Ethanol (data page)

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Ethanol (data page)
Identifiers
CAS number64-17-5 YesY
PubChem702
ChemSpider682 YesY
UNII3K9958V90M YesY
EC number200-578-6
UN number1170
DrugBankDB00898
KEGGD00068 YesY
MeSHEthanol
ChEBICHEBI:16236 YesY
ChEMBLCHEMBL545 YesY
RTECS numberKQ6300000
ATC codeD01AE06,D08AX08, V03AB16, V03AZ01
Beilstein Reference1718733
Gmelin Reference787
3DMetB01253
Jmol-3D imagesImage 1
Properties
Molecular formulaC2H6O
Molar mass46.07 g mol−1
AppearanceColorless liquid
Density0.789 g/cm3 (at 20°C)
Melting point

−114 °C, 159 K, -173 °F

Boiling point

78.37 °C, 352 K, 173 °F

log P-0.18
Vapor pressure5.95 kPa (at 20 °C)
Acidity (pKa)15.9[2]
Basicity (pKb)-1.9
Refractive index (nD)1.361
Viscosity0.0012 Pa s (at 20 °C), 0.001074 Pa s (at 25 °C)[3]
Dipole moment1.69 D[4]
Pharmacology
Routes of
administration
Intramuscular

Intravenous
Oral
Topical

MetabolismHepatic
Hazards
EU Index603-002-00-5
EU classificationFlammable F
R-phrasesR11
S-phrases(S2), S7, S16
NFPA 704
NFPA 704.svg
3
2
0
Flash point13–14 °C
Autoignition
temperature
363 °C[5]
LD505628 mg kg−1 (oral, rat)
 YesY (verify) (what is: YesY/N?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references
 
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Ethanol (data page)
Identifiers
CAS number64-17-5 YesY
PubChem702
ChemSpider682 YesY
UNII3K9958V90M YesY
EC number200-578-6
UN number1170
DrugBankDB00898
KEGGD00068 YesY
MeSHEthanol
ChEBICHEBI:16236 YesY
ChEMBLCHEMBL545 YesY
RTECS numberKQ6300000
ATC codeD01AE06,D08AX08, V03AB16, V03AZ01
Beilstein Reference1718733
Gmelin Reference787
3DMetB01253
Jmol-3D imagesImage 1
Properties
Molecular formulaC2H6O
Molar mass46.07 g mol−1
AppearanceColorless liquid
Density0.789 g/cm3 (at 20°C)
Melting point

−114 °C, 159 K, -173 °F

Boiling point

78.37 °C, 352 K, 173 °F

log P-0.18
Vapor pressure5.95 kPa (at 20 °C)
Acidity (pKa)15.9[2]
Basicity (pKb)-1.9
Refractive index (nD)1.361
Viscosity0.0012 Pa s (at 20 °C), 0.001074 Pa s (at 25 °C)[3]
Dipole moment1.69 D[4]
Pharmacology
Routes of
administration
Intramuscular

Intravenous
Oral
Topical

MetabolismHepatic
Hazards
EU Index603-002-00-5
EU classificationFlammable F
R-phrasesR11
S-phrases(S2), S7, S16
NFPA 704
NFPA 704.svg
3
2
0
Flash point13–14 °C
Autoignition
temperature
363 °C[5]
LD505628 mg kg−1 (oral, rat)
 YesY (verify) (what is: YesY/N?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

This page provides supplementary chemical data on ethanol. Except where noted otherwise, data relate to standard ambient temperature and pressure.

Material Safety Data Sheet[edit]

The handling of this chemical may incur notable safety precautions. It is highly recommend that you seek the Material Safety Datasheet (MSDS) for this chemical from a reliable source and follow its directions.

Structure and properties[edit]

Structure and properties
Index of refraction, n251.361
Dielectric constant, εr24.3 ε0 at 25 °C
Bond strength ?
Bond length ?
Bond angle ?
Magnetic susceptibility[6]5.8·10−7 (cgs units, volume)
Surface tension22.39 dyn/cm at 25 °C
Viscosity[7]
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
0.949 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[edit]

Phase behavior
Triple point150 K (−123 °C), 0.00043 Pa
Critical point514 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
+38.56 kJ/mol
Std entropy change
of vaporization
, ΔvapSo
109.67 J/(mol·K)
Molal freezing point constant–1.99 °C kg/mol
Molal boiling point constant1.19 °C kg/mol
Solid properties
Std enthalpy change
of formation
, ΔfHosolid
–277.7 kJ/mol
Standard molar entropy,
Sosolid
160.7 J/(mol K)[8]
Heat capacity, cp111.46 J/(mol K) [8]
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, cp112.4 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,[9][10] cp78.28 J/(mol K) at 90 °C
87.53 J/(mol K) at 110-220 °C
Heat capacity ratio,[9][10]
γ = cp/cv
1.13 at 90 °C
van der Waals' constants[11]a = 1217.9 L2 kPa/mol2
b = 0.08407 liter per mole

Spectral data[edit]

UV-Vis
λmax ? nm
Extinction coefficient, ε ?
IR
Major absorption bands[12]
(liquid film)
Wave numbertransmittance
880 cm−122%
1048 cm−16%
1089 cm−119%
1275 cm−152%
1329 cm−144%
1384 cm−132%
1418 cm−133%
1650 cm−126%
1926 cm−162%
2899 cm−112%
2930 cm−113%
2977 cm−14%
NMR
Proton NMR 
Carbon-13 NMRhttp://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[edit]

P in mm Hg11040100400760152038007600152003040045600
P in Pa133.31333533313332533291013252026505066251013250202650040530006079501
T in °C–31.3–2.319.034.963.578.497.5126.0151.8183.0218.0242.0
T in K241.85270.85292.15308.05336.65351.55370.65399.15424.95456.15491.15515.15
Ethanol vapor pressure vs. temperature. Uses formula: \scriptstyle P_{mmHg} = 10^{8.04494 - \frac {1554.3} {222.65+T}} from Lange's Handbook of Chemistry 10th ed.
Log10 of ethanol vapor pressure vs. temperature. Uses formula: \scriptstyle \log_{10} {P_{mmHg}} = 8.04494 - \frac {1554.3} {222.65+T}

Density of ethanol at various temperatures (kg/l or g/cm3)[edit]

Data obtained from Lange's Handbook of Chemistry, 10th ed.

