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Nitromethane (data page)

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Chemical 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.

Structure and properties

Structure and properties
Index of refraction, nD 1.3817 at 20 °C
Abbe number ?
Dielectric constant, εr 37.27 ε0 at 20 °C
Bond strength ?
Bond length ?
Bond angle ?
Magnetic susceptibility −21.0·10 cm/mol
Surface tension 39.04 dyn/cm at 10 °C
36.53 dyn/cm at 25 °C
32.33 dyn/cm at 50 °C
Viscosity 0.63 cP at 25 °C

Thermodynamic properties

Phase behavior
Triple point 244.77 K (−23.38 °C), ? Pa
Critical point 588 K (315 °C), 5870 kPa
Std enthalpy change
of fusion, ΔfusH 		9.7 kJ/mol
Std entropy change
of fusion, ΔfusS 		39.6 J/(mol·K)
Std enthalpy change
of vaporization, ΔvapH 		38.3 kJ/mol
Std entropy change
of vaporization, ΔvapS 		128.36 J/(mol·K)
Solid properties
Std enthalpy change
of formation, ΔfHsolid 		? kJ/mol
Standard molar entropy,
Ssolid 		? J/(mol K)
Heat capacity, cp ? J/(mol K)
Liquid properties
Std enthalpy change
of formation, ΔfHliquid 		−112. kJ/mol
Standard molar entropy,
Sliquid 		171.9 J/(mol·K)
Enthalpy of combustion, ΔcHliquid −709 kJ/mol
Heat capacity, cp 106.6 J/(mol·K)
Gas properties
Std enthalpy change
of formation, ΔfHgas 		−80.8 kJ/mol
Standard molar entropy,
Sgas 		282.9 J/(mol·K)
Heat capacity, cp 55.5 J/(mol·K) at 25 °C

Vapor pressure of liquid

P in mm Hg 1 10 40 100 400 760
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.

log10 of Nitromethane vapor pressure. Uses formula: log e ⁡ P m m H g = {\displaystyle \scriptstyle \log _{e}P_{mmHg}=} log e ⁡ ( 760 101.325 ) − 10.20778 log e ⁡ ( T + 273.15 ) − 7217.173 T + 273.15 + 83.18124 + 8.369119 × 10 − 06 ( T + 273.15 ) 2 {\displaystyle \scriptstyle \log _{e}({\frac {760}{101.325}})-10.20778\log _{e}(T+273.15)-{\frac {7217.173}{T+273.15}}+83.18124+8.369119\times 10^{-06}(T+273.15)^{2}} obtained from CHERIC

Distillation data

Vapor-liquid Equilibrium
for Nitromethane/Ethanol
P = 730 mm Hg
BP
Temp.
°C 		% by mole ethanol
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
   
Vapor-liquid Equilibrium
for Nitromethane/Methanol
P = 730 mm Hg
BP
Temp.
°C 		% by mole methanol
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

UV-Vis
λmax ? nm
Extinction coefficient, ε ?
IR
Major absorption bands ? cm
NMR
Proton NMR  
Carbon-13 NMR  
Other NMR data  
MS
Masses of
main fragments 		 
  This box:   

References

  1. Mallinckrodt Baker
  2. Haynes, p. 3.414
  3. Haynes, p. 6189
  4. Haynes, p. 3.576
  5. Haynes, p. 6.182
  6. Haynes, p. 6.231
  7. Haynes, p. 6.69
  8. ^ Haynes, p. 5.20
  9. ^ "Pure Component Properties". Chemical Engineering Research Information Center. Retrieved 20 May 2007.
  10. ^ "Binary Vapor-Liquid Equilibrium Data" (Queriable database). Chemical Engineering Research Information Center. Retrieved 20 May 2007.

Cited sources

Further reading

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