Nitromethane (data page)

This page provides supplementary chemical data on nitromethane.

== Material Safety Data Sheet ==

The handling of this chemical may incur notable safety precautions. MSDS is available from Mallinckrodt Baker.[http://hazard.com/msds/mf/baker/baker/files/n5740.htm Mallinckrodt Baker]

== Structure and properties ==

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! {{chembox header}} | Structure and properties

Index of refraction, n_D

| 1.3817 at 20 °C Haynes, p. 3.414

Abbe number

Dielectric constant, ε_r

| 37.27 ε₀ at 20 °C Haynes, p. 6189

Bond strength

| ?

Bond length

| ?

Bond angle

| ?

Magnetic susceptibility

| −21.0·10⁻⁶ cm³/molHaynes, p. 3.576

Surface tension

| 39.04 dyn/cm at 10 °C
36.53 dyn/cm at 25 °C
32.33 dyn/cm at 50 °CHaynes, p. 6.182

Viscosity

| 0.63 cP at 25 °CHaynes, p. 6.231

== Thermodynamic properties ==

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Triple point \| 244.77 K (−23.38 °C), ? Pa
Critical point \| 588 K (315 °C), 5870 kPaHaynes, p. 6.69
Std enthalpy change of fusion, Δ_fusH^o \| 9.7 kJ/mol
Std entropy change of fusion, Δ_fusS^o \| 39.6 J/(mol·K)
Std enthalpy change of vaporization, Δ_vapH^o \| 38.3 kJ/mol
Std entropy change of vaporization, Δ_vapS^o \| 128.36 J/(mol·K)
{{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 \| −112. kJ/molHaynes, p. 5.20
Standard molar entropy, S^o_liquid \| 171.9 J/(mol·K)
Enthalpy of combustion, Δ_cH^o_liquid \| −709 kJ/mol
Heat capacity, c_p \| 106.6 J/(mol·K)
{{chembox header}} \| Gas properties
Std enthalpy change of formation, Δ_fH^o_gas \| −80.8 kJ/mol
Standard molar entropy, S^o_gas \| 282.9 J/(mol·K)
Heat capacity, c_p{{Cite web\|url=http://www.cheric.org/research/kdb/hcprop/cmpsrch.php\|title=Pure Component Properties\|publisher=Chemical Engineering Research Information Center\|accessdate=20 May 2007}} \| 55.5 J/(mol·K) at 25 °C

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! {{chembox header}} | Phase behavior

Triple point

| 244.77 K (−23.38 °C), ? Pa

Critical point

| 588 K (315 °C), 5870 kPaHaynes, p. 6.69

Std enthalpy change
of fusion, Δ_fusH^o

| 9.7 kJ/mol

Std entropy change
of fusion, Δ_fusS^o

| 39.6 J/(mol·K)

Std enthalpy change
of vaporization, Δ_vapH^o

| 38.3 kJ/mol

Std entropy change
of vaporization, Δ_vapS^o

| 128.36 J/(mol·K)

{{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

| −112. kJ/molHaynes, p. 5.20

Standard molar entropy,
S^o_liquid

| 171.9 J/(mol·K)

Enthalpy of combustion, Δ_cH^o_liquid

| −709 kJ/mol

Heat capacity, c_p

| 106.6 J/(mol·K)

{{chembox header}} | Gas properties

Std enthalpy change
of formation, Δ_fH^o_gas

| −80.8 kJ/mol

Standard molar entropy,
S^o_gas

| 282.9 J/(mol·K)

Heat capacity, c_p{{Cite web|url=http://www.cheric.org/research/kdb/hcprop/cmpsrch.php|title=Pure Component Properties|publisher=Chemical Engineering Research Information Center|accessdate=20 May 2007}}

| 55.5 J/(mol·K) at 25 °C

Vapor pressure of liquid

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{{chembox header}} \| P in mm Hg	1	10	40	100	400	760
{{chembox header}} \| T in °C	−29.0	2.8	27.5	46.6	82.0	101.2

Table data obtained from CRC Handbook of Chemistry and Physics 44th ed.

Image:LogNitromethaneVaporPressure.png

Distillation data

valign="top" \| {\| border="1" cellspacing="0" cellpadding="6" style="margin: 0 0 0 0.5em; background: white; border-collapse: collapse; border-color: #C0C090;"
bgcolor="#D0D0D0" align="center" colspan="3" \| Vapor-liquid Equilibrium for Nitromethane/Ethanol{{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=20 May 2007}} P = 730 mm Hg
{{chembox header}} ! rowspan="2" \| BP Temp. °C ! colspan="2" \| % by mole ethanol
{{chembox header}} ! liquid !! vapor
97.7	3.0	15.7
93.4	4.7	22.3
88.9	8.5	32.9
86.1	12.2	39.5
83.6	16.6	45.3
80.6	25.6	52.9
79.2	31.8	56.3
77.9	45.1	63.5
77.0	53.9	66.9
77.1	58.9	68.6
76.5	64.6	70.5
76.4	72.4	74.0
76.6	78.7	77.3
76.5	81.9	79.4
76.7	85.9	82.2
76.9	91.4	87.1
77.7	95.3	93.0
77.8	97.3	96.5

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bgcolor="#D0D0D0" align="center" colspan="3" \| Vapor-liquid Equilibrium for Nitromethane/Methanol P = 730 mm Hg
{{chembox header}} ! rowspan="2" \| BP Temp. °C ! colspan="2" \| % by mole methanol
{{chembox header}} ! liquid !! vapor
96.9	1.5	13.3
93.1	2.6	22.8
89.1	4.8	33.4
84.8	7.5	42.9
82.1	9.6	48.4
77.9	15.2	57.0
72.9	25.4	67.3
71.1	31.4	70.4
68.2	42.6	74.7
67.3	49.3	76.1
65.6	67.8	81.8
65.1	74.7	83.8
65.0	81.3	86.4
64.6	88.6	90.1
64.5	91.4	92.1
64.4	96.0	95.6
64.5	99.4	99.3

== 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 \|
Carbon-13 NMR \|
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

Carbon-13 NMR

Other NMR data

{{chembox header}} | MS

Masses of
main fragments

References

Cited sources

{{cite book | editor= Haynes, William M. | year = 2011 | title = CRC Handbook of Chemistry and Physics | edition = 92nd | publisher = CRC Press | isbn = 978-1439855119| title-link = CRC Handbook of Chemistry and Physics }}

Nitromethane (data page)

Vapor pressure of liquid

Distillation data

References

Cited sources

Further reading