This page provides supplementary chemical data on ethanol.

Material Safety Data Sheet

External MSDS

Structure and properties

Structure and properties
Index of refraction, n25 1.361
Dielectric constant, εr 24.3 ε0 at 20 °C
Bond strength  ?
Bond length  ?
Bond angle  ?
Magnetic susceptibility[1] 5.8×10−7 (cgs units, volume)
Surface tension 22.39 dyn/cm at 25 °C
Thermal conductivity[2] 0.1660 W m−1 K−1 (saturated liquid at 300 K)
Viscosity[3]
6.285 mPa·sat −50 °C
4.656 mPa·sat −40 °C
3.530 mPa·sat −30 °C
2.731 mPa·sat −20 °C
2.419 mPa·sat −15 °C
2.151 mPa·sat −10 °C
1.920 mPa·sat −5 °C
1.720 mPa·sat 0 °C
1.546 mPa·sat 5 °C
1.394 mPa·sat 10 °C
1.261 mPa·sat 15 °C
1.144 mPa·sat 20 °C
1.040 mPa·sat 25 °C
0.948 mPa·sat 30 °C
0.794 mPa·sat 40 °C
0.670 mPa·sat 50 °C
0.570 mPa·sat 60 °C
0.487 mPa·sat 70 °C
0.452 mPa·sat 75 °C

Thermodynamic properties

Phase behavior
Triple point 150 K (123 °C), 0.00043 Pa
Critical point 514 K (241 °C), 63 bar
Std enthalpy change
of fusion
, ΔfusHo
+4.9 kJ/mol
Std entropy change
of fusion
, ΔfusSo
+31 J/(mol·K)
Std enthalpy change
of vaporization
, ΔvapHo
+42.3±0.4 kJ/mol[4]
Std entropy change
of vaporization
, ΔvapSo
109.67 J/(mol·K)
Molal freezing point constant −1.99 °C kg/mol
Solid properties
Std enthalpy change
of formation
, ΔfHosolid
−277.7 kJ/mol
Standard molar entropy,
Sosolid
160.7 J/(mol K)[5]
Heat capacity, cp 111.46 J/(mol K)[5]
Liquid properties
Std enthalpy change
of formation
, ΔfHoliquid
277.38 kJ/mol
Standard molar entropy,
Soliquid
159.9 J/(mol K)
Enthalpy of combustion, ΔcHo −1370.7 kJ/mol
Heat capacity, cp 112.4 J/(mol K)
Gas properties
Std enthalpy change
of formation
, ΔfHogas
235.3 kJ/mol
Standard molar entropy,
Sogas
283 J/(mol K)
Heat capacity,[6][7] cp 78.28 J/(mol K) at 90 °C
87.53 J/(mol K) at 110-220 °C
Heat capacity ratio,[6][7]
γ = cp/cv
1.13 at 90 °C
van der Waals' constants[8] a = 1217.9 L2 kPa/mol2
b = 0.08407 L/mol

Spectral data

UV-Vis
λmax  ? nm
Extinction coefficient, ε  ?
IR
Major absorption bands[9]
(liquid film)
Wave numbertransmittance
880 cm122%
1048 cm16%
1089 cm119%
1275 cm152%
1329 cm144%
1384 cm132%
1418 cm133%
1650 cm126%
1926 cm162%
2899 cm112%
2930 cm113%
2977 cm14%
NMR
Proton NMR  
Carbon-13 NMR http://riodb01.ibase.aist.go.jp/sdbs/cgi-bin/IMG.cgi?fname=CDS00245&imgdir=cdsW;
Other NMR data  
MS
Masses of
main fragments
 

Vapor pressure of liquid

P in mm Hg 110401004007601,5203,8007,60015,20030,40045,600
P in Pa 133.31,3335,33313,33253,329101,325202,650506,6251,013,2502,026,5004,053,0006,079,501
T in °C −31.3−2.319.034.963.578.497.5126.0151.8183.0218.0242.0
T in K 241.85270.85292.15308.05336.65351.55370.65399.15424.95456.15491.15515.15
Ethanol vapor pressure vs. temperature. Uses formula [10]
Log10 of ethanol vapor pressure vs. temperature. Uses formula

Density of ethanol at various temperatures

Data obtained from Lange 1967

T °Cρ, g/cm3T °Cρ, g/cm3T °Cρ, g/cm3
30.80374160.79283290.78182
40.80290170.79198300.78097
50.80207180.79114310.78012
60.80123190.79029320.77927
70.80039200.78945330.77841
80.79956210.78860340.77756
90.79872220.78775350.77671
100.79788230.78691360.77585
110.79704240.78606370.77500
120.79620250.78522380.77414
390.77329400.77244

These data correlate as ρ [g/cm3] = −8.461834×10−4 T [°C] + 0.8063372 with an R2 = 0.99999.

