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The Composition and Properties of the Solid Produced by Reaction of Thorium with Hydrochloric Acid

Journal Article · · Inorganic Chemistry (U.S.)
DOI:https://doi.org/10.1021/ic50004a016· OSTI ID:4779524
The solid produced by reaction of thorium metal with hot 12 N HCl has a composition ThO/sub 1.3/Cl/sub 0.7/H/sub 1.3/. Upon heating at below 300 deg , hydrogen is evolved, apparently reversibly, with a heat of activation of 2.3 kcal per mole of H/sub 2/. At higher temperatures, hydrogen is evolved with a heat of activation of about 25 kcal. Heating to 800 deg produces sublimed thorium tetrachloride and a residue of thorium dioxide and thorium metal, The principal initial reaction product probably is a thorium(IV)-oxide-hydride-hydroxide- chloride mixed crystal that evolves hydrogen slowly by an internal reaction H/sup -/ + OH/sup -/ = O/sup -2/ + H/sub 2/. (auth)
Research Organization:
Univ. of California, Livermore and Berkeley
NSA Number:
NSA-17-002970
OSTI ID:
4779524
Journal Information:
Inorganic Chemistry (U.S.), Journal Name: Inorganic Chemistry (U.S.) Vol. Vol: 1; ISSN INOCA
Country of Publication:
Country unknown/Code not available
Language:
English