- Diethyl ether (data page)
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This page provides supplementary chemical data on diethyl ether.Contents
Material Safety Data Sheet
The handling of this chemical may incur notable safety precautions. It is highly recommended that you seek the Material Safety Datasheet (MSDS) for this chemical from a reliable source such as SIRI, and follow its directions. MSDS for diethyl ether is available at Mallinckrodt Baker.
Structure and properties
Structure and properties Index of refraction, nD 1.3497 at 24.8°C Abbe number ? Dielectric constant, εr 4.34 ε0 at 20 °C
8.1 ε0 at –64°C
10.4 ε0 at –116°CBond strength ? Bond length ? Bond angle ? Magnetic susceptibility ? Surface tension 17.0 dyn/cm at 20°C Viscosity[1] 0.2950 mP·s at 0°C
0.2681 mP·s at 10°C
0.2448 mP·s at 20°C
0.2230 mP·s at 30°CThermodynamic properties
Phase behavior Triple point 156.92 K (–116.23 °C), ? Pa Critical point 467 K (194 °C), 3600 kPa Std enthalpy change
of fusion, ΔfusHo7.19 kJ/mol Std entropy change
of fusion, ΔfusSo46.6 J/(mol·K) Std enthalpy change
of vaporization, ΔvapHo27.530 kJ/mol at 11.85°C
27.247 kJ/mol at 22.48°CStd entropy change
of vaporization, ΔvapSo96.60 J/(mol·K) at 12° Solid properties Std enthalpy change
of formation, ΔfHosolid? kJ/mol Standard molar entropy,
Sosolid? J/(mol K) Heat capacity, cp ? J/(mol K) Liquid properties Std enthalpy change
of formation, ΔfHoliquid–271.2 kJ/mol Standard molar entropy,
Soliquid253.5 J/(mol K) Enthalpy of combustion, ΔcH o–2726.3 kJ/mol Heat capacity, cp 172.0 J/(mol K) Gas properties Std enthalpy change
of formation, ΔfHogas–252.7 kJ/mol Standard molar entropy,
Sogas342.2 J/(mol K) Heat capacity, cp 119.46 J/(mol K) at 25°C van der Waals' constants[2] a = 1761 L2 kPa/mol2
b = 0.1344 liter per moleVapor pressure of liquid
P in mm Hg 1 10 40 100 400 760 1520 3800 7600 15200 30400 45600 T in °C –74.3 –48.1 –27.7 –11.5 17.9 34.6 56.0 90.0 122.0 156.0 — — Table data obtained from CRC Handbook of Chemistry and Physics 44th ed.
Distillation data
Vapor-liquid Equilibrium for Diethyl Ether/Methanol[4]
P = 700 mmHgBP
Temp.
°C% by mole ether liquid vapor 55.98 3.90 25.16 51.78 7.32 38.58 50.00 9.24 43.84 48.95 10.84 47.73 46.20 14.02 54.04 45.70 14.81 55.30 42.25 21.30 63.51 41.65 21.74 64.43 41.15 23.83 65.74 39.90 33.87 72.47 39.45 29.24 69.58 38.40 33.17 71.72 33.40 60.85 83.07 32.90 77.07 86.59 32.48 82.84 88.57 32.02 97.70 97.66 30.50 95.02 94.58 Spectral data
UV-Vis λmax ? nm Extinction coefficient, ε ? IR Major absorption bands ? cm−1 NMR Proton NMR 3.479 ppm, 1.208 ppm[5] Carbon-13 NMR 65.97 ppm, 15.35 ppm[5] Other NMR data MS Masses of
main fragmentsReferences
- ^ Lange's Handbook of Chemistry, 10th ed. pp 1669-1674
- ^ Lange's Handbook of Chemistry 10th ed, pp 1522-1524
- ^ "Pure Component Properties" (Queriable database). Chemical Engineering Research Information Center. http://www.cheric.org/research/kdb/hcprop/cmpsrch.php. Retrieved 15 May 2007.
- ^ "Binary Vapor-Liquid Equilibrium Data" (Queriable database). Chemical Engineering Research Information Center. http://www.cheric.org/research/kdb/hcvle/hcvle.php. Retrieved 15 May 2007.
- ^ a b Spectral Database for Organic Compounds (SDBS)
- "NIST Standard Reference Database". http://webbook.nist.gov/chemistry/. Retrieved 15 May 2007.
Except where noted otherwise, data relate to standard ambient temperature and pressure.
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