Note: Descriptions are shown in the official language in which they were submitted.
2~~~ ~°~
1 _
DESCRIPTION
TITLE OF THE TNVE:NTION
HXDROCHLOROFLUOROCARBON AZEO'rROPIC OR
AZEOTROPIC-LTKE MIXTURE
TECHNICAL FIELD
The present invention relates to a novel
hydrochlorofluorocarbon azeotropic or azeotropic-like
mixture which can be used as a chlorofluorocarbon
alternative and which has excellent properties as a
solvent and so on.
BACKGROUND ART
Chlorafluorocarbon compounds (hereinafter referred
simply as CFCs) have little toxicity and are, in many
cases, non-flammable and chemically stable. Various CFCs
having different boiling points are available. By virtue
of such properties, 1,1,2-trichloro-1,2,2-trifluoroethane
(R113) is used as a solvent or a blowing agent;
trichloromonofluoromethane (R11) is used as a blowing
agent or a propellant; and dichlorodifluoromethane (R12),
is used as a propellant or a refrigerant.
Chemically stable R11, R12 and 8113 have long
lifetime in the troposphere and reach the stratosphere,
where they will be dissociated by solar radiation tp
release chlorine radicals, which initiate a chain
reaction with ozone and deplete the ozone layer.
Accordingly, the regulations for limiting the use of such
conventional CFCs have been implemented. Therefore, a
. CA 02026576 1999-03-18
r
- 2 -
research has been actively conducted to develop a CFC
alternative which scarcely depletes the ozone layer.
It is an object of the present invention to provide a
mixture containing a novel hydrochlorofluoropropane
having 3 carbon atoms, which has various excellent
properties equal to conventional CFCs and which is useful
as a CFC alternative.
The present invention provides a
hydrochlorofluorocarbon azeotropic or azeotropic-like
mixture comprising at least one member selected from the
group consisting of the hydrochlorofluoropropanes 1,1-
dichloro-2,2,3,3,3-pentafluoropropane and 1,1-dichloro-
2,2,3,3,3-pentafluorpropane, and at least one member
selected from halogenated hydrocarbons having a boiling
point of from 20 to 85°C other than the above
hydrochlorofluoropropanes, hydrocarbons having a boiling
point of from 20 to 85°C, and particularly preferred,
alcohols having from 1 to 4 carbon atoms.
The mixture of the present invention is non-flammable
or hardly flammable and may take a form of an azeotropic
composition or an azeotropic-like composition.
Particularly when used as a solvent, it provides
properties equal or superior to conventional 1,1,2-
trichlorotrifluoroethane (R113). Therefore, it is very
CA 02026576 1999-03-18
- 3 -
useful as an alternative for 8113. Further, no
substantial change in the composition was observed when
boiling or evaporating. Therefore, it may be used in the
same manner as a conventional single CFC, whereby it has
a merit in that no substantial change in the conventional
technique is required.
The hydrochlorofluoropropanes of the present invention
contain a hydrogen atom, a chlorine atom and a fluorine
atom as essential elements. This group broadly includes
the following compounds:
CC2FZCF2CHC22 (R224ca)
CCQZFCFZCHCQF(R224cb)
CF,CFzCHCQ2 (R225ca)
CCQFZCFZCHCQF(R225cb)
CCQFZCFZCHZCQ(R234cc)
CHFZCFZCHCQF(R235ca)
CH3CF~ZCCQZF(R243cc)
CHFzCF2CHz'CQ (R244ca)
CHZCQCFZCH2CQ(R252ca)
CHCQZCFZCH3(R252cb)
CH3CFZCHZCQ(R262ca)
CHFZCFzCCQzF(R225cc)
CHCQf~CFzCHCQF(R234ca)
CfiFzCFzCHCQz (R234cb)
CHzFCFzCC.QzF(R234cd)
CF,CFZCH2CQ(R235cb)
CCQFzCFzCH2F(R235cc)
CHzCQCFzCHCQF (R243~ca)
CHaFCFzCHCQz(R243cb)
CH2FCF2CHCQF(R244cb)
CCQFzCFzCH,(R244cc)
CHzFCFzCHzCQ(R253ca)
CH, CFz CIiCQF (R253cb)
CF,CFZCHCQF~R226ca)
CCQF2CFzCHFz~(R226cb)
CCQ,CFzCHCQz(R222c)
CCQzFCFzCHCQz(R223ca)
CCQ,CF2CHCQF(R223cb)
CCQ3CF~CliFz (R224cc)
CHCQzCFzCIiCQz (R232ca)
CCQ,CFzCHZCQ (R232cb)
CCQzFCFzCHzCQ(R233cb)
CHCQzCFZCHCQF(R233ca)
CCQ,CFZCHZF(R233cc)
CCQ,CFzCH,(R242cb)
CHCQzCFzCHzCQ (R242ca)
CA 02026576 1999-03-18
- 5 -
Among them, of interest are R244ca, R244cb, R235ca, and
R243cc, and particularly preferred are R225ca and R225cb.
The halogenated hydrocarbons having a boiling point
of from 20 to 85°C other than the
hydrochlorofluoropropanes of the formula I, include
chlorinated hydrocarbons, fluorinated hydrocarbons and
brominated hydrocarbons having from 1 to 4 carbon atoms.
The chlorinated hydrocarbons having from 1 to 4
carbon atoms, include dichloromethane, trichloromethane,
trans-1,2-dichloroethylene, cis-1,2-dichloroethylene, 1-
chloropropane, 2-chloro-2-methylpropane, 1,1,1-
trichloroethane and 1,1-dichloroethane. The fluorinated
hydrocarbons include 1,1,2-trichlorotrifluoroethane
-- ~ (R113), 1,1,2-trichloro-2,2-difluoroethane (R122), 1,2,2-
trichloro-1,2-difluoroethane (R122a), 1,1,1-trichloro-
2,2-difluoroethane (R122b), l,l-dichloro-2,2,2-
trifluoroethane (R123), 1,2-dichloro-1,1-difluoroethane
(R132b), 1,2-dichloro-1-fluoroethane (R141)., 1,1-
dichloro-1-fluoroethane (R141b) and
trichlorofluoromethane (R11). Likewise, the brominated
hydrocarbons include 2-bromopropane as a preferred
example.
The hydrocarbons having a boiling point of from 20 to
85°C, include aliphatic, alicyclic and aromatic
hydrocarbons. Preferably, they include hydrocarbons
having from 5 to 8 carbon atoms such as n-pentane,
isopentane, n-hexane, 2,4-dimethylpentane, cyclopentane,
2,2-dimethylbutane, 2-methylpentane, methylcyclopentane,
cyclohexan a and 2,3-~dimethylbutane. The hydrocarbons
having from 5 to 8 carbon atoms may be a mixture obtained
as a petraleum fraction and may preferably be a petroleum
fraction containing as the main component at least one
member selected from the group consisting of
cyclopentane, 2,2-dimethylbutane, 2-methylpentane and
2,3-dimethylbutane.
