Azeotrope-like compositions of 1,1,2,3-tetrachloropropene and hydrogen fluoride
View Patent ↗An azeotrope-like composition consisting essentially of 1,1,2,3-tetrachloropropene and hydrogen fluoride is provided, as well as methods that involve such an azeotrope-like composition.
1. An azeotrope-like composition consisting essentially of 1,1,2,3-tetrachloropropene and hydrogen fluoride.
2. The azeotrope-like composition of claim 1 , wherein said azeotrope-like composition consists essentially of from about 1 to about 95 weight percent hydrogen fluoride and from about 5 to about 99 weight percent 1,1,2,3-tetrachloropropene.
3. The azeotrope-like composition of claim 2 , wherein said azeotrope-like composition has a boiling point of from about 0° C. to about 60° C. at a pressure of from about 7 psia to about 58 psia.
4. The azeotrope-like composition of claim 1 , wherein said azeotrope-like composition consists of hydrogen fluoride and 1,1,2,3-tetrachloropropene.
5. The azeotrope-like composition of claim 4 wherein the hydrogen fluoride in present in an amount of from about 1 to about 95 weight percent and from about 5 to about 99 weight percent 1,1,2,3-tetrachloropropene.
6. The azeotrope-like composition of claim 5 wherein the hydrogen fluoride in present in an amount of from about 5 to about 91 weight percent and from about 9 to about 95 weight percent 1,1,2,3-tetrachloropropene.
7. The azeotrope-like composition of claim 6 wherein the hydrogen fluoride in present in an amount of from about 55 to about 89 weight percent and about 11 to about 45 weight percent 1,1,2,3-tetrachloropropene.
8. A method for forming an azeotropic or azeotrope-like composition comprising blending hydrogen fluoride with 1,1,2,3-tetrachloropropene at a temperature of from about 0° C. to about 60° C. and at a pressure of about 7 psia to about 58 psia to produce an azeotrope-like mixture consisting essentially of about 1 to about 95 weight percent hydrogen fluoride and from about 5 to about 99 weight percent 1,1,2,3-tetrachloropropene.
9. The method of claim 8 wherein said azeotrope-like mixture consists of about 1 to about 95 weight percent hydrogen fluoride and from about 5 to about 99 weight percent 1,1,2,3-tetrachloropropene.
10. The method of claim 9 wherein said azeotrope-like mixture has from about 5 to about 91 weight percent hydrogen fluoride and from about 9 to about 95 weight percent 1,1,2,3-tetrachloropropene.
11. The method of claim 9 wherein azeotrope-like mixture has from about 55 to about 89 weight percent hydrogen fluoride and about 11 to about 45 weight percent 1,1,2,3-tetrachloropropene.
12. A solvent comprising an azeotrope-like composition according to claim 1 .
13. The solvent of claim 12 having at least about 50 weight percent of said azeotrope-like composition.
14. The solvent of claim 12 having at least about 95 weight percent of said azeotrope-like composition.
15. The solvent of claim 12 consisting essentially of said azeotrope-like composition.
16. The solvent of claim 12 consisting of said azeotrope-like composition.
17. A sprayable composition comprising an azeotrope-like composition according to claim 1 .
18. The sprayable composition of claim 17 having at least about 50 weight percent of said azeotrope-like composition.
19. The sprayable composition of claim 17 having at least about 95 weight percent of said azeotrope-like composition.
20. The sprayable composition of claim 17 consisting essentially of said azeotrope-like composition.
21. The sprayable composition of claim 17 consisting of said azeotrope-like composition.
22. A method for removing surface oxidation from a substrate comprising contacting an oxidized surface of a metal substrate with a solvent according to claim 12 under conditions effective to remove an amount of metal oxides from said surface.