Environmentally beneficial and effective hydrochlorofluorocarbon compositions for fire extinguishing applications
View Patent ↗Compositions are described which are useful in many applications such as fire extinguishing or refrigeration. The compositions may include a hydrochlorofluorocarbon such as 2,2-dichloro-1,1,1-trifluoroethane, a dispersant such as CF 3 I, and an inert gas such as argon, and may in some embodiments be held under pressure. For example, some fire extinguishing compositions may be composed of 2,2-dichloro-1,1,1-trifluoroethane, CF 3 I, and argon.
1. A fire extinguishing unit, comprising a container, a valve, and a nozzle, wherein said container contains a fire extinguishing composition;
wherein the fire extinguishing composition has a pressure of about 70 psig to about 800 psig at about 20° C. and consists essentially of:
2,2-dichloro-1,1,1-trifluoroethane;
CF 3 I; and
argon.
2. The fire extinguishing unit of claim 1 , wherein the 2,2-dichloro-1,1,1-trifluoroethane is about 95% by weight of the of the fire extinguishing composition without the argon.
3. The fire extinguishing unit of claim 1 , wherein the fire extinguishing composition has a pressure of about 70 psig to about 250 psig at about 20° C.
4. The fire extinguishing unit of claim 1 , wherein the CF 3 I is about 4% to about 6% by weight of the of the fire extinguishing composition without the argon.
5. A fire extinguishing unit comprising a container and a pressure delivery system, wherein said container contains a fire extinguishing composition, wherein the fire extinguishing composition comprises 2,2-dichloro-1,1,1-trifluoroethane CF 3 I, and argon.
6. The fire extinguishing unit of claim 5 , further comprising a valve, and a nozzle, wherein said container contains the fire extinguishing composition;
wherein the composition comprises:
a basis comprising the 2,2-dichloro-1,1,1-trifluoroethane;
a dispersant consisting essentially of CF 3 I; and
an inert gas comprising argon.
7. The fire extinguishing unit of claim 6 , wherein the fire extinguishing composition is substantially free of CF 4 .
8. The fire extinguishing unit of claim 6 , wherein the basis consists essentially of 2,2-dichloro-1,1,1-trifluoroethane.
9. The fire extinguishing unit of claim 6 , wherein the fire extinguishing composition has a pressure of about 70 psig to about 200 psig at about 20° C.
10. The fire extinguishing unit of claim 9 , wherein the fire extinguishing composition has a pressure of about 100 psig to about 150 psig at about 20° C.
11. The fire extinguishing unit of claim 5 , wherein the fire extinguishing composition consists essentially of about 94% to about 96% by weight 2,2-dichloro-1,1,1-trifluoroethane and about 4% to about 6% by weight CF 3 I based upon the total weight of the 2,2-dichloro-1,1,1-trifluoroethane and the CF 3 I; and argon resulting in a composition pressure of about 100 to about 195 psig at about 20° C.
12. The fire extinguishing unit of claim 11 , wherein the fire extinguishing composition has a pressure of about 100 psig to 150 psig at 20° C.
13. The fire extinguishing unit of claim 11 , wherein the fire extinguishing composition consists essentially of about 95% by weight 2,2-dichloro-1,1,1-trifluoroethane and about 5% by weight CF 3 I based upon the total weight of the 2,2-dichloro-1,1,1-trifluoroethane and the CF 3 I; and argon resulting in a composition pressure of about 100 to about 195 psig at about 20° C.
14. A fire extinguishing unit comprising a container and a pressure delivery system, wherein said container contains a fire extinguishing composition comprising about 94% to about 96% by weight 2,2-dichloro-1,1,1-trifluoroethane, about 4% to about 6% by weight CF 3 I, based upon the total weight of the basis and the dispersant, and argon.