The azeotropic or azeotropic-like composition of the
mixture of the present invention may vary to an extent of
t 1.0~ by weight depending upon the purities of the
compounds to be mixed or by the influence of measuring
error, etc.
To the mixture of the present invention, other
components may further be incorporated, as the case
requires. For example, when the mixture is used as a
solvent, it may contain at least one member selected from
the group consisting of hydrocarbons such as neopentane,
3-methylpentane, neohexane, hexane, 3-methylhexane,
heptane, isoheptane, 2,3-dimethylpentane, 2,4-
dimethylpentane, octane, 2,2,3-trimethylpentane, 2,2,4-
trimethylpentane, cyclopentane, methylcyclohexane and
ethylcyclohexane; chlorinated hydrocarbons such as 1,1,2-
trichloroethane, 1,2-dichloroethane, trichloroethylene
and tetrachloroethylene; chlorofluorinated hydrocarbons
other than those of the present invention, such as 1,1-
dichloro-2,3,3,3-tetrafluoropropene-1, trans-3=chloro-
1,1,1,2,4,4,5,5,5-monafluoropentene-2, cis-3-chloro-
1,1,1,2,4,4,5,5,5-nonafluoropentene-2,
1,1,1,2,2,5,5,6,6,6-decafluorohexane and tetrachloro-
1,2,-difluoroethane; vitro compounds; phenols; amines;
ethers; amylenes; esters; organic phosphites; epoxides;
furans; alcohols; ketones; amides; and triazoles.
The content of such additional components in the
mixture of the present invention is not particularly
limited, but for the purpose of improving or controlling
the solibility or obtaining a suitable boiling point or
non-flammability, the content is usually from 0 to. 50~ by
weight, preferably from 1 to 40~ by weight. Preferably
such incorporation will bring about an azeotropic or
azeotropic-like composition. Further, to give the
mixture a high level of stabilizing effect, it is
effective to incorporate a stabilizer. The content of
such additional components is usually from 1 ppm to 10~
by weight, preferably from 10 ppm to 5~ by weight.
Further, the mixture of the present invention may further
contain various cleaning assistants, surfactants,
emulsifying agents, water, etc.
As the vitro compounds, those represented by the
formula R-NOz wherein R is a chain or cyclic hydrocarbon
group having from 1 to 6 carbon atoms and containing a
saturated or unsaturated bond, may be employed.
Specifically, they include nitromethane, nitroethane, 1-
nitropropane, 2-nitropropane and nitrobenzene. More
preferred are nit:romethane anck nitroethane.
As the phenols, those represented by the following
formulas are preferred:
R R R R
O R' R ~ OR~
R" ~ ,
R R' COOK
OR' R-~- i R ",
' R ~~ '
R ~~
R R" ~HR
COOR~-R", O
' R
wherein each of R, R', R" and R"' is OH or a chain or
cyclic hydrocarbon group having from 1 to 6 carbon atoms
and containing a saturated or unsaturated bond.
Specifically, they include phenol, o-cresol, m-
cresol, p-cresol, thymol, p-tert-butylphenol, tert-
butylcatechol, catechol, isoeugenol, o-methoxyphenol,
4,4'-dihydroxyphenyl-2,2-propane, isoamyl salicylate,
benzyl salicylate, methyl salicylate and 2,6-di-t-butyl-
p-cresol. More preferred are phenol, 4,4-
dihydroxyphenyl-2,2-propane arid 2,6-di-t-butyl-p-cresol.
As the amines, those represented by the following
formulas are preferred:
2~~~'~'~~
_ g _
R-P1 (R, ) 2 , (R) z-N (R, ) z , (R) a-NR,
R
(R) 3N , RN , 0~ j N-R ,
R,
(R) ZN-R, -N- (R~~) x
R-CHN (R, ) Z-R"-N- (R", ) Z
( ) N-R, -NI-I-R"-N- (R",
(R) ZN- (R' NI-l) 4-R" , R-NH-R,,.and (R) Z-N-OR'
wherein each of R, R', R" and R"' is a hydrogen atom or a
chain or cyclic hydrocarbon group having from 1 to 8
carbon atoms and containing a saturated or unsaturated
bond.
Specifically, they include pentylamine, hexylamine,
diisopropylamine, diisobutylamine, di-n-propylamine,
diallylamine, triethylamine, n-methylaniline, pyridine,
picoline, morpholine, N-methylmorpholine, triallylamine,
allylamine, a-methylbenzylamine, methylamine, ,
dimethylamine, trimethylamine, ethylamine, diethylamine,
propylamine, isopropylamine, sec-butylamine, tert-
butylamine, dibutylamine, tributylamine, dipentylamine,
tripentylamine, 2-ethylhexylamine, aniline, N,N-
dimethylaniline, N,N-diethylaniline, ethylenediamine,
propylenediamine, diethylenetriamine,
tetraethylenepentamine, benzylamine, dibenzylamine,
diphenylamine and diethylhydroxylamine. More preferred
are diisopropylamine and diallylamine.
- to -
As the ethers, those represented by the Following
formulas are preferred:
R
R-0-R~ , 0~ ~ 0 , R-OH-R~ 0~1 ,
R
HO-R-0-R~ , ~f0-R-0-R~ -0-R'~ , 1-IO-R-OH ,
R-0- R' -Ctl - R~~ , R-0-R' _0_R" ,
!-~ J
to R-0-CH - R~ , R-0-R' - (OR~~
~-0
wherein each of R, R' and R" is a chain or cyclic
hydrocarbon group having from 1 to 10 carbon atoms and
containing a saturated or unsaturated bond.
Specifically, they include 1,4-dioxane, 1,2-butanediol,
isopropyl ether, ethylene glycol monomethyl ether,
diethylene glycol monomethyl ether, diethylene glycol
monoethyl ether, dipropylene glycol methyl ether, ethyl
isobutyl ether, ethyl isopentyl ether, ethyl naphthyl
ether, ethyl vinyl ether, ethyl phenyl ether, anisole,
anethole, ethyl propargyl ether, ethyl propyl ether,
ethyl methyl ether, ethylene glycol, methyl glycidyl
ether, ethylene glycol diethyl ether, ethylene glycol
diphenyl ether, ethylene glycol dimethyl ether, ethylene
glycol monophenyl ether, ethylene glycol monobutyl ether,
ethylene glycol monobenzyl ether, dipentyl ether, allyl
ethyl ether, diisopentyl ether, diallyl ether, butyl
- 17. -
glycidy7. ether, allyl glycidyl ether, dipropyl ether,
ethyl glycidyl ether, vinyl glycidyl ettaer, dimethyl
ether, diethyl ether, di-n-propyl ether, dibutyl ether,
1,2-dimethoxyethane, trimethoxyethane, and
triethoxyethane. More preferred are 1,4-dioxane, butyl
glycidyl ether and 1,2-dimethoxyethane.