Properties of aqueous ethanol solutions

Data obtained from Lange 1967

Mass fraction,
 %
Volume concentration,
 %
Mass concentration, g/(100 ml) at 15.56 °C Density relative to 4 °C water Density at 20 °C relative to 20 °C water Density at 25 °C relative to 25 °C water Freezing temperature,
°C
10 °C20 °C25 °C30 °C
0.00.00.00.999730.998230.997080.995681.000001.000000
1.00.997850.996360.995200.993790.998130.99811
2.00.996020.994530.993360.991940.996290.99627
2.53.130.99363−1
3.00.994260.992750.991570.990140.994510.99447
4.05.003.970.992580.991030.989840.988390.992790.99274
4.86.004.760.98971−2
5.00.990980.989380.988170.986700.991130.99106
5.056.305.000.98930
6.00.989460.987800.986560.985070.989550.98945
6.88.470.98658−3
7.00.988010.986270.985000.983470.988020.98788
8.00.986600.984780.983460.981890.986530.98634
9.00.985240.983310.981930.980310.985050.98481
10.012.409.840.983930.981870.980430.978750.983610.98330
11.00.982670.980470.978970.977230.982210.98184
11.314.011.110.98006−5
12.015.00.981450.979100.977530.975730.980840.98039
13.00.980260.977750.976110.974240.979480.97897
13.7817.0013.49−6.1
14.00.979110.976430.974720.972780.978160.97757
15.00.978000.975140.973340.971330.976870.97619
15.0218.5014.680.97511
16.00.976920.973870.971990.969900.975600.97484
16.420.20.97336−7.5
17.00.975830.972590.970620.968440.974310.97346
17.521.50.97194−8.7
18.022.1017.540.974730.971290.969230.966970.973010.97207
18.823.10.97024−9.4
19.00.973630.969970.967820.965470.971690.97065
20.00.972520.968640.966390.963950.970360.96922
20.0124.5019.440.96863
20.324.80.96823−10.6
21.00.971390.967290.964950.962420.969010.96778
22.00.970240.965920.963480.960870.967630.96630
22.1127.0021.430.96578−12.2
23.00.969070.964530.961990.959290.966240.96481
24.00.967870.963120.960480.957690.964830.96329
24.229.50.96283−14.0
25.030.4024.120.966650.961680.958950.956070.963390.96176
26.00.965390.960200.957380.954220.961900.96018
26.732.40.95914−16.0
27.00.964060.958670.955760.952720.960370.95856
28.033.9026.900.962680.957100.954100.950980.958800.95689
29.00.961250.955480.952410.949220.957170.95520
29.936.10.95400−18.9
30.036.2028.730.959770.953820.950670.947410.955510.95345
31.00.958230.952120.948900.945570.953810.95168
32.00.956650.950380.947090.943700.952070.94986
33.00.955020.948600.945250.941800.950280.94802
33.840.50.94715−23.6
34.00.953340.946790.943370.939860.948470.94613
35.00.951620.944940.941460.937900.946620.94422
35.0441.9033.250.94486
36.00.949860.943060.939520.935910.944730.94227
37.00.948050.941140.937560.933900.942810.94031
38.00.946200.939190.935560.931860.940860.93830
39.046.30.944310.937200.933530.929790.938860.93626−28.7
40.00.942380.935180.931480.927700.936840.93421
40.0447.4037.610.93510
41.00.940420.933140.929400.925580.934790.93212
42.00.938420.931070.927290.923440.932720.93001
43.00.936390.928970.925160.921280.930620.92787
44.00.934330.926850.923010.919100.928490.92571
45.00.932260.924720.920850.916920.926360.92355
45.3153.0042.070.92406
46.00.930170.922570.918680.914720.924210.92137
46.353.80.92193−33.9
47.00.928060.920410.916490.912500.922040.91917
48.00.925930.918230.914290.910280.919860.91697
49.00.923790.916040.912080.908050.917660.91475
50.00.921620.913840.909850.905800.915460.91251
50.1658.046.040.91349
51.00.919430.911600.907600.903530.913220.91026
52.00.917230.909360.905240.901250.910970.90799
53.00.915020.907110.903070.898960.908720.90571
54.00.912790.904850.900790.896670.906450.90343
55.00.910550.902580.898500.894370.904180.90113
55.1663.050.000.90220
56.00.908310.900310.896210.892060.901910.89833
56.163.60.90008−41.0
57.00.906070.898030.893920.889750.899620.89654
58.00.903810.895740.891620.887440.897330.89423
59.00.901540.893440.889310.885120.895020.89191
60.00.899270.891130.886990.882780.892710.88959
60.3368.053.980.89038
61.00.896980.888820.884660.880440.890400.88725
62.00.894680.886500.882330.878090.888070.88491
63.00.892370.884170.879980.875740.885740.88256
64.00.890060.881830.877630.873370.883390.88020
65.00.887740.879480.875270.871000.881040.87783
66.00.885410.877130.872910.868630.878690.87547
67.00.883080.874770.870540.866250.876320.87309
68.00.880710.872410.868170.863870.873960.87071
69.00.878390.870040.865790.861480.871580.86833
70.00.876020.867660.863400.859080.869200.86593
71.00.873650.865270.861000.856670.866800.86352
71.978.30.86311−51.3
72.00.871270.862870.858590.854260.864400.86110
73.00.868880.860470.856180.851840.862000.85869
74.00.866480.858060.853760.849410.859580.85626
75.00.864080.855640.851350.846980.857160.85383
76.00.861680.853220.848910.844550.854730.85140
77.00.859270.850790.846470.842110.852300.84895
78.00.856850.848350.844030.839660.849850.84650
79.00.854220.845900.841580.837200.847400.84404
80.00.851970.843440.839110.834730.844940.84157
81.00.849500.840960.836640.832240.842450.83909
82.00.847020.838480.834150.829740.839970.83659
83.00.844530.835990.831640.827240.837470.83408
84.00.842030.833480.829130.824730.834960.83156
85.00.839510.830950.826600.822200.832420.82902
86.00.836970.828400.824050.819650.829870.82646
87.00.834410.825830.821480.817080.827290.82389
88.00.831810.823230.818880.814480.824690.82128
89.00.829190.820620.816260.811860.822070.81865
90.00.826540.817970.813620.809220.819420.81600
91.0094.0074.620.823860.815290.810940.806550.816740.81331
92.00.821140.812570.808230.803840.814010.81060
93.00.818390.809830.805490.801110.811270.80785
94.00.815610.807050.802720.798350.808480.80507
95.00.812780.804240.799910.795550.805670.80225
96.00.809910.801380.797060.792710.802800.79939
97.00.806980.798460.794150.789810.799880.79648
98.00.803990.795470.791170.786840.796880.79349
99.00.800940.792430.788140.783820.793830.79045
100.0100.079.390.797840.789340.785060.780750.790740.78736−114.3
Mass fraction,
 %
Volume concentration,
 %
Mass concentration, g/(100 ml) at 15.56 °C Density relative to 4 °C water Density at 20 °C relative to 20 °C water Density at 25 °C relative to 25 °C water Freezing temperature,
°C
10 °C20 °C25 °C30 °C

