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US 7,641,879 B2Granted
Methods of synthesis of isotopically enriched borohydride and methods of synthesis of isotopically enriched boranes
AssigneeSemEquip, Inc.
InventorsBernard Spielvogel, Kevin Cook
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Abstract
The invention provides new methods for the synthesis of isotopically enriched metal borohydrides, metal tetrahydroundecaborate salts, and decaborane from isotopically enriched 10B-boric acid or 11B-boric acid. The invention is particularly useful for synthesis of isotopically enriched sodium or lithium borohydride, MB11H14 (where M is Li, Na, K, or alkylammonium), and decaborane.
Claims22
A method of synthesizing an isotopically enriched metal borohydride, the method comprising the steps of:
- (a) providing isotopically enriched boric acid;
- (b) contacting the isotopically enriched boric acid with an alcohol under conditions conducive to formation of an isotopically enriched borate;
- and
- (c) reducing the isotopically enriched borate with a metal aluminum hydride under conditions conducive to formation of isotopically enriched metal borohydride.
1 more element
Dependencies are inferred from the claim text.