As the amylenes, a-amylene, ~i-amylene, Y-amylene, a-
isoamylene and ~3-isoamylene are preferred. More
preferred is ~3-amylene.
ZO As the esters, those represented by the following
formulas are preferred:
R-C00-R' , R- i 0 , ~ (R' ) 2-N-C00-R' , and
IV-R,
15 ~ RO-R' -COOR
wherFin each of R, R' and R" is a hydrogen atom or a chain
ox cyclic hydrocarbon group having from 1 to G carbon .
atoms and containing a saturated or unsaturated bond.
20 Specifically, they include methyl acetate, ethyl
acetate, propyl acetate, n-butyl acetate, isobutyl
acetate, isopropyl acetate, ethyl acrylate, 2-
hydroxyethyl methacrylate, methyl acrylate, butyl
acrylate, phenyl acrylate, allyl acrylate, caprolactam,
2~ ethyl carbamate, methyl carbamate, and methyl salicylate.
More preferred are methyl acetate and methyl salicylate.
As the organic phosphites, those represented by the
2~~~~~~~
- 12 -
following formula are preferred:
(RO) 3P, (R-R' -0) 3P , (RO) zPOR' ,
R0
~ R " OCHZ C (RS) 3P ,
R' 0~ 4 ,
R-R' -0 P
R" 3
OHZC\ / CHZO~
to ROP \ ~ C \ ~ POR' ,
OHZC CHZO
~ OH Z C\ / CH 2 0\
R-R' -OP\ ~ C \ / P0-- R"-R"' ,
OF12C CFIZO
wherein each of R, R', R" and R"' is a hydrogen atom or a
saturated or unsaturated chain or cyclic hydrocarbon
group having from 1 to 18 carbon atoms. Specifically,,
they include triphenolphosphite,
tris(nonylphenyl)phosphite, triethylphosphite, tris(2-
ethylhexy7.)phosphiLe, tridecylphosphite,
tributylphosphite, diphenylmono(2-ethylhexyl)phosphite,
diphenylmonodecylphosphite,
diphenylmonotridecylphosphite, dilaurylhydrogen
~phosphite, diphenylhydrogen phosphate,
tetraphenyldipropylene glycol pentaerythritol
tetraphosphite, trilauryltrithiophosphite,
- 13 ~-
bis(tridecyl)pentaerythritol diphosphite,
bis(nonylphenyl)per~taerythritol diphosphite, tristearyl
phosphite, distearyl pentaerythritol diphosphite, and
tris(2,4-di-tert-butylphenyl)phosphite. More preferred
are triphenylphosphite and tributylphosphite.
As the epoxides, those represented by the following
formulas are preferred:
RO and XRO
wherein R is a saturated or unsaturated chain or cyclic
hydrocarbon group having from 1 to 8 carbon atoms, and X
is a halogen atom.
Specifically, they include 1,2-butylene oxide,
epichlorohydrin, propylene oxide, 2,3-butylene oxide and
styrene oxide. More preferred are 1,2-butylene oxide and
epichlorohydrin.
As the furans, those represented by the following
formulas axe preferred:
N - ~ " and
2 o R R R / N 1-!
wherein each of R, R' and R" is a saturated or unsaturated
hydrocarbon group having from 1 to 2 carbon atoms.
Specifically they include tetrahydrofuran, n-
methylpyrrole, 2-methylpyrrole and 3-methylpyrrole. More
preferred is N-methylpyrrole.
'~F ~ "i ; 3
- 14 '
As the alcohols which are mainly used as stabilizers,
those presented by the following formulas are preferred:
R-OH, NH2-R-OH, R-O-R'-OH and R-R'-OH
wherein each of R and R' is a saturated or unsaturated
chain or cyclic hydrocarbon group having from 1 to 6
carbon atoms.
Specifically, they include, methanol, ethanol, sec-
butanol, text-butanol, allylalcohol, benzylalcohol,
propanol, isopropanol, tert-amylalcohol, 1-amino-2-
propanol, propargylalcohol, isobutanol,~butanol, 3-
methyl-pentyn-3-ol, 1-methoxy-2°propanol, 3-methyl-1-
butyn-3-ol, 2-methyl-3-butyn-3-ol, pentyl alcohol,
hexanol, heptanol and octanol. More preferred axe sec-
butanol and propargyl alcohol.
As the ketones and amides, those represented by the
following formulas are preferred:
(R) 2co, R-co-R' , (RNCO> 2,
~ coo ~ -R
R-CO-NFI-R' , R-CON- (R' ) 2,
~COON-R'
(R) ZNCON (R' ) Z, R-c0\ / R \
. / N-R", and CO\ ~ co
R'
R
a5 N~ . \ NR",
- 15 -
wherein each of R, R', R" and R"' is a hydrogen acorn or a
saturated or unsaturated hydrocarbon group having from 1
to 4 carbon atoms. Specifically, they include acetone,
methyl ethyl ketone, methyl isobutyl ketone,
azodicarbonamide, malefic acid hydrazine, phthalic acid
hydrazine, formamide, N-methylformamide, N,N-
dimethylformamide, N-methylpropropioneamide, 2-
pyrrolidone, N,N,N',N'-tetramethylurea and N-
methylpyrrolidone. More preferred are methyl isobutyl
ketone and 2-pyrrolidone.
As the triazoles, those presented by the following
formulas are preferred:
OH
,
R-N3-R' , R-N3-R'--O~i, X-R-N3 "
, I, - R - R , and
R -, . ~ ",
R-N~-R'-N-R"
wherein each of R, R', R" and R"' is a hydrogen atom or a~
saturated or unsaturated chain or cyclic hydrocarbon
group having from 1 to 16 carbon atoms, and X is a
halogen atom.
Specifically, they include 2-(2'-hydroxy-5'-methyl-
phenyl)benzotr:iazole, 2-(2'-hydroxy-3'-tert-butyl-5'-
methylphenyl)-5-chlorobenzotriazole, 1,2,3-benzotriazol2,
and 1-[(N,N-bis-2-ethylhexyl)aminomethyl)benzotriazole.
--
Mare preferred is 1,2,3-benzotriazole.
The hydrochlorofluorocarbon azeotropic or azeotropic-
like mixture of the present invention is useful for
various purposes, for example, as a blowing agent and so
on, like conventional CFCs. It is particularly useful as
a solvent, since it provides a solvency equivalent or
superior to conventional 8113. Specific applications as
the solvent include a removing agent for flux, grease,
oil, wax or ink, a coating solvent, an extracting agent,
a cleaning or water-removing agent for various articles
made of glass, ceramics, plastic, rubber or metal,.
particularly for semiconductor devices, electronic
components, electronic circuit boards, electrical
devices, precision machine parts or optical lenses.
