Solubilization of boric acid

Details Solubilization of boric acid Solubilization of boric acid

1995-04-11

1997-03-25

Nazario-Gonzalez, Porfirio

Organic compounds -- part of the class 532-570 series

Organic compounds

Heavy metal containing

71 641, 556 8, 556133, 556134, 556148, 556149, C07F 1900, C07F 502, C07F 108

Patent

active

056146531

ABSTRACT:
The present invention is directed to methods for solubilizing boric acid to produce liquid, boron-containing solutions. In these methods, boric acid is added to a previously formed solution of a metal ion and ligand. The ligand must be capable of both complexing the metal ion and simultaneously coordinating or hydrogen bonding with the boric acid. Preferred metal ions are the transition metals. Preferred ligands are the alkanolamines, polyamines, dialkylaminoalkylamines and alkyldiaminecarboxylic acids and salts thereof. Using the methods of the present invention, stable, clear solutions, preferrably aqueous solutions, containing about 9-11 percent-by-weight or more boron are readily prepared.

REFERENCES:
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patent: 3186946 (1965-06-01), Sluhan
patent: 4007029 (1977-02-01), Kenton
patent: 4155739 (1979-05-01), Downer et al.
patent: 4332609 (1982-06-01), Ott
patent: 4461721 (1984-07-01), Goettsche et al.
patent: 4572733 (1986-02-01), Howard
patent: 4844725 (1989-07-01), Malouf et al.

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