Search azeotropic data of organic mixtures

On this page you can check that a mixture of selected organic substances is zeotropic or azeotropic. The azeotropic information (boiling point/temperature, composition) is predicted, using the UNIFAC (modified, Dortmund version) model.

Find more information about azeotropes at Wikipedia

Find more information about the method of prediction in the About section.

Select compounds

Name	CAS-nr.	Formula	Family
acetone	67-64-1	C₃H₆O	ketone
methanol	67-56-1	CH₄O	alcohol
dichloromethane	75-09-2	CH₂Cl₂	halocarbon
tetrahydrofuran	109-99-9	C₄H₈O	ether
water	7732-18-5	H₂O	water
ethanol	64-17-5	C₂H₆O	alcohol
ethyl acetate	141-78-6	C₄H₈O₂	ester
toluene	108-88-3	C₇H₈	aromatic
acetic acid	64-19-7	C₂H₄O₂	carboxylic acid
isopropanol	67-63-0	C₃H₈O	alcohol
chloroform	67-66-3	CHCl₃	halocarbon
acetonitrile	75-05-8	C₂H₃N	nitrile
1-butanol	71-36-3	C₄H₁₀O	alcohol
n-hexane	110-54-3	C₆H₁₄	hydrocarbon
methyl acetate	79-20-9	C₃H₆O₂	ester
cyclohexane	110-82-7	C₆H₁₂	hydrocarbon
n-pentane	109-66-0	C₅H₁₂	hydrocarbon
n-heptane	142-82-5	C₇H₁₆	hydrocarbon
acetaldehyde	75-07-0	C₂H₄O	aldehyde
n-octane	111-65-9	C₈H₁₈	hydrocarbon
n-nonane	111-84-2	C₉H₂₀	hydrocarbon
n-decane	124-18-5	C₁₀H₂₂	hydrocarbon
n-undecane	1120-21-4	C₁₁H₂₄	hydrocarbon
n-dodecane	112-40-3	C₁₂H₂₆	hydrocarbon
i-pentane	78-78-4	C₅H₁₂	hydrocarbon
neo-pentane	463-82-1	C₅H₁₂	hydrocarbon
i-hexane	107-83-5	C₆H₁₄	hydrocarbon
2,3-dimethyl-butane	79-29-8	C₆H₁₄	hydrocarbon
2,2-dimethyl-butane	75-83-2	C₆H₁₄	hydrocarbon
2,2,3-trimethyl-butane	464-06-2	C₇H₁₆	hydrocarbon
2,2,3-trimethyl-pentane	564-02-3	C₈H₁₈	hydrocarbon
2,3,4-trimethyl-pentane	565-75-3	C₈H₁₈	hydrocarbon
cyclopentane	287-92-3	C₅H₁₀	hydrocarbon
cycloheptane	291-64-5	C₇H₁₄	hydrocarbon
cyclooctane	292-64-8	C₈H₁₆	hydrocarbon
methyl-cyclopentane	96-37-7	C₆H₁₂	hydrocarbon
ethyl-cyclopentane	1640-89-7	C₇H₁₄	hydrocarbon
methyl-cyclohexane	108-87-2	C₇H₁₄	hydrocarbon
ethyl-cyclohexane	1678-91-7	C₈H₁₆	hydrocarbon
octadecane	593-45-3	C₁₈H₃₈	hydrocarbon
isopropyl-cyclohexane	696-29-7	C₉H₁₈	hydrocarbon
2-methyl-hexane	591-76-4	C₇H₁₆	hydrocarbon
3-methyl-hexane	589-34-4	C₇H₁₆	hydrocarbon
1-pentene	109-67-1	C₅H₁₀	hydrocarbon
