Metal cleaning and de-icing compositions
AssigneeThe Associated Octel Company Limited
InventorsJohn A. MacMillan, Mark L. Brewer, Andrew C. Duncan
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Abstract
A metal cleaning composition comprising EDDS is described. Preferably, the compositions comprise optical isomers of EDDS, such as (s,s)EDDS. The compositions are particularly well suited for cleaning iron, zinc, aluminum, and copper. De-icer compositions comprising EDDS are also described. Also disclosed are processes for using the compositions.
Claims18
A metal cleaning composition comprising as an active agent optically active EDDS.
A process of using EDDS as a low-corrosive cleaning agent in a metal cleaning composition, said process comprising the steps of:
- applying a metal cleaning composition comprising optically active EDDS to a surface.
A process for cleaning an aluminum surface by removing unwanted metal deposits thereon without substantially destroying the aluminum surface, said process comprising:
- exposing said aluminum surface to optically active EDDS.
A de-icer composition comprising optically active EDDS.
A process for cleaning metal comprising:
- providing a metal cleaning composition comprising optically active EDDS;
- and
- contacting said metal with said metal cleaning composition.
Dependencies are inferred from the claim text.