Stable colloidal dispersions of rare earth compounds

Details Stable colloidal dispersions of rare earth compounds Stable colloidal dispersions of rare earth compounds

1993-05-03

1998-02-10

Lovering, Richard D.

Compositions

Preservative agents

Anti-corrosion

252314, 502304, 423 211, 423263, 534 16, B01N 1300, C01F 1700

Patent

active

057165475

ABSTRACT:
Stable colloidal dispersions, in water, of rare earth compounds, e.g., yttric rare earth compounds, are produced by (a) reacting, in an aqueous reaction medium, a rare earth oxide with a controlled effective amount of a monovalent water-soluble acid having a pK.sub.a of from 2.5 to 5.0, and then (b) heating the resulting medium of reaction.

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Chemical Abstracts, vol. 108, Apr. 25, 1988 No. 149920f.

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