2-pentene (cis)	627-20-3	C₅H₁₀	hydrocarbon
2-pentene (trans)	646-04-8	C₅H₁₀	hydrocarbon
1-hexene	592-41-6	C₆H₁₂	hydrocarbon
1-heptene	592-76-7	C₇H₁₄	hydrocarbon
1-oktene	111-66-0	C₈H₁₆	hydrocarbon
1-nonene	124-11-8	C₉H₁₈	hydrocarbon
1-decene	872-05-9	C₁₀H₂₀	hydrocarbon
1-undecene	821-95-4	C₁₁H₂₂	hydrocarbon
1-dodecene	112-41-4	C₁₂H₂₄	hydrocarbon
2-methyl-1-butene	563-46-2	C₅H₁₀	hydrocarbon
3-methyl-1-butene	563-45-1	C₅H₁₀	hydrocarbon
isobutylene	115-11-7	C₄H₈	hydrocarbon
butadiene	106-99-0	C₄H₆	hydrocarbon
hexadiene	592-48-3	C₆H₁₀	hydrocarbon
isoprene	78-79-5	C₅H₈	hydrocarbon
benzene	71-43-2	C₆H₆	aromatic
ethyl benzene	100-41-4	C₈H₁₀	aromatic
cumene	98-82-8	C₉H₁₂	aromatic
n-butyl-benzene	104-51-8	C₁₀H₁₄	aromatic
iso-butyl-benzene	538-93-2	C₁₀H₁₄	aromatic
tert-butyl-benzene	98-06-6	C₁₀H₁₄	aromatic
o-xylene	95-47-6	C₈H₁₀	aromatic
m-xylene	108-38-3	C₈H₁₀	aromatic
p-xylene	106-42-3	C₈H₁₀	aromatic
n-propyl benzene	103-65-1	C₉H₁₂	aromatic
o-methyl ethyl benzene	611-14-3	C₉H₁₂	aromatic
m-methyl ethyl benzene	620-14-4	C₉H₁₂	aromatic
p-methyl ethyl benzene	622-96-8	C₉H₁₂	aromatic
naphthalene	91-20-3	C₁₀H₈	aromatic
alpha-methyl naphthalene	90-12-0	C₁₁H₁₀	aromatic
beta-methyl naphthalene	91-57-6	C₁₁H₁₀	aromatic
alpha-ethyl naphthalene	1127-76-0	C₁₂H₁₂	aromatic
beta-ethyl naphthalene	939-27-5	C₁₂H₁₂	aromatic
styrene	100-42-5	C₈H₈	aromatic
anthracene	120-12-7	C₁₄H₁₀	aromatic
phenanthrene	85-01-8	C₁₄H₁₀	aromatic
diphenyl	92-52-4	C₁₂H₁₀	aromatic
1,2,3-trimethyl benzene	526-73-8	C₉H₁₂	aromatic
1,2,4-trimethyl benzene	95-63-6	C₉H₁₂	aromatic
diphenyl methane	101-81-5	C₁₃H₁₂	aromatic
sec-butyl benzene	135-98-8	C₁₀H₁₄	aromatic
o-diethyl benzene	135-01-3	C₁₀H₁₄	aromatic
m-diethyl benzene	141-93-5	C₁₀H₁₄	aromatic
p-diethyl benzene	105-05-5	C₁₀H₁₄	aromatic
tetraline	119-64-2	C₁₀H₁₂	aromatic
n-propanol	71-23-8	C₃H₈O	alcohol
sec-butanol	78-92-2	C₄H₁₀O	alcohol
iso-butanol	78-83-1	C₄H₁₀O	alcohol
tert-butanol	75-65-0	C₄H₁₀O	alcohol
n-pentanol	71-41-0	C₅H₁₂O	alcohol
n-hexanol	111-27-3	C₆H₁₄O	alcohol
n-heptanol	111-70-6	C₇H₁₆O	hydrocarbon
n-octanol	111-87-5	C₈H₁₈O	hydrocarbon
n-nonanol	143-08-8	C₉H₂₀O	hydrocarbon
n-decanol	112-30-1	C₁₀H₂₂O	hydrocarbon
