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.Mallinckrodt Baker
Structure and properties
Structure and properties Dielectric constant, εr 37.27 ε0 at 20 °C Haynes, p. 6189 Surface tension 39.04 dyn/cm at 10 °C36.53 dyn/cm at 25 °C32.33 dyn/cm at 50 °CHaynes, p. 6.182
Thermodynamic properties
Phase behavior Triple point 244.77 K (−23.38 °C), ? Pa Std entropy changeof fusion, ΔfusSo 39.6 J/(mol·K) Std entropy changeof vaporization, ΔvapSo 128.36 J/(mol·K) Solid properties Liquid properties Gas properties Std enthalpy changeof formation, ΔfHogas −80.8 kJ/molHaynes, p. 5.20 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.
Distillation data Vapor-liquid Equilibriumfor Nitromethane/EthanolP = 730 mm Hg BPTemp.°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 Equilibriumfor Nitromethane/MethanolP = 730 mm Hg BPTemp.°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
References
Cited sources
Further reading