Tables for Chemistry

Solvent polarity acc. Dimroth and Reichardt

Dimroth and Reichardt determined the wavenumber of the absorption maximum for a betain dye as a measure of the ionizing power of solvents. It is converted to kcal/mol (2.86x104λ-1) to give ET.
Normalizing to a scale from TMS (0) to water (1) gives ETN.
See e.g. IUPAC Gold Book.

Dimroth's ET values
NameCAS nrETETN
1,1,1,3,3,3-hexafluoro-2-propanol920-66-165.31.07
1,1,1-trichloroethane71-55-636.20.17
1,1,2,2-tetrachloroethane79-34-539.40.27
1,1-dichloroethane75-34-339.40.27
1,2,3-propanetriol56-81-557.00.81
1,2-diaminoethane107-15-342.00.35
1,2-dibromoethane106-93-438.30.23
1,2-dichlorobenzene95-50-138.00.23
1,2-dichloroethane107-06-241.30.33
1,2-dimethoxyethane110-71-438.20.23
1,3,3-trimethyl- 2-oxabicyclo[2,2,2]octane470-82-634.00.10
1,3,5-trimethylbenzene108-67-832.90.07
1,3-dichlorobenzene541-73-136.70.19
1,3-dioxolan-2-one96-49-148.60.55
1,3-dioxolane646-06-043.10.38
1,4-difluorobenzene540-36-336.40.18
1-bromobutane109-65-936.60.18
1-chlorobutane109-69-336.90.19
1-iodobutane542-69-834.90.13
2,2,2-trifluoroethanol75-89-859.80.90
2,6-dimethylpyridine108-48-536.90.19
2-bromopyridine109-04-641.30.33
2-butanol78-92-247.10.51
2-butanone78-93-341.30.33
2-chloroaniline95-51-245.50.46
2-chloroethanol107-07-0355.50.77
2-cyanopyridine100-70-944.20.42
2-fluoropyridine372-48-542.40.36
2-heptanone110-43-041.10.32
2-methyl-1-propanol78-83-148.60.55
2-methyl-2-butanol75-85-441.10.32
2-methyl-2-propanol75-65-043.70.40
2-methyltetrahydrofuran96-47-936.50.18
2-pentanone107-87-941.10.32
2-phenylacetonitrile140-29-442.70.37
2-phenylethanol60-12-849.50.58
2-propanol67-63-049.20.57
2-propanone67-64-142.20.35
2-propen-1-ol107-18-652.10.66
2-pyrrolidone616-45-548.30.54
3,4-dimethylpyridine583-58-438.90.25
3-bromopyridine626-55-139.70.28
3-chlorophenol108-43-060.80.93
3-hydroxytoluene108-39-452.80.68
3-methyl-1-butanol123-51-349.00.56
3-pentanone96-22-039.30.27
3-phenylpropanol1335-12-248.50.55
4-hydroxytoluene106-44-553.30.70
4-methyl-2-oxo-1,3-dioxolane108-32-746.60.49
4-methyl-2-pentanone108-10-139.40.27
4-methylpyridine108-89-439.60.27
acetic acid64-19-755.20.76
acetic anhydride108-24-743.90.41
acetonitrile75-05-845.60.46
acetophenone98-86-240.60.31
aniline62-53-344.30.42
benzene71-43-234.30.11
benzonitrile100-47-041.50.33
benzyl alcohol100-51-650.40.61
bis-(2-chloroethyl) ether111-44-441.60.34
bromobenzene108-86-136.60.18
butanenitrile109-74-043.10.38
butanoic acid107-92-654.40.73
butanol71-36-350.20.60
butyl acetate123-86-438.50.24
butylamine109-73-937.60.21
carbon disulfide75-15-032.80.06
chloroacetonitrile107-14-246.40.48
chlorobenzene108-90-736.80.19
cis-decaline493-01-631.20.02
cyclohexane110-82-730.90.01
cyclohexanol108-93-046.90.50
cyclohexanone108-94-139.80.28
cyclopentanone120-92-339.40.27
decane124-18-531.00.01
decanol112-30-147.70.52
di(2-methoxyethyl) ether111-96-638.60.24
di-n-butyl sulfide544-40-134.90.13
dibenzyl ether103-50-436.30.17
dibromomethane74-95-339.40.27
dibutyl ether142-96-133.00.07
