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.

Phase behavior
Triple point	244.77 K (−23.38 °C), ? Pa
Critical point	588 K (315 °C), 5870 kPa[6]
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)
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)
Liquid properties
Std enthalpy change of formation, Δ_fH^o_liquid	−112. kJ/mol[7]
Standard molar entropy, S^o_liquid	171.8 J/(mol·K)[7]
Enthalpy of combustion, Δ_cH^o_liquid	−709 kJ/mol
Heat capacity, c_p	106.6 J/(mol·K)[7]
Gas properties
Std enthalpy change of formation, Δ_fH^o_gas	−80.8 kJ/mol[7]
Standard molar entropy, S^o_gas	282.9 J/(mol·K)[7]
Heat capacity, c_p[8]	55.5 J/(mol·K) at 25 °C[7]

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[8]

BP Temp. °C	% by mole ethanol
Vapor-liquid Equilibrium for Nitromethane/Ethanol[9] P = 730 mm Hg
BP Temp. °C	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

BP Temp. °C	% by mole methanol
Vapor-liquid Equilibrium for Nitromethane/Methanol[9] P = 730 mm Hg
BP Temp. °C	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

Haynes, p. 3.414
Haynes, p. 6189
Haynes, p. 3.576
Haynes, p. 6.182
Haynes, p. 6.231
Haynes, p. 6.69
Haynes, p. 5.20
"Pure Component Properties". Chemical Engineering Research Information Center. Retrieved 20 May 2007.
"Binary Vapor-Liquid Equilibrium Data" (Queriable database). Chemical Engineering Research Information Center. Retrieved 20 May 2007.

Except where noted otherwise, data relate to standard ambient temperature and pressure.
Haynes, William M., ed. (2011). CRC Handbook of Chemistry and Physics (92nd ed.). CRC Press. ISBN 978-1439855119.