:Diethyl ether (data page)

This page provides supplementary chemical data on diethyl ether.

== 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 [https://web.archive.org/web/20070630043133/http://siri.org/msds/index.php SIRI], and follow its directions. MSDS for diethyl ether is available at [https://web.archive.org/web/20120328181719/http://hazard.com/msds/mf/baker/baker/files/e2340.htm Mallinckrodt Baker].

== Structure and properties ==

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! {{chembox header}} | Structure and properties

Index of refraction, n_D

| 1.3497 at 24.8 °C

Abbe number

Dielectric constant, ε_r

| 4.34 ε₀ at 20 °C
8.1 ε₀ at –64 °C
10.4 ε₀ at –116 °C

Bond strength

| ?

Bond length

| ?

Bond angle

| ?

Magnetic susceptibility

| ?

Surface tension

| 17.0 dyn/cm at 20 °C

ViscosityLange's Handbook of Chemistry, 10th ed. pp. 1669–1674

| 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 °C

== Thermodynamic properties ==

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Triple point \| 156.92 K (–116.23 °C), ? Pa
Critical point \| 467 K (194 °C), 3600 kPa
Std enthalpy change of fusion, Δ_fusH^o \| 7.19 kJ/mol
Std entropy change of fusion, Δ_fusS^o \| 46.6 J/(mol·K)
Std enthalpy change of vaporization, Δ_vapH^o \| 27.530 kJ/mol at 11.85 °C 27.247 kJ/mol at 22.48 °C
Std entropy change of vaporization, Δ_vapS^o \| 96.60 J/(mol·K) at 12°
{{chembox header}} \| Solid properties
Std enthalpy change of formation, Δ_fH^o_solid \| ? kJ/mol
Standard molar entropy, S^o_solid \| ? J/(mol K)
Heat capacity, c_p \| ? J/(mol K)
{{chembox header}} \| Liquid properties
Std enthalpy change of formation, Δ_fH^o_liquid \| –271.2 kJ/mol
Standard molar entropy, S^o_liquid \| 253.5 J/(mol K)
Enthalpy of combustion, Δ_cH^o \| –2726.3 kJ/mol
Heat capacity, c_p \| 172.0 J/(mol K)
{{chembox header}} \| Gas properties
Std enthalpy change of formation, Δ_fH^o_gas \| –252.7 kJ/mol
Standard molar entropy, S^o_gas \| 342.2 J/(mol K)
Heat capacity, c_p \| 119.46 J/(mol K) at 25 °C
van der Waals' constantsLange's Handbook of Chemistry 10th ed, pp. 1522–1524 \| a = 1761 L² kPa/mol² b = 0.1344 liter per mole

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! {{chembox header}} | Phase behavior

Triple point

| 156.92 K (–116.23 °C), ? Pa

Critical point

| 467 K (194 °C), 3600 kPa

Std enthalpy change
of fusion, Δ_fusH^o

| 7.19 kJ/mol

Std entropy change
of fusion, Δ_fusS^o

| 46.6 J/(mol·K)

Std enthalpy change
of vaporization, Δ_vapH^o

| 27.530 kJ/mol at 11.85 °C
27.247 kJ/mol at 22.48 °C

Std entropy change
of vaporization, Δ_vapS^o

| 96.60 J/(mol·K) at 12°

{{chembox header}} | Solid properties

Std enthalpy change
of formation, Δ_fH^o_solid

| ? kJ/mol

Standard molar entropy,
S^o_solid

| ? J/(mol K)

Heat capacity, c_p

| ? J/(mol K)

{{chembox header}} | Liquid properties

Std enthalpy change
of formation, Δ_fH^o_liquid

| –271.2 kJ/mol

Standard molar entropy,
S^o_liquid

| 253.5 J/(mol K)

Enthalpy of combustion, Δ_cH^o

| –2726.3 kJ/mol

Heat capacity, c_p

| 172.0 J/(mol K)

{{chembox header}} | Gas properties

Std enthalpy change
of formation, Δ_fH^o_gas

| –252.7 kJ/mol

Standard molar entropy,
S^o_gas

| 342.2 J/(mol K)

Heat capacity, c_p

| 119.46 J/(mol K) at 25 °C

van der Waals' constantsLange's Handbook of Chemistry 10th ed, pp. 1522–1524

| a = 1761 L² kPa/mol²
b = 0.1344 liter per mole

Vapor pressure of liquid

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{{chembox header}} \| P in mm Hg	1	10	40	100	400	760	1520	3800	7600	15200	30400	45600
{{chembox header}} \| 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.

Image:LogDiethylEtherVaporPressure.png{{Clear}}

Distillation data

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bgcolor="#D0D0D0" align="center" colspan="3" \| Vapor-liquid Equilibrium for Diethyl Ether/Methanol{{Cite web\|url=http://www.cheric.org/research/kdb/hcvle/hcvle.php\|title=Binary Vapor-Liquid Equilibrium Data\|publisher=Chemical Engineering Research Information Center\|format=Queriable database\|accessdate=15 May 2007}} P = 700 mmHg
{{chembox header}} ! rowspan="2" \| BP Temp. °C ! colspan="2" \| % by mole ether
{{chembox header}} ! 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 ==

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λ_max \| ? nm
Extinction coefficient, ε \| ?
{{chembox header}} \| IR
Major absorption bands \| ? cm⁻¹
{{chembox header}} \| NMR
Proton NMR \| 3.479 ppm, 1.208 ppmSpectral Database for Organic Compounds (SDBS)
Carbon-13 NMR \| 65.97 ppm, 15.35 ppm
Other NMR data \|
{{chembox header}} \| MS
Masses of main fragments \|

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! {{chembox header}} | UV-Vis

λ_max

| ? nm

Extinction coefficient, ε

| ?

{{chembox header}} | IR

Major absorption bands

| ? cm⁻¹

{{chembox header}} | NMR

Proton NMR

| 3.479 ppm, 1.208 ppmSpectral Database for Organic Compounds (SDBS)

Carbon-13 NMR

| 65.97 ppm, 15.35 ppm

Other NMR data

{{chembox header}} | MS

Masses of
main fragments

References

{{Cite journal|url=http://webbook.nist.gov/chemistry/|title=NIST Standard Reference Database|year=1997 |doi=10.18434/T4D303 |accessdate=15 May 2007|last1=Linstrom |first1=Peter |publisher=National Institute of Standards and Technology }}

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