Corrosion removal composition
AssigneeGultex, Incorporated
InventorGordon B. Anderson
Life of this patent
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Abstract
A composition comprising 2 to 10% by weight of a sulfate of copper, 0.05 to 1.0% by weight of an alkali metal bichromate, 0.05 to 1.0% by weight of a surfactant, 15 to 35% by weight of phosphoric acid (based on contained phosphoric acid) and 50 to 85% by weight of water, the total of all components equaling 100% and a method for preparing and using said composition.
Claims12
A method for preparing a corrosion removing composition, said method comprising heating water to a temperature of 140.degree. to 160.degree. F, dissolving therein while agitating, a sulfate of copper and an alkali metal bichromate, adding a surfactant, allowing to cool and dispersing therein phosphoric acid, the respective amounts of each of the ingredients added being sufficient to produce a composition containing 2 to 10% by weight of a sulfate of copper, 0.05 to 1.0% by weight of an alkali metal bichromate, 0.05 to 1.0% by weight of a surfactant, 15 to 35% by weight of phosphoric acid and 50 to 85% by weight of water, the total of all components being 100%.
Dependencies are inferred from the claim text.