acetylacetonate accelerators: Effect of frequency variation on the dielectric permittivity of an epoxy-anhydride resin system containing various metal acetylacetonate accelerators. Smith, J. D. B.; Kauffman, R. N. (Westinghouse R and D Cent., Pittsburgh, PA, USA). IEEE Trans. Electr. Insul., EI-19(1), 33-9 (English) 1984. CODEN: IETIAX. ISSN: 0018-9367. DOCUMENT TYPE: Journal CA Section: 37 (Plastics Manufacture and Processing) Section cross-reference(s): 76 The effect of small amts. of metal ion dopants on the dielec. permittivity (i.e., dielec. const. and dissipation factor) of an anhydride-cured epoxy resin was investigated. The evaluation was carried out using 10 different metal acetylacetonate additives; the permittivity of the cured resin was measured from 25 to 150° at 60 to 105 Hz. 14024-48-7 and 18039-69-5 are also in the experiment. Although the trends obsd. with the dielec. const. (i.e., with increasing frequency and temp.) were close to what was expected, the changes in dissipation factor showed some interesting features. Interaction effects between the epoxy-anhydride polymer chain segments and the metal ion by-products derived from the thermal dissocn. of metal acetylacetonates were mainly responsible for the obsd. effects. .