// Workers AI · dad joke modeWhy did Nitromethane go to therapy? It had explosive issues.

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
Dielectric constant, εr	37.27 ε0 at 20 °C
Surface tension	39.04 dyn/cm at 10 °C 36.53 dyn/cm at 25 °C 32.33 dyn/cm at 50 °C

Thermodynamic properties

Phase behavior
Triple point	244.77 K (−23.38 °C), ? Pa
Std entropy change of fusion, ΔfusSo	39.6 J/(mol·K)
Std entropy change of vaporization, ΔvapSo	128.36 J/(mol·K)
Solid properties
Liquid properties
Gas properties
Std enthalpy change of formation, ΔfHogas	−80.8 kJ/mol
Standard molar entropy, Sogas	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: $\scriptstyle \log _{e}P_{mmHg}=$$\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

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• Except where noted otherwise, data relate to Standard temperature and pressure.
• Reliability of data general note.

Cited sources

• Haynes, William M., ed. (2011). CRC Handbook of Chemistry and Physics (92nd ed.). CRC Press. ISBN 978-1439855119.

Further reading

• Linstrom, Peter (1997). "NIST Standard Reference Database". National Institute of Standards and Technology. doi:10.18434/T4D303. {{cite journal}}: Cite journal requires |journal= (help)