n-dodecanol	112-53-8	C₁₂H₂₆O	hydrocarbon
n-octadecanol	112-92-5	C₁₈H₃₈O	hydrocarbon
ethylene glycol	107-21-1	C₂H₆O₂	alcohol
propylene glycol	57-55-6	C₃H₈O₂	alcohol
glycerol	56-81-5	C₃H₈O₃	alcohol
cyclohexanol	108-93-0	C₆H₁₂O	alcohol
allyl alcohol	107-18-6	C₃H₆O	alcohol
n-propyl acetate	109-60-4	C₅H₁₀O₂	ester
iso-propyl acetate	108-21-4	C₅H₁₀O₂	ester
n-butyl acetate	123-86-4	C₆H₁₂O₂	ester
sec-butyl acetate	105-46-4	C₆H₁₂O₂	ester
iso-butyl acetate	110-19-0	C₆H₁₂O₂	ester
tert-butyl acetate	540-88-5	C₆H₁₂O₂	ester
methyl propionate	554-12-1	C₄H₈O₂	ester
ethyl propionate	105-37-3	C₅H₁₀O₂	ester
propyl propionate	106-36-5	C₆H₁₂O₂	ester
methyl butirate	623-42-7	C₅H₁₀O₂	ester
ethyl n-butirate	105-54-4	C₆H₁₂O₂	ester
propyl butirate	105-66-8	C₇H₁₄O₂	ester
vinyl acetate	108-05-4	C₄H₆O₂	ester
methyl-ethyl ketone	78-93-3	C₄H₈O	ketone
methyl-n-propyl ketone	107-87-9	C₅H₁₀O	ketone
methyl-iso-propyl ketone	563-80-4	C₅H₁₀O	ketone
diethyl ketone	96-22-0	C₅H₁₀O	ketone
methyl-n-butyl ketone	591-78-6	C₆H₁₂O	ketone
methyl-iso-butyl ketone	108-10-1	C₆H₁₂O	ketone
cyclopentanone	120-92-3	C₅H₈O	ketone
cyclohexanone	108-94-1	C₆H₁₀O	ketone
cycloheptanone	502-42-1	C₇H₁₂O	ketone
methyl-phenyl ketone	98-86-2	C₈H₈O	ketone, aromatic
dimethyl ether	115-10-6	C₂H₆O	ether
methyl-ethyl ether	540-67-0	C₃H₈O	ether
diethyl ether	60-29-7	C₄H₁₀O	ether
ethyl-n-propyl ether	628-32-0	C₅H₁₂O	ether
di-n-propyl ether	111-43-3	C₆H₁₄O	ether
di-isopropyl ether	108-20-3	C₆H₁₄O	ether
di-n-butyl ether	142-96-1	C₈H₁₆O	ether
tetrahydro pyran	142-68-7	C₅H₁₀O	ether
1,4-dioxane	123-91-1	C₄H₈O₂	ether
1,3-dioxane	505-22-6	C₄H₈O₂	ether
trioxane	110-88-3	C₃H₆O₃	ether
ethylene glycol dimethyl ether	110-71-4	C₄H₁₀O₂	ether
ethylene glycol diethyl ether	629-14-1	C₆H₁₄O₂	ether
1,3-dioxolane	646-06-0	C₃H₆O₂	ether
methyl-tert-butyl ether	1634-04-4	C₅H₁₃O	ether
diphenyl ether	101-84-8	C₁₂H₁₀O	aromatic, ether
anisole	100-66-3	C₇H₈O	ether, aromatic
phenetole	103-73-1	C₈H₁₀O	ether, aromatic
veratrol	91-16-7	C₈H₁₁O₂	ether, aromatic
methyl vinyl ether	107-25-5	C₃H₆O	ether
formaldehyde	50-00-0	CH₂O	aldehyde
n-propanal	123-38-6	C₃H₆O	aldehyde
n-butanal	123-72-8	C₄H₈O	aldehyde
i-butanal	78-84-2	C₄H₈O	aldehyde
n-pentanal	110-62-3	C₅H₁₀O	aldehyde
