Ventron Corporation

Ramesh Subayya Hedge

Anion exchange resins containing borohydride counter ions display essentially the same chemical activity as solutions of sodium borohydride but have the added advantage that products treated therewith are not contaminated with sodium ions or borate ions. Thus, alcohols can now be freed of carbonyl components without thereby being contaminated with borate; metal ions, such as silver, can be reduced to the free element; metal ions of groups IV-A to VI-A can be converted to volatile metal hydrides; and transition metal ions can be converted to the boride. The anion exchange resin is prepared by treating a strong base anion exchanger with aqueous sodium borohydride or sodium cyanoborohydride. Regeneration of the borohydride form from the borate proceeds directly with aqueous sodium borohydride.

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Danvers, MA, United States of America

Ramesh Subayya Hedge