Fire extinguishing composition and method for fire extinguishing

• US 5,945,025 A
• Filed: 12/08/1997
• Issued: 08/31/1999
• Est. Priority Date: 12/08/1997
• Status: Expired due to Fees

• Current Assignee: Fail Safe Safety Systems, Inc.
• Original Assignee: Fail Safe Safety Systems, Inc.
• Inventors: Cunningham, James A.
• Primary Examiner(s): ANTHONY, JOSEPH DAVID
• Application Number:
  US08/986,803
• Time in Patent Office: 631 Days
• Field of Search: 252/2, 252/3, 252/7, 169/46, 169/47
• US Class Current: 252/7
• CPC Class Codes: A62D 1/0035 Aqueous solutions

Abstract

A fire fighting composition including sodium bicarbonate, potassium bicarbonate and a potassium salt of an organic acid having 1 to 6 carbon atoms, such as potassium citrate. When mixed with water, the composition can be sprayed as a solution on fires.

Claims

1. A fire extinguishing composition consisting essentially of

(a) 2 to 3 weight % of sodium bicarbonate,

(b) 10 to 15 weight % of potassium bicarbonate, and

(c) 84 to 86 weight % of a potassium salt of an organic acid having 1 to 6 carbon atoms.

2. The composition of claim 1, wherein the potassium salt of an organic acid having 1 to 6 carbon atoms is potassium citrate.

3. The composition of claim 2, wherein the sodium bicarbonate is in an amount of 2.5 to 3.5 weight %.

4. The composition of claim 1, wherein the sodium bicarbonate is in an amount of 2.5 to 3 weight %, the potassium bicarbonate is in an amount of 12 to 15 weight % and the potassium salt of an organic acid having 1 to 6 carbon atoms is in an amount of 84 to 85 weight %.

5. The composition of claim 4, wherein the potassium salt of an organic acid having 1 to 6 carbon atoms is potassium citrate.

6. The composition of claim 1, wherein the sodium bicarbonate is in an amount of 2.1 to 2.3 weight %, the potassium bicarbonate is in an amount of 12.5 to 13.5 weight % and the potassium salt of an organic acid having 1 to 6 carbon atoms is in an amount of 84.5 to 85 weight %.

7. The composition of claim 6, wherein the potassium salt of an organic salt having 1 to 6 carbon atoms is potassium citrate.

8. A fire extinguishing composition consisting essentially of

(a) 2 to 3 weight % of a bicarbonate selected from the group consisting of sodium bicarbonate and lithium bicarbonate;

(b) 10 to 15 weight % of potassium bicarbonate; and

(c) 84 to 86 weight % of potassium citrate.

9. A fire extinguishing composition consisting essentially of

(a) 2 to 3 weight % of sodium bicarbonate;

(b) 10 to 15 weight % of a bicarbonate selected from the group consisting of potassium bicarbonate and lithium bicarbonate; and

(c) 84 to 86 weight % of potassium citrate.