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US 4,064,065 AGranted
Aqueous solutions of alkali metal hydroxides
AssigneeNalco Chemical Company
InventorJames W. Stoll
Life of this patent
Estimating the term…
Abstract
An aqueous solution of alkali metal hydroxides which is composed of: A. a 50% by weight aqueous solution of sodium hydroxide, and B. a 45% by weight aqueous solution of potassium hydroxide, With the weight ratio of A to B being 2:1.
Claims1
An aqueous solution of alkali metal hydroxides comprising:
- A. a 50% by weight aqueous solution of sodium hydroxide, and
- B. a 45% by weight aqueous solution of potassium hydroxide,
- With the weight ratio of A to B being 2:1, said aqueous solution of the alkali metal hydroxides having a freezing point of about 0.degree. F.
Dependencies are inferred from the claim text.