Azeotrope-like compositions of 1,1,2-trichloro-1,2,3-trifluoroethane, methanol, nitromethane, 1,2-dichloroethylene, acetone and hexane
AssigneeAllied-Signal Inc.
InventorsHillel Magid, David P. Wilson, Earl A. E. Lund
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Abstract
Azeotrope-like compositions comprising 1,1,2-trichloro-1,2,2-trifluoroethane, methanol, nitromethane, 1,2-dichloroethylene, acetone and hexane. These mixtures are useful in a variety of vapor degreasing applications and as solvents in a variety of industrial cleaning applications including defluxing of printed circuit boards.
Claims21
Azeotrope-like compositions consisting essentially of from about 61.7 to about 70.0 weight percent 1,1,2-trichloro-1,2,2-trifluoroethane, from about 5.1 to about 6.1 weight percent methanol, from about 0.05 to about 0.6 weight percent nitromethane, from about 24.0 to about 30.0 weight percent 1,2-dichloroethylene, from about 0.3 to about 1.0 weight percent acetone and from about 0.5 to about 5.0 weight percent hexane which boil at about 38.4.degree. C. at 760 mm Hg.
Dependencies are inferred from the claim text.