Patent ID: 11964178
Assignee: CARRIER CORPORATION
Field: Machine tools (Mechanical engineering)
Classification: CPC A | IPC A

Claim 0:
1. A method of making a fire extinguishing composition comprising:
forming a first aqueous solution of potassium acetate, potassium formate, or a combination thereof;
forming a second aqueous solution comprising a biocide, a bio-surfactant and an optional corrosion inhibitor;
combining the first aqueous solution with the second aqueous solution to form a third aqueous solution and mixing until the third aqueous solution is transparent;
adding a chelating agent to the transparent third aqueous solution and mixing to form a transparent fourth aqueous solution,
wherein the biocide is present in an amount of 1 to 5 wt %, based on a weight of the fourth aqueous solution, and
wherein the bio-surfactant comprises a non-ionic alkyl glycoside in an amount of 1 to 10 wt %, based on the weight of the fourth aqueous solution.