dichloromethane75-09-240.70.31
diethyl carbonate105-58-837.00.19
diethyl ether60-29-734.50.12
diethyl sulfide352-93-235.70.15
diethylamine109-89-735.40.15
diiodomethane75-11-636.50.18
diisopropyl ether108-20-334.00.10
diisopropyl sulfide625-80-934.90.13
dimethyl carbonate616-38-638.80.25
dimethyl phthalate131-11-340.70.31
dimethyl sulfide75-18-326.8-0.12
dimethyl sulfoxide67-68-545.10.44
dimethylcyanamide1467-79-443.80.40
dioxane123-91-136.00.16
diphenyl ether101-84-835.50.15
dipropyl ether111-43-334.00.10
dodecane112-40-331.10.01
ethanediol107-21-156.30.79
ethanol64-17-551.90.65
ethyl acetate141-78-638.10.23
ethyl benzoate93-89-038.10.23
ethyl chloroacetate105-39-539.40.27
ethyl formate109-94-440.90.31
ethyl phenyl ether103-73-136.60.18
ethyl trichloroacetate515-84-438.70.25
fluorobenzene462-06-637.00.19
formamide75-12-756.60.80
formic acid64-18-657.70.83
furan110-00-936.00.16
heptane142-82-531.10.01
heptanoic acid111-14-855.00.75
hexafluorobenzene392-56-334.20.11
hexamethylphosphoramide680-31-940.90.31
hexane110-54-331.00.01
hexanoic acid142-62-155.40.76
hexanol111-27-348.80.56
iodobenzene591-50-436.20.17
m-xylene108-38-333.30.08
methanol67-56-155.40.76
methoxybenzene100-66-337.10.20
methyl acetate79-20-940.00.29
methyl benzoate93-58-338.10.23
methyl formate107-31-345.00.44
methyl propanoate554-12-138.00.23
methylbutane78-78-430.90.01
morpholine110-91-841.00.32
N,N,N',N'-tetramethylguanidine80-70-639.30.27
N,N,N',N'-tetramethylurea632-22-441.00.32
N,N-diethylacetamide685-91-642.40.36
N,N-diethylformamide617-84-541.80.34
N,N-dimethylacetamide127-19-543.70.40
N,N-dimethylaniline121-69-736.50.18
N,N-dimethylcyclohexylamine98-94-237.30.20
N,N-dimethylformamide68-12-243.80.40
N-methylacetamide79-16-352.00.66
N-methylaniline100-61-842.50.36
N-methylcaprolactame2556-73-241.60.34
N-methylformamide123-39-754.10.72
N-methylpyrrolidon872-50-442.20.35
nitrobenzene98-95-341.20.32
nitromethane75-52-546.30.48
octane111-65-931.10.01
octanol111-87-548.30.54
oxane142-68-736.60.18
oxolan-2-one96-48-044.30.42
p-xylene106-42-333.10.07
pentafluoropyridine700-16-336.30.17
pentamethylene sulfide1613-51-035.90.16
pentane109-66-031.10.01
pentanoic acid109-52-455.30.76
pentanol71-41-049.10.57
phenol108-95-253.40.70
piperidine110-89-435.50.15
propanenitrile107-12-043.60.40
propanoic acid79-09-455.00.75
propanol71-23-850.70.62
propyl acetate109-60-437.50.21
pyridine110-86-140.50.30
pyrrolidine123-75-139.10.26
quinoline91-22-539.40.27
sulfolane126-33-044.00.41
tetrachloroethene127-18-431.90.04
tetrachloromethane56-23-532.40.05
tetrahydrofuran109-99-937.40.21
tetramethylsilane75-76-330.70.00
thiolane110-01-036.70.19
thiolane-1-oxide1600-44-843.60.40
toluene108-88-333.90.10
trans-dichloroethene156-60-541.90.35
tribromomethane75-25-237.70.22
tributyl phosphate126-73-839.60.27
tributylamine102-82-932.10.04
trichloroethene79-01-635.90.16
trichloromethane67-66-339.10.26
triethyl phosphate78-40-041.70.34
triethylamine121-44-832.10.04
trimethyl phosphate512-56-143.60.40
vinyl benzene100-42-534.80.13
water7732-18-563.11.00