n-hexanal	66-25-1	C₆H₁₂O	aldehyde
glyceraldehyde	367-47-5	C₃H₆O₃	alcohol, aldehyde
benzaldehyde	100-52-7	C₇H₆O	aromatic, aldehyde
glycolic aldehyde	141-46-8	C₂H₄O₂	alcohol, aldehyde
succinic aldehyde	638-37-9	C₄H₆O₂	aldehyde
acetyl acetone	123-54-6	C₅H₈O₂	ketone
acrolein	107-02-8	C₃H₄O	aldehyde
methyl glyoxal	78-98-8	C₃H₄O₂	ketone, aldehyde
biacetyl	431-03-8	C₄H₆O₂	ketone
p-anisaldehyde	123-11-5	C₈H₈O₂	ether, aromatic
m-anisaldehyde	22924-15-8	C₈H₈O₂	ether, aromatic
n-propionitrile	107-12-0	C₃H₅N	nitrile
n-butironitrile	109-74-0	C₄H₇N	nitrile
ethyl chloride	75-00-3	C₂H₅Cl	halocarbon
1,1-dichloro ethane	75-34-3	C₂H₄Cl₂	halocarbon
1,2-dichloro ethane	107-06-2	C₂H₄Cl₂	halocarbon
1,1,2-trichloro ethane	79-00-5	C₂H₃Cl₃	halocarbon
vinyl chloride	75-01-4	C₂H₃Cl	halocarbon
1,1-dichloro ethylene	75-35-4	C₂H₂Cl₂	halocarbon
1,2-dichloro ethylene (cis)	156-59-2	C₂H₂Cl₂	halocarbon
1,2-dichloro ethylene (trans)	156-60-5	C₂H₂Cl₂	halocarbon
trichloro ethylene	79-01-6	C₂HCl₃	halocarbon
tetrachloro ethylene	127-18-4	C₂Cl₄	halocarbon
n-propyl chloride	540-54-5	C₃H₇Cl	halocarbon
isopropyl chloride	75-29-6	C₃H₇Cl	halocarbon
1,1-dichloro propane	78-99-9	C₃H₆Cl₂	halocarbon
1,2-dichloro propane	78-87-5	C₃H₆Cl₂	halocarbon
n-butyl chloride	109-69-3	C₄H₉Cl	halocarbon
sec-butyl chloride	78-86-4	C₄H₉Cl	halocarbon
iso-butyl chloride	513-36-0	C₄H₉Cl	halocarbon
tert-butyl chloride	507-20-0	C₄H₉Cl	halocarbon
n-pentyl chloride	543-59-9	C₅H₁₁Cl	halocarbon
n-hexyl chloride	544-10-5	C₆H₁₃Cl	halocarbon
benzyl chloride	100-44-7	C₇H₇Cl	aromatic, halocarbon
ethoxy ethanol	110-80-5	C₄H₁₀O₂	ether, alcohol
methoxyethanol	109-86-4	C₃H₈O₂	ether, alcohol
methoxypropanol	1320-67-8	C₄H₁₀O₂	ether, alcohol
diethylene glycol	111-46-6	C₄H₁₀O₃	alcohol, ether
triethylene glycol	112-27-6	C₆H₁₄O₄	alcohol, ether
di-1,2-propylene glycol (s,s)	110-98-5	C₆H₁₄O₃	alcohol, ether
di-1,2-propylene glycol (s,p)	106-62-7	C₆H₁₄O₃	alcohol, ether
butoxyethanol	111-76-2	C₆H₁₄O₂	ether, alcohol
tetraethylene glycol	112-60-7	C₈H₁₈O₄	alcohol, ether
iso-pentanol	123-51-3	C₅H₁₂O	alcohol
sec-pentanol	584-02-1	C₅H₁₂O	alcohol
phenylethanol	60-12-8	C₈H₁₀O	aromatic
1,4-butanediol	110-63-4	C₄H₁₀O₂	alcohol
