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Title: Seventh Topical Report on The Reactions of Borohydrides and Aluminohydrides with Wolfram (VI) Halides and Eighth Topical Report on Preparation and Properties of Thorium Borohydride

Technical Report ·
DOI:https://doi.org/10.2172/12732297· OSTI ID:12732297

(1) A comprehensive investigation of methods for the preparation of hydrides of wolfram has been made. A wolfram (IV) hydride-aluminum hydride mixture has been prepared and its N{sub H} and thermal stability determined for its evaluation as a nuclear radiation shield material. Aluminum borohydride has been shown to reduce wolfram (VI) chloride to a subchloride. The alkali borohydrides also reduce hexavalent wolfram, but in no case has a wolfram borohydride been isolated. (2) An investigation of the chemical and physical properties of thorium borohydride, which pertain to its use as alow-temperature nuclear radiatin shield, is presented. Values are taken from the literature when available and are supplemented where necessary by our experimental investigation.

Research Organization:
TIC (Technical Information Center, U.S. Department of Energy)
Sponsoring Organization:
US Atomic Energy Commission (AEC)
OSTI ID:
12732297
Report Number(s):
NEPA-1654
Country of Publication:
United States
Language:
English