Further, it is useful as a resist developer, a resist-
removing agent or a buff polishing and cleaning agent.
As a cleaning method, manual wiping, dipping, spraying,
shaking, ultrasonic cleaning or vapor cleaning may be
employed.
Now, the present invention will be described in
further detail with reference to Examples. However, it
should be understood that the present invention is by no
means restricted by such specific Examples.
EXAMPLES 1 to 152
1,000 g of a mixture as identified in Table 1 was
charged in a distillation flask, and using a packed
distillation column which contained approximately 20
l~ ._
theoretical plates, distillation was conducted under
atmospheric pressure. The fractions thereby obtained
were measured by gas chromatography, whereby the presence
of an azeotropic composition was found.
On the other hand, the azeotropic-like composition
was obtained from the composition after repeating the
evaporation and condensation of a mixture as identified
in Table 1 for 3 days by an open system cleaning sump.
TEST FOR CLEANING MACHINE OIL
A SUS-304 test piece (25 mm x 30 mm x 2 mm in
thickness) was immersed in machine oil (CQ-30, .
manufactured by Nippon Sekiyu K.K.) and then immersed in
the azeotropic mixture of the present invention for 5
minutes. The results are shown in Table 1, wherein
symbol A-O indicates that the machine oil can be removed
satisfactorily at the same level as 8113.
TEST FOR CLEANING FLUX
A single sided printed circuit board (50 mm x 100 mm
x 1.6 mm in thickness) was coated with a flux (Tamura F-
AL-4, manufactured by Tamura Seisakusho) and heated at
200°C for 2 minutes in a convection oven. Then, it was
immersed in the azeotropic mixture of the present
invention for one minute. The results are shown in Table
1, in which symbol B- 00 indicates that the flux can be
removed satisfactorily at the same level as R113/ethanol
- 96.2 wt~/3.8 wt~.
- 18 -
TEST FOR REMOVING WATER
A glass plate (30 mm x 18 mm x 5 mm in thickness) was
inunersed in deionized water and then irnmersed in the
azeotropic mixture of the present invention for 2U
seconds for removal of water. The glass plate withdrawn,
was immersed in dry methanol, whereby the removal of
water was determined from the increase of the water
content in methanol. The results are shown in Table 1,
in which symbol C-UO indicates that the water can be
lp removed satisfactorily at the same level as R113/methanol
- 93.6 wt~/6.4 wt~.
2265"~
- 19 -
Table 1
Boiling Azeo-
Azeo-
Charged point tropic-
tropic
Exam- B.P. composi- of like Test
com
pies Mixtures (oC) tion Azeo- o cmpo- results
P
sit
on
(wt~) trope sition
(wt~)
(C) (wt~)
R225ca 51.1 30 31 25 5-45 A-
1 R141b 32 70 75 55-95
R225ca 51.1 40 42 22-62 A-OO
2 44
8113 47.6 60 58 38-78
R225ca 51.1 80 78 58-98 A-OO
3 8122 71.9 20 52 22 2-42
R225ca 51,1 52 42 50 30-70~ A-OO
4 R132b 46.8 48 50 30-70
R225ca 51.1 50 47 27-67 B-
Dichloro- 39.8 50 34 53 33-73
methane
R225cb 56.1 20 16 1-36 A-OO
6 32
R141b 32 80 84 64-99
R225cb 56.1 50 43 33-53 B-OO
7 Dichloro- 39.8 50 36 57 47-67
methane
R225cb 56.1 42 39 19-59 A-OO
8 R132b 46.8 58 43 61 41-81
R225cb 56.1 80 78 58-98 A- 00
8122 71.9 20 55 22 2-42
R225cb 56.1 30 32 12-52 A-OO
8113 47.6 70 46 68 48-88
R244ca 54 15 13 1-33 A-OO
11 R141b 32 85 32 87 67-99
R244ca 54 50 38 18-58 A-O
12 Dichloro- 39.8 50 35 62 42-82 B-
methane
202fi~7
- 20 -
Table 1 (continued)
Boiling Azeo-
Charged point Azeo- tropic-
tropic
Exam- B.P. composi- of like Test
pies Mixtures (oC) tion Azeo- compo- compo- results
sition
(wt~) trope sition
(wt~)
(oC) (wt~)
R244ca 54 80 83 63-99 A-O
13 8122 71.9 20 55 17 1-37
R244ca 54 42 38 18-58 A-O
14 R132b 46.8 58 44 62 42-82
R244ca 54 20 47 26 6-46 A-O
15 8113 47.6 80 74 54-94
R225ca 51.1 70 66 46-98~ A-O
16 Cyclo- 99.3 30 45 34 2-54
pentane
R225cb 56.1 58 55 35-98 A-O
17 Cyclo- 49.3 42 47 45 2-65
pentane
R244ca 54 50 48 28-98 A-
2,2- 49.7 50 50 52 2-72
18
dimethyl-
butane
R225cb 56.1 25 21 11-98 A-
2 r 2._ 49.7 75 79 2-89
19 50
dimethyl-
butane
R244ca 54 55 50 30-98 A-OO
20 Cyclo- 49.3 45 47 50 2-70
pentane
R225ca 51.1 60 56 36-98 A-OO
2,2- 49.7 40 49 44 2-64
21
dimethyl-
butane
202~~'~
_ 21 _.