Boiling points of aqueous solutions

Data obtained from CRC Handbook of Chemistry (Page 2117)[7]:2391

BP °C Weight % ethanol     BP °C Weight % ethanol
liquidvaporliquidvapor
78.195.595.5    
78.2919286.51871
78.4858987.01770
78.6828887.51669
78.8808788.01568
79.0788688.51367
79.2768589.01265
79.4748589.51163
79.6728490.01061
79.8698490.51059
80.0678391.0957
80.2648391.5855
80.4628292.0853
80.6598292.5751
80.8568193.0649
81.0538193.5646
81.2508094.0544
81.4478094.5542
81.6458095.0439
81.8437995.5436
82.0417996.0333
82.5367896.5330
83.0337897.0227
83.5307797.5223
84.0277798.0119
84.5257598.5115
85.0237499.0< 110
85.5217399.5< 15
86.02072100.000

Azeotropic mixture

Charts

Thermophysical properties of mixtures of ethanol with water and dodecane
Excess volume of the mixture of ethanol and water (volume contraction) Heat of mixing of the mixture of ethanol and water Vapor–liquid equilibrium of the mixture of ethanol and water (including azeotrope)
Solid–liquid equilibrium of the mixture of ethanol and water (including eutecticum) Miscibility gap in the mixture of dodecane and ethanol
  This box:   

References

  1. NMR-002: Sample Devices and Magnetic Susceptibility
  2. Touloukian, Y.S., Liley, P.E., and Saxena, S.C. Thermophysical properties of matter - the TPRC data series. Volume 3. Thermal conductivity - nonmetallic liquids and gases. Data book. 1970.
  3. "Pure Component Properties" (Queriable database). Chemical Engineering Research Information Center. Retrieved 12 May 2007.
  4. "Ethanol". webbook.nist.gov. Retrieved 7 December 2021.
  5. 1 2 Atkins, Peter; de Paula, Julio (2010). Atkins' Physical Chemistry (9th ed.). Oxford: OUP. pp. 913–947. ISBN 978-0-19-954337-3.
  6. 1 2 Lange 1967, pp. 1525–1528.
  7. 1 2 3 Hodgman, Charles D; Weast, Robert C; Shankland, Robert S; Selby, Samuel M (1963). CRC Handbook of chemistry and physics : a ready-reference book of chemical and physical data (44th ed.). Cleveland Ohio: The Chemical Rubber Publishing. pp. 2582–2584.
  8. Lange 1967, pp. 1522–1524.
  9. "Spectral Database for Organic Compounds" (Queriable database). Advanced Industrial Science and Technology. Retrieved 9 June 2007.
  10. Lange 1967.
  • Lange, Norbert Adolph (1967). John Aurie Dean (ed.). Lange's Handbook of Chemistry (10th ed.). McGraw-Hill.
  • Linstrom, Peter J.; Mallard, William G. (eds.); NIST Chemistry WebBook, NIST Standard Reference Database Number 69, National Institute of Standards and Technology, Gaithersburg (MD)


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