Cerium citrate, method of making and corrosion inhibitor comprising cerium citrate
AssigneeUnited Technologies Corporation
InventorsZhongfen Ding, Georgios S. Zafiris, Bart Antonie van Hassel, Catalin G. Fotache
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Abstract
A method of making cerium citrate includes combining cerium carbonate and citric acid to produce cerium citrate and carbon dioxide. The cerium citrate is substantially free of negative ions other than citrate. The cerium citrate can be used in a corrosion inhibitor composition.
Claims12
1-9. (canceled)
A cerium citrate produced by combining cerium carbonate and citric acid to produce cerium citrate and carbon dioxide, wherein the cerium citrate is substantially free of negative ions other than citrate.
A corrosion inhibitor composition comprising a cerium citrate substantially free of negative ions other than citrate.
An article comprising:
- a metal substrate;
- and
- a corrosion inhibitor disposed on the substrate, wherein the corrosion inhibitor comprises a cerium citrate substantially free of negative ions other than citrate.
Dependencies are inferred from the claim text.