Table 1 (continued)
Roiling Azeo-
Ctaargedpoint Azeo- tropic-
tropic
Exam- B.F. composi-of like Test
Mixtures compo-
ples (C) tion Azeo- cmpo- results
sition
(wt~) trope sition
(wt~)
(C) (wt~)
R225ca 51.1 60 66 46-86 A-OO
22 2-bromo- 59.4 40 47 34 14-54
propane
R225cb 56.1 60 58 38-78 A-OO
23 2-bromo--59.4 40 49 42 22-62
propane
R244ca 54 50~ 55 35-75 A- ~O
24 2-bromo- 59.4 50 48 45 25-65~
propane
R244cb 58 60 50 30-70 A-OO
25 2-bromo- 59.4 40 50 50 30-70
propane
R235ca 43.9 70 74 54-94 A-OO
26 2-bromo- 59.4 30 42 26 6-46
propane
R243cc 60.2 40 50 30-70 A- 00
27 2-bromo- 59.4 60 52 50 30-70
propane '
R225cb 56.1 90 - 50-99 A-O
28 2-methyl-60.3 10 - - 1-50
pentane
R244ca 54 90 91 71-99 A-O
29 2-methyl-60.3 10 55 9 1-29
pentane
R244cb 58 70 72 52-98 A-0
30 2-methyl-60.3 30 55 28 2-48
pentane
2a~~~~
- 22 -
'fable 1 (continued)
Boiling Azeo-
Azeo-
Charged point tropic-
tropic
Exam- B.P, composi- of like Test
_
ple~ Mixtures (C) Lion Azeo- com compo- results
o
i
sit
on
(wt~) trope (wt~) sition
(C) (wt$)
R243cc 60.2 70 74 54-99 A-C>
31 2-methyl-60.3 30 61 26 1-46
pentane
R225cb 56.1 ' 80 78 58-98 A- O
2.3- 58.0 20 22 2-42
32 56
dimethyl-
butane
R244ca 54 80 76 56-96~ A-O
2'3 58.0 20 53 24 4-44
33 dimethyl-
butane
R244cb 58 60 63 43-95 A-~
2.3- 58.0 40 55 37 5-57
34 dimethyl-
butane
R225ca 51.1 90 - 85-99 A-O
23- 58.0 10 - 1-15
35 dimethyl- - ,
butane
R243cc 60.2 90 - 50-95 A-OO
2'3 58.0 10 - 5-50
36 dimethyl- -
butane
R225ca 51.1 60 57 37-77 A-
trans- 47.7 40 43 23-63
37 1,2- 44
dichloro-
ethylene
~0265'~
- 23 -
Table 1 (continued)
Boiling Azeo-
Charged point Azeo- tropie-
tropic
Exam- B.P. composi- of like Test
_
Ales Mixtures (C) Lion Azeo- com Compo- results
o
p
sit
on
(wt~) trope (wt~) sition
(C) (wt$)
R225cb 56.1 50 47 27-67 A-OO
trans- 47.7 50 53 33-73
38 1,2- 46
dichloro-
ethylene
R244ca 54 50 46 27-66 A-O
trans- 47.7 50 54 34-74
39 1,2- 45
dichloro-
ethylene
R244cb 58 45 40 20-60 A-O
traps- 47.7 55 60 40-80
40 1,2- 46
dichloro-
ethylene
R235ca 43.9 70 66 46-86 A-O
traps- 47.7 30 34 14-54
41 1,2- 41
dichloro-
ethylene
R243cc 60.2 40 42 22-62 A-O
traps- 47.7 60 58 38-78
42 1,2- 45
dichloro-
ethylene
R225ca 51.1 80 78 58-98 A-O
cis-1,2- 60.6 20 50 22 2-42
43
dichloro-
ethylene
2o~s~~~
- 24 -
Table 1 (continued)
F3ai.ling Azeo-
Azeo-
Charged point tropic-
tropic
Exam- Fs. composi- of like Test
P.
Mixtures campo-
les (C) Lion Azeo- compo- results
p sition
(wt~) trope sition
(wt~)
(C) (wt~)
R225cb 56.1 70 69 59-79 A-OO
cis-1,2- 60.6 30 53 31 21-41
44
dichloro-
ethylene
R244ca 54 70 67 47-87 A-OO
cis-1,2- 60.6 30 51 33 13-53
45
dichloro-
ethylene
R244cb 58 60 59 39-79 A-OO
cis-1,2- 60.6 40 54 41 21-61
46
dichloro-
ethylene
R235ca 43.9 90 94 74-99 A-OO
cis-1,2- 60.6 10 45 6 1-26
47
dichloro-
ethylene
R243cc 60.2 60 58 38-78 A- 00
cis-1,2- 60.6 40 52 42 22-62
48
dichloro-
ethylene
R244cb 58 10 12 2-32 A-~
49 48
8113 47.6 90 88 68-98
R235ca 43.9 60 56 36-76 A-OO
50 8113 47.6 40 42 44 24-64
IR244cb 58 30 33 13-53 A-OO
51 Dichloro-39.8 70 36 67 47-87
methane '
R235ca 43.9 50 53 33-73 A-OO
52 Dichloro-39.8 50 32 47 27-67
methane
~'~~a'~
25 __
Table 1 (continued)
Boiling Azeo-
Charged point Azeo- tropic-
.
tropzc
Exam- B.P. composi--of like Test
com
ples Mixtures (C) tion Azeo- o compo- results
p -
sition
(wt$) trope (wt$) sition
(C) (wt$)
R243cc 60.2 50 30 10-50 A-OO
53 Dichloro-39.8 50 38 70 50-90
methane
R244cb 58 40 43 23-99 A-OO
54 Cyclo- 49.3 60 48 57 1-77
pentane
R235ca 43.9 80 77 67-99 A-OO
55 Cycla- 49.3 20 42 23 1-33
pentane
R243cc 60.2 25 30 10-99 A-UO
56 Cyclo- 49.3 75 49 70 1-90
pentane
R244cb 58 40 34 14-99 A-O
2r2- 49.7 60 50 66 1-86
57 dimethyl-
butane
R235ca 43.9 80 81 61-99 A-O
2.2 49.7 20 43 19 1-39
58 dimethyl-
butane
R244cb 58 80 75 55-95 A-OO
59 8122 71.9 20 58 25 5-45
R244cb 58 30 29 9-49 A-OO
60 R132b 46.8 70 45 71 51-91
R235ca 43.9 20 14 1-34 A-O
61 8123 27.1 8 28 86 66-99
0
R235ca 43.9 20 57 37-77 A-O
62 R132b 46.8 80 39 43 23-63
_ 26 _.