3 °C0.8037416 °C0.7928329 °C0.78182
4 °C0.8029017 °C0.7919830 °C0.78097
5 °C0.8020718 °C0.7911431 °C0.78012
6 °C0.8012319 °C0.7902932 °C0.77927
7 °C0.8003920 °C0.7894533 °C0.77841
8 °C0.7995621 °C0.7886034 °C0.77756
9 °C0.7987222 °C0.7877535 °C0.77671
10 °C0.7978823 °C0.7869136 °C0.77585
11 °C0.7970424 °C0.7860637 °C0.77500
12 °C0.7962025 °C0.7852238 °C0.77414
39 °C0.7732940 °C0.77244

These data correlate as Density (g/cm3) = -8.461834E-4 T( °C) + 0.8063372 with an R2 coefficient of determination of 0.99999.

Properties of aqueous ethanol solutions[edit]

Data obtained from Lange's Handbook of Chemistry, 10th ed. The annotation, d a °C/b °C, indicates density of solution at temperature a divided by density of pure water at temperature b.

% wt
ethanol
% vol
ethanol
grams
ethanol
per 100 cc
15.56 °C
d 10 °C/4 °Cd 20 °C/4 °Cd 25 °C/4 °Cd 30 °C/4 °Cd 20 °C/20 °Cd 25 °C/25 °Cfreezing
temp.
0.00.00.00.999730.998230.997080.995681.000001.000000 °C
1.00.997850.996360.995200.993790.998130.99811
2.00.996020.994530.993360.991940.996290.99627
2.53.130.99363–1 °C
3.00.994260.992750.991570.990140.994510.99447
4.05.003.970.992580.991030.989840.988390.992790.99274
4.86.004.760.98971–2 °C
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 °C
7.00.988010.986270.985000.983470.988020.98788
8.00.986600.984780.983460.981890.986530.98634
9.00.985240.983310.981930.980310.985050.98481
10.012.409.840.983930.981870.980430.975750.983610.98330
11.00.982670.980470.978970.977230.982210.98184
11.314.011.110.98006–5 °C
12.00.981450.979100.977530.975730.980840.98039
13.00.980260.977750.976110.974240.979480.97897
13.7817.0013.49–6.1 °C
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 °C
17.00.975830.972590.970620.968440.974310.97346
17.521.50.97194–8.7 °C
18.022.1017.540.974730.971290.969230.966970.973010.97207
18.823.10.97024–9.4 °C
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 °C
21.00.971390.967290.964950.962420.969010.96778
22.00.970240.965920.963480.960870.967630.96630
22.1127.0021.430.96578–12.2 °C
23.00.969070.964530.961990.959290.966240.96481
24.00.967870.963120.960480.957690.964830.96329
24.229.50.96283–14.0 °C
25.030.4024.120.966650.961680.958950.956070.963390.96176
26.00.965390.960200.957380.954220.961900.96018
26.732.40.95914–16.0 °C
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 °C
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 °C
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 °C
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 °C
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 °C
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
61.00.898980.888820.884660.880440.890400.88725
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 °C
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
87.00.834410.825540.821480.817080.827290.82389
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 °C
% wt
ethanol
% vol
ethanol
grams
ethanol
per 100 cc
15.56 °C
d 10 °C/4 °Cd 20 °C/4 °Cd 25 °C/4 °Cd 30 °C/4 °Cd 20 °C/20 °Cd 25 °C/25 °Cfreezing
temp.

Boiling points of aqueous solutions[edit]

Data obtained from CRC Handbook of Chemistry 44th ed., p2391

BP °CWeight % ethanol   BP °CWeight % 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

References[edit]

  1. ^ "Ethanol – Compound Summary". The PubChem Project. USA: National Center for Biotechnology Information. 
  2. ^ Ballinger, P.; Long, F. A. (1960). Journal of the American Chemical Society 82 (4): 795. doi:10.1021/ja01489a008. 
  3. ^ Lide, David R., ed. (2012). CRC Handbook of Chemistry and Physics (92 ed.). Boca Raton, FL.: CRC Press/Taylor and Francis. pp. 6–232. 
  4. ^ Lide, David R., ed. (2008). CRC Handbook of Chemistry and Physics (89 ed.). Boca Raton: CRC Press. pp. 9–55. 
  5. ^ "Fuels and Chemicals – Autoignition Temperatures". engineeringtoolbox.com 
  6. ^ NMR-002: Sample Devices and Magnetic Susceptibility
  7. ^ "Pure Component Properties" (Queriable database). Chemical Engineering Research Information Center. Retrieved 12 May 2007. 
  8. ^ a b Atkins, Peter (2010). Atkins' Physical Chemistry. Oxford University Press. pp. 913–947. 
  9. ^ a b Lange's Handbook of Chemistry 10th ed, pp 1525-1528
  10. ^ a b CRC Handbook of Chemistry and Physics 44th ed. pp 2582-2584
  11. ^ Lange's Handbook of Chemistry 10th ed, pp 1522-1524
  12. ^ "Spectral Database for Organic Compounds" (Queriable database). Advanced Industrial Science and Technology. Retrieved 9 June 2007.