1,5-pentanediol	111-29-5	C₅H₁₂O₂	alcohol
neopentyl glycol	126-30-7	C₅H₁₂O₂	alcohol
hexylene glycol	107-41-5	C₆H₁₄O₂	alcohol
tripropylene glycol	1638-16-0	C₉H₂₀O₄	alcohol, ether
diacetone alcohol	123-42-2	C₆H₁₂O₂	ketone, alcohol
propanoic acid	79-09-4	C₃H₆O₂	carboxylic acid
n-butanoic acid	107-92-6	C₄H₈O₂	carboxylic acid
iso-butanoic-acid	79-31-2	C₄H₈O₂	carboxylic acid
n-pentanoic acid	109-52-4	C₅H₁₀O₂	carboxylic acid
n-hexanoic acid	142-62-1	C₆H₁₂O₂	carboxylic acid
benzoic acid	65-85-0	C₇H₆O₂	aromatic, carboxylic acid
phenyl acetic acid	103-82-2	C₈H₈O₂	aromatic, carboxylic acid
n-decanoic-acid	334-48-5	C₁₀H₂₀O₂	hydrocarbon
stearic acid	57-11-4	C₁₈H₃₆O₂	hydrocarbon
palmitic acid	57-10-3	C₁₆H₃₂O₂	hydrocarbon
oleic acid	112-80-1	C₁₈H₃₄O₂	hydrocarbon
glycolic acid	79-14-1	C₂H₄O₃	alcohol, carboxylic acid
aspirin	50-78-2	C₉H₈O₄	ester, aromatic
oxalic acid	144-62-7	C₂H₂O₄	carboxylic acid
malonic acid	141-82-2	C₃H₄O₄	carboxylic acid
succinic acid	110-15-6	C₄H₆O₄	carboxylic acid
citric acid	77-92-9	C₆H₈O₇	carboxylic acid, alcohol
lactic acid	50-21-5	C₃H₆O₃	alcohol, carboxylic acid
acrilyc acid	79-10-7	C₃H₄O₂	carboxylic acid
malic acid	6915-15-7	C₄H₆O₅	carboxylic acid, alcohol
tartaric acid	133-37-9	C₄H₆O₆	carboxylic acid, alcohol
n-tetradecane	629-59-4	C₁₄H₃₀	hydrocarbon
limonene	138-86-3	C₁₀H₁₆	hydrocarbon
Cyclohexene	110-83-8	C₆H₁₀	hydrocarbon
Ibuprofen	15687-27-1	C₁₃H₁₈O₂	aromatic
Isooctane	540-84-1	C₈H₁₈	hydrocarbon
Menthol	89-78-1	C₁₀H₂₀O	hydrocarbon
Benzyl Alcohol	100-51-6	C₇H₈O	aromatic, alcohol
Methyl Benzoate	93-58-3	C₈H₈O₂	aromatic, ester
Cinnamaldehyde	104-55-2	C₉H₈O	aromatic
Citral	5392-40-5	C₁₀H₁₆O	aldehyde
Methyl stearate	112-61-8	C₁₉H₃₈O₂	hydrocarbon
2-Methyl tetrahydrofuran	96-47-9	C₅H₁₀O	ether
Diethylene glycol dimethyl ether	111-96-6	C₆H₁₄O₃	ether
Nitromethane	75-52-5	CH₃NO₂	nitro-compound

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Azeotropic data table

Components	Pure compound boiling point	Pure compound vapor pressure	Azeotropic temperature	Azeotropic vapor pressure	Azeotropic composition	Type of azeotropic point
---	K	bar	K	bar	mol fract.	---

CAS Registry Number is a Registered Trademark of the American Chemical Society.