Tab7.e 1 (continued)
Boiling Azeo-
Charged point Azeo- tropic-
tropic
Exam- B.P. composi- of like Test
Mixtures compo-
ples (C) tion Azeo- sition cmpo- results
(wt~) trope (wt~) sition
(C) (wt~)
R235ca 43,9 30 34 14-54 A-OO
63 R141b 32 70 30 66 46-86
R243cc 60.2 80 77 57-97 A-~
64 8122 71.9 ,20 60 23 3-43
R243cc 60.2 20 24 4-44 A-OO
65 R132b 46.8 80 46 76 56-96
R225ca 51.1 90 95 75-99~ A-~
66 8141 75.7 ZO 52 5 1-25
R225cb 56.1 90 89 69-99 A-UO
67 8141 75.7 10 56 11 1-31
R244cb 58 85 90 70-99 A-O
68 8141 75.7 15 5~ 10 1-30
R225ca 51.1 97 94.6 75-99 B-O
69 Methanol 64.5 3 46 5.4 1-25
C-O
R225cb 56.1 97 95.6 74-99.5
70 Ethanol 78.3 3 53.8 4.4 0.5-26
C-O
R225cb 56.1 97 97.9 77-99 A-O
71 Iso- 82.4 3 54.9 2.1 1-23 B- O
propanol C-O
R225cb 56.1 95 93.3 74-99
72 Methanol 64 5 47.2 6.7 1-26
5
. C-O
R225ca 51.1 90 94.8 14-98 A-O
73 R225cb 56.1 5 50 2.7 1-85 B-O
Ethanol 78.3 5 2.5 1-16 C-O
2026~~b
- 27 -
Table 1 (continued]
Boiling Azeo-
Azeo-
Charged point tropic-
tropic
Exam- B.P. composi-of like Test
Mixtures compo-
ples (C) tion Azeo- sition compo- results
(wt~) trope sition
(wt~)
(C) (wt~)
R225ca 51.1 89 89.8 14-98 A-OO
74 R225cb 56.1 6 46 5.6 1-85 B-O
Methanol 64.7 5 4.6 1-16 C-O
A-
~
R225ca 51.1 98.5 97.3 75-99.5_
B
75 Ethanol 78.3 1.5 50 2.7 0.5-25 C-OO
R225ca 51,1 76-99 A-OO
76 Tso- 82.4 - - - 1-24 B--UO
~
propanol C-O
R225ca 51.1 35 38 15-61 A-O
8113 47.6 15 15 8-44 B-OO
77 Dichloro-39.8 50 - 47 34-70
methane
R225cb 56.1 25 26 6-37 A-OO
78 8113 47.6 35 - 35 22-52
R132b 46.8 40 39 27-51
R225ca 51.1 3S 32 22-55 A-OO
79 8113 47.6 25 - 29 10-46
R132b 46.8 40 39 21-55
R225cb 56.1 25 26 8-38 A-OO
8113 47.6 25 24 8-47 B-OO
80 Dichloro-39.8 50 - 50 34-63
methane
R244ca 54 25 25 6-33 A-OO
8113 47,6 20 19 9-41 B-OO
81 Dichloro-39.8 55 - 56 43-68
methane
R244ca 54 20 19 4-39 A-Oo
82 8113 47.6 30 - 32 6-53
R132b 46.8 50 49 30-67
202~W
- 28 -
Table 1 (continued)
Boiling Azeo-
Azeo-
Charged point tropic-
tropic
Exam- B.P. composi-of like Test
Mixtures compo-
ples (C) Lion Azeo- compo- results
sition
(wt~) trope sition
(wt~)
(C) (wt~)
R225ca 51.1 40 41 28-52 A-OO
8113 47.6 20 22 7-39 B-O
trans- 47.7 40 37 25-48
83 -
1,2-
dichloro-
ethylene
R244ca 54 30 25 8-36 A-OO
8113 47.6 60 62 48-85. B-OO
84 2-bromo- 59.4 10 - 13 3-28
propane
R225ca 51.1 40 42 29-60 A-OO
8113 47.6 50 47 11-61 B-OO
85 2-bromo- 59.4 10 - 11 3-29
propane
R244ca 54 20 22 4-38 A- 00
8113 47.6 60 58 40-77 B-OO
86 cis-1,2- 60.6 20 - 20 9-32
dichloro-
ethylene '
R225ca 56.1 35 32 19'43 A-OO
8113 47.6 50 53 39-60 B-CJ
87 cis-1,2- 60.6 15 - 15 8-22
dichloro-
ethylene
R225ca 51.1 40 42 25-54 A-~
8113 47.6 45 45 38-58 B-O
88 cis-1,2- 60.6 15 - 13 8-22
dichloro-
ethylene '
~~D26~~
'i'able 1 (CUI7tlnued)
Boiling Azeo-
Azeo-
Charged point tropic-
tropic
Exam- B.P. composi-of like Test
Mixtures compo-
ples (C) Lion Azeo- cmpo- results
sition
(wt~) trope (wt~) sition
(C) (wt~)
R244ca 54 35 34 5-95 A-
8113 47.6 22 20 4-60 B- ~O
trans- 47.7 48 46 26-59
8g -
1,2-
dichloro-
ethylene
R225cb 56.1 35 36 27-51 A- oU
8113 47.6 25 27 6-44 B-OO
.
trans- 47.7 40 37 29-48
90 -
1,2-
dichloro-
ethylene
R225cb 56.1 35 34 22-43 A- 00
8113 47.6 55 56 38-68 B-OO
91 2-bromo- 59.4 10 - 10 3-26
propane
R225cb 56.1 35 34 20-53 A-OO
8113 47.6 55 55 8-72
92 Cyclo- 49.3 10 - 11 1-40
pentane -
R225ca 51.1 40 41 28-65 A-O
8113 47.6 50 52 13-68
93 Cyclo- 49.3 10 - 7 2-35
pentane
R244ca 54 25 23 17-46 A- 00
8113 47.6 70 71 8-77
94 2,2- 49.7 5 - 6 2-56
dimethyl-
butane
20265
- 30 -
Table 1 (continued)
Boiling Azeo-
Charged point Azeo- tropic-
tropic
Exam- B.P. composi-of like Test
Mixtures com
o-
ples (C) tion Azeo- p compo- results
sition
(wt~) trope sition
(wt~)
(C) (wt~)
R225ca 51.1 50 52 42-61 A- 00
8113 47.6 20 16 7-55 B-O
95 -
1-chloro- 46.6 30 32 2-43
propane
R225cb 56.1 40 42 23-44 A-O
8113 47.6 30 27 8-70 B-OO
96 -
1-chloro- 46.6 30 31 2-47
propane
R244ca 54 20 22 4-33 A-OO
8113 47.6 60 57 41-78 B-OO
97 2-chloro- 50.7 20 - 21 8-31
2-methyl-
propane
R244ca 54 30 27 5-45 A-OO
R113 47.6 50 50 9-74
~8 -
Cyclo- 49.3 20 23 12-46
pentane
R225ca 51.1 45 40 28-56 A- 00
8113 47.6 50 55 12-64 B-OO
99 2-chloro- 50.7 5 - 5 2-32
2-methyl-
propane
R225cb 56.1 30 31 17-38 A-OO
8113 47.6 60 58 41-75 B- n0
100 2-chloro- 50.7 10 - 11 2-21
2-methyl-
propane
R224ca 54 35 36 9-39 A-OO
8113 47.6 20 19 9-84 B-OO
101 -
1-chloro- 46.6 45 45 2-60
propane
20265'
- 31 -
Table 1 (continued)
Boiling Azeo-
Azeo-
Charged point tropic-
tropic
Exam- B.P. composi- o~ like Test
ples Mixtures (oC) tion Azeo- compo-compo- results
sition
(wt~) trope sition
(wt~)
(C) (wt~)
R225ca 51.1 90 90 36-97 A-O
R225cb 56.1 5 7 1-51
102 -
2-methyl-60.3 5 3 1-16
pentane
R225ca 51.1185 88 6-94 A-O
R225cb 56.1 10 8 1-83
103 2,3- 58.0 5 - 4 1-26
dimethyl-
butane
R225ca 51.1 50 50 6-67 A-~
R225cb 56.1 10 12 4-67 B-O
104 2-chloro-50.7 40 - 38 1-58
2-methyl-
propane
R225ca 51.1 ~ 40 41 7-56 A-O
R225cb 56.1 15 14 7-61 B-O
(
105 1-chloro-46.6 45 - 45 1-54
propane
R225ca 51.1 55 54 6-66 A-O
R225cb 56.1 10 10 5-64 B-O
106 -
2-bromo- 59.4 35 36 10-48
propane
R225ca 51.1 60 58 6-70 A-O
R225cb 56.1 10 12 4-74 B-O
107 cis-1,2- 60.6 30 - 30 10-38
dichloro-
ethylene
- 32 -
Table 1 (continued)
Boiling Azeo-
Azeo-
Charged point tropic-
tropic
Exam- B.P. composi- of like Test
Mixtures compo-
ples (C) tion Azeo- Sition cmpo- results
(wt~) trope sition
(wt~)
(C) (wt~)
R225ca 51.1 40 42 8-57 A- 00
R225cb 56.1 15 13 6-54 B-OO
trans- 47.7 45 45 10-59
108 -
1,2-
dichloro-
ethylene
R225ca 51.1 80 80 40-89 A-O
109 R225cb 56.1 10 - 8 2-37 B-~
.
