Stabilized azeotrope or azeotrope-like composition of 1,1,2-tric

Details Stabilized azeotrope or azeotrope-like composition of 1,1,2-tric Stabilized azeotrope or azeotrope-like composition of 1,1,2-tric

1988-02-02

1989-02-07

Wax, Robert A.

Compositions

Water-softening or purifying or scale-inhibiting agents

252162, 252170, 252172, 252364, C11D 730, C11D 750

Patent

active

048030090

ABSTRACT:
A stabilized azeotrope or azeotrope-like composition is disclosed comprising an azeotrope or azeotrope-like composition of 1,1,2-trichloro-1,2,2-trifluoroethane, methanol and 1,2-dichloroethylene and about 0.001 to 0.004 wt. percent of a lower alkoxyphenol, about 0.01 to 1.0 wt. percent 1,2-butylene oxide, about 0.01 to 1.0 wt. percent diisopropylamine and at least one of about 0.01 to 1.0 wt. percent nitromethane and about 0.01 to 1.0 wt. percent 1,2-propylene oxide, said wt. percents based on the weight of the azeotrope or azeotrope-like composition.

REFERENCES:
patent: 2797250 (1957-06-01), Copelin
patent: 3455835 (1969-07-01), Burt
patent: 3629128 (1971-12-01), Rains
patent: 3852367 (1974-12-01), Katsuragawa et al.
patent: 3960746 (1976-06-01), Gorski

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