Aqueous solutions for cleaning glass articles and methods of using such
AssigneeCorning Incorporated
InventorsYuhui Jin, Aize Li, Hamidreza Pirayesh
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Abstract
According to embodiments of the present disclosure, an aqueous solution for cleaning glass articles may include, water; at least one of hydrochloric acid, nitric acid, phosphoric acid, an organic acid, and combinations thereof; and at least one of: a positively charged surfactant, and a metal salt. The aqueous solution may include from 0.01 wt. % to 1 wt. % of the positively charged surfactant, based on the total weight of the aqueous solution. A concentration of the metal salt in the aqueous solution may be from 0.1 M to 1 M. The aqueous solution may has a pH from 0 to 4.
Claims27
An aqueous solution for cleaning glass articles, the aqueous solution comprising:
- water;
- at least one of hydrochloric acid, nitric acid, phosphoric acid, an organic acid, and combinations thereof;
- and
- at least one of:
- a positively charged surfactant, wherein the aqueous solution comprises from 0.01 wt. % to 1 wt. % of the positively charged surfactant, based on a total weight of the aqueous solution;
- and
- a metal salt, wherein a concentration of the metal salt is from 0.1 M to 1 M;
- wherein the aqueous solution has a pH from 0 to 4.
A method for cleaning a glass article, the method comprising:
- contacting the glass article with an aqueous solution to form a cleaned glass article, the aqueous solution comprising:
- water;
- at least one of hydrochloric acid, nitric acid, phosphoric acid, an organic acid, and combinations thereof;
- and
- at least one of:
- a positively charged surfactant, wherein the aqueous solution comprises from 0.01 wt. % to 1 wt. % of the positively charged surfactant, based on a total weight of the aqueous solution;
- and
- a metal salt, wherein a concentration of the metal salt is from 0.1 M to 1 M;
- wherein the aqueous solution has a pH from 0 to 4.
Dependencies are inferred from the claim text.