8122 71.9 10 12 3-23
R225ca 51.1 80 84 44-92 A-O
110 R225cb 56.1 10 - 8 2-41 B-O
8141 75.7 10 8 1-17
R225ca 51.1 35 36 6-44 A-O
111 R225cb 56.1 10 - 11 4-44 B-O
R132b 46.8 55 53 44-73
R225ca 56.1 25 20 8-31 A-O
R141b 32 65 67 36-88 B-
112 Dichloro- 39.8 10 - 13 3-38 ,
methane
R225ca 51.1 30 26 8-41 A- OO
R141b 32 60 62 32-84 B-~
113 Dichloro- 39.8 10 - 12 3-31
methane
R225ca 51.1 15 12 6-33 A-O
114 R141b 32 5 - 7 2-33 B-O
8123 27.1 80 81 44-86
R225ca 51.1 30 33 5-47 A-O
115 R225cb 56.1 10 - 9 3-42
8113 47.6 60 58 5-79
1 1 ~ i L 1 r r n
- 33 -
Table 1 (continued)
Boiling Azeo-
Azeo-
Charged point tropic-
tropic
Exam- B.P. composi- of like Test
Mixtures compo-
ples (C) tion Azeo- sition compo- results
(wt~) trope sition
(wt~)
(C) (wt$)
R225ca 51.1 25 25 9-49 A-Oo
R225cb 56.1 Z1 21 8-39 B- 00
116 Dichloro-39.8 55 - 54 5-70
methane
R244ca 54 15 16 6-31 A-OO
R141b 32 70 68 38-90 B-O
117 Dichloro-39.8 15 - 16 3-40
methane
R244ca 54 20 21 5-58 A- 00
R225cb 56.1 40 42 7-66 B-O
118 2-bromo- 59.4 40 - 37 5-54
propane
R244ca 54 30 31 4-58 A-
R225cb 56.1 40 35 7-71 B-O
119 cis-1,2- 60.6 30 - 34 4-43
dichloro-
ethylene
R244ca 54 15 15 8-58 A-O
R225cb 56.1 40 39 9-65 B- ~O
120 1-chloro-46.6 45 - 46 5-71
propane
R244ca 54 ZO 22 7-55 A-O
R225cb 56.1 30 32 8-56 B-O
121 2-chloro-50.7 50 - 46 5-74
2-methyl-
propane
R244ca 54 60 62 29-87 A-O
R225cb 56.1 20 20 6-68
122 2,3- 58 20 - 18 2-29
dimethyl-
butane
~0~~~~
- 34 -
Table 1 (continued)
Boiling Azeo-
Charged point Azeo- tropic-
tropic
Exam- B.P. composi- of like Test
Mixtures compo-
ples (C) Lion Azeo- compo- results
sition
(wt~) trope (wt~) sition
(C) (wt~)
R244ca 54 20 18 5-42 A-OO
123 R225cb 56.1 20 - 24 7-50 B-~
R132b 46.8 60 58 41-80
R244ca 54 30 30 5-55 A-OO
R225cb 56.1 25 26 8-57 B-OO
trans- 47.7 45 44 5--61
124 -
1,2-
dichloro-
ethylene
R244ca 54 25 25 8-56 A-OO
R225cb 56.1 30 32 9-55
125 Cyclo- 49.3 45 - 45 5-69
pentane
R244ca 54 20 17 7-35 A-O
R225cb 56.1 20 24 9-42 B-o0
126 Dichloro-39.8 60 - 59 45-73
methane
R244ca 54 40 39 7-61 A-OO
R225ca 51.1 20 19 8-71
127 2,2- 49.7 40 - 42 5-72
dimethyl-
butane
R244ca 54 10 12 5-41 A-OO
R225ca 51.1 30 34 9-48 B-OD
128 Dichloro-39.8 60 - 54 40-73
methane
R244ca 54 10 9 2-37 A-OO
l29 R225ca 51.1 40 - 40 7-50 B-OO
R132b 46.8 ~ 50 51 35-72
~o~~~~
- 35 -
Table 1 (continued)
Boiling Azeo-
Charged point Azeo- tropic-
tropic
Exam- B.P. composi- of like Test
Mixtures compo-
ples (C) Lion Azeo- compo- results
.
sition
(wt~) trope sition
(wt~)
(C) (wt~)
R244ca 54 25 24 3-49 A-~
130 R225ca 51.1 70 - 70 47-95 B-~
8141 75.7 5 6 0.1-17
R244ca 54 10 11 5-S5 A-CC~
R225ca 51.1 55 55 9-67
131 Cyclo- 49.3 35 - 34 3-53
pentane
R244ca 54 20 21 3-59 A-OO
~
132 R225ca 51.1 70 - 70 36-93 B-Oo
8122 71.9 10 9 1-22
R244ca 54 10 11 3-69 A-OO
R225ca 51.1 50 47 8-78 B-OO
trans- 47.7 40 42 3-54
133 -
1,2-
dichloro-
ethylene
R244ca 54 8 10 3-59 A-OO
R225ca 51.1 62 60 7-75 B-O
134 cis-1,2- 60.6 30 - 30 3-38
dichloro-
ethylene
R244ca 54 10 8 3-58 A-OO
R225ca 51.1 60 58 6-71 B-~
135 2-bromo- 59.4 30 - 34 3-44
propane
R244ca 54 45 47 22-86 A-O
136 R225cb 56.1 45 - ~ 47 6-72 B-OO
8141 75.7 10 6 1-21
~026~~
- 36 -
Table 1 (COIltlnued)
Bailing Azeo
Charged point Azeo- tropic-
tropic
Exam- B.P. compasi- of like Test
Mixtures compo-
ples (C) tion Azeo- compo- results
sition
(wt~) trope sition
(wt$)
(C) (wt$)
R225ca 51.1 50 48 10-88 A-OO
R225cb 56.1 10 15 8-70
137 Cyclo- 49.3 40 - 37 3-58
pentane
R244ca 54 50 45 8-83 A-~
138 R225cb 56.1 40 - 45 6-84 B-OO
8122 71.9 10 10 3-28
R244ca 54 30 29 3-84 A-~
~
R225ca 51.1 65 67 13-94
139 2,3- 58 5 - 4 0.1-19
dimethyl-
butane
R244ca 54 10 11 3-98 A-OO
R225ca 51.1 50 48 7-62 B-O
140 1-chloro-46.6 40 - 41 3-56
propane
R244ca 54 10 10 3-56 A-
R225ca 51.1 60 54 6-72 B-O
141 2-chloro-50.7 30 - 36 3-54
2-methyl-
propane
R244ca 54 45 42 7-76 A-O
R225cb 56.1 10 14 8-62
142 2, 2- 49 45 - 44 3-73
.7
dimethyl-
butane
20~~~~
- 37 -
Table 1 (continued)
Boiling Azeo-
Charged point Azeo- tropic-
tropic
Exam- B.P. composi- of like Test
ples Mixtures (oC) tion Azeo- compo- compo- results
sition
(wt~) trope sition
(wt~)
(~C) (wt~)
R244ca 54 76-99 A-O
143 Methanol 64.'7- - - 1-24 B-O
R244ca 54 77-99 A-OO
144 Ethanol 78.3 - - - 1-23 B-OO
R244ca 54 79-99 A- n0
145 Iso- 82.4 - - - 1-21 B-O
propanol
R225ca 51.1 50-80
146 R244ca 54 - - - 10-40 A-OO
Ethanol 78.3 . 1-ZO B- 00
R225cb 56.1 40-80
147 R224ca S4 - - - 10-50 A-OO
Ethanol 78.3 1-ZO B-Oo
R225ca 51.1 5-99
R225cb 56.1 3-99 A- 00
148 R244ca 54 - - - 1-69 H-OO
Ethanol 78.3 1-35
R225ca 51.1 50-80 A-1o0
149 R244ca 54 - - - 10-40 B-OO
Methanol G4.7 1-10
R225cb 56.1 40-80 A-
150 R244ca 54 - - - 10-50 H-OO
Methanol 64.7 1-10
R225ca 51.1 5-99 A- 00
R225cb 56.1 3-99 B- 00
151 R244ca 54 - - - 1-69
Methanol 64.7 1-35
202G~°~
- 38 -
Table 1 (cont.i.nued)
Boiling Azeo-
Chargec~ point Azeo- tropic-
tropic
Exam- B.F. composi- o like Test
Mixtures compo-
ples (C) tion Azeo- sitioncmpo- results
(wt~) trope sition
(wt~)
(C) (wt$)
R225ca 51.1 1-98 A-OO
R22~cb 56.1 1-98 B-OO
152 - - -
Iso- 82.4 1-16
~propanol
2026~'~
- 39 -
REFERENCE EXAMPLES
For the purpose of ascertaining the effects of the
azeotropic-like mixture of the present invention for
stabilization, the following test was applied to the
mixture as identified in Table 2.
In accordance with JIS K1600, a metal test piece was
placed in both the liquid phase portion and the gas phase
portion of the stabilized mixture as identified in Table
2, and after 48 hours, the state of corrosion of the test
piece was inspected. The results are shown in Table 2.
Azeotropic-like mixture
AA: R225ca/R225cb/methanol = 47 wt~/47 wt$/6 wt~
Stabilizer
NM: Nitromethane PH: Phenol
DIPA: Diisopropylamine DO: 1,4-Dioxane
Am: j3-Amylene MeA: Methyl acetate
TPH: Triphenylphosphite B0: 1,2-Buthyleneoxide
DME: 1,2-Dimethoxyethane MP: N-methylpyrrole
s-Bu: sec-Butanol MIBK: Methyl isobutyl ketone
ECH: Epichlorohydrin i-Bu: Isobutanol
BHT: 2,6-Di-t-butyl-o-cresol
BTA: 1,2,3-Benzotriazole
Appearance of test piece
O : No corrosion O : No substantial corrosion
0 : Corrosion slightly observed
X: Substantial corrosion observed.
- 40 -
Table 2
Cor
Reference rosion
of
test
piece
Stabilized mixture (wt~)
Examples Fe Cu Ag
AA01 AA(99.5)/PH(0.5) O O O
AA02 AA(99.5)/DIPA(0.5) ~ O O
AA03 AA(99.5)/Am(0.5) O O O
AA04 AA(99.5)/TPH(0.5) O O O
AA05 AA(99.5)/MP(0.5) ~ O O
AA06 AA(99.5)/BTA(0.5) O O O
AA07 AA(99)/NM(1) O O O
AA08 AA(99)/DO(1) O O O
AA09 AA(99)/MeA(1) O O O
AA10 AA(99)/B0(1) O O O
AAIl AA(99)/DME(1) O O
AA12 AA(99)/s-Bu(1) OO O O
AA13 AA(99)/MIBK(1)
AA14 AA(99)/ECH(1) O O O
AA15 AA(98.5)/NM(1)/BTA(0.5) O O ~ '
AA16 ~(975)/NM(1)/BO(1)/ Op OO O
BHT(0.5)
AA17 ~(97)/NM(1)/BO(1)/ Oo O
BHT(0.5/BTA(0.5)
X18 AA(96)/NM(1)/BTA(0.5)/
BO(1)/i-Bu(1)/BHT(0.5)
Compara-
tive AA(100)
Example
- 41 -
INDUSTRIAL APPLICABILITY
The hydrochlorofluorocarbon azeotropic or azeotropic-
like mixture of th a present invention is non-flammable or
hardly flammable and has excellent properties equal or
superior to conventional CFCs. Further, the mixture
shows no substantial change in the composition during
boiling and evaporating, since it has an azeotropic
composition or an azeotropic-like composition, and it can
be used in the same manner as a conventional single CFC
and thus has a merit that it requires no substantial
change of the conventional technique. Further, it. is
excellent in the properties for dissolving and removing a
flux or oil like 8113 which is commonly used as a
- solvent, and thus it is useful as a cleaning agent which
may be an alternative for 8113.
