Aniline (data page)

This page provides supplementary chemical data on aniline.

The handling of this chemical may incur notable safety precautions. It is highly recommend that you seek the Material Safety Datasheet (MSDS) for this chemical from a reliable source and follow its directions.

Structure and properties

Structure and properties
Dielectric constant,^[1] ε_r	6.89 ε₀ at 20 °C
Surface tension^[2]	44.0 dyn/cm at 10 °C 42.9 dyn/cm at 20 °C 24.4 dyn/cm at 180 °C

Thermodynamic properties

Phase behavior
Triple point	267.13 K (–6.02 °C), ? Pa
Std entropy change of fusion, Δ_fusS^o	39.57 J/(mol·K) at –6.3 °C
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
Gas properties
Std enthalpy change of formation, Δ_fH^o_gas	87 kJ/mol
Standard molar entropy, S^o_gas	? J/(mol K)
Heat capacity,^[3] c_p	148.7 J/(mol K) at 25 °C
van der Waals' constants^[4]	a = 2685 L² kPa/mol² b = 0.1369 liter per mole

Vapor pressure of liquid

P in mm Hg		1	10	40	100	400	760	1520	3800	7600	15200	30400	45600
T in °C		34.8	69.4	96.7	119.9	161.9	184.4	212.8	254.8	292.7	342.0	400.0	—

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

**log₁₀ of Aniline vapor pressure.** Uses formula: $\scriptstyle \log _{e}P_{mmHg}=$ $\scriptstyle \log _{e}({\frac {760}{101.325}})-22.11315\log _{e}(T+273.15)-{\frac {13079.73}{T+273.15}}+166.0812+1.233275\times 10^{-5}(T+273.15)^{2}$ obtained from CHERIC^[3]

Distillation data

See also:

BP Temp. °C	% by mole water
Vapor-liquid Equilibrium for Aniline/Water^[5] P = 745 mm Hg
BP Temp. °C	liquid	vapor
98.5		96.5
101	24.7	94.8
105	20.0	94.3
109.8	15.3	92.4
115.8	11.7	89.3
121	9.3	86.2
126	7.6	81.6
131	5.9	75.9
140	4.25	70.8
152	2.50	60.5
160	1.70	48.7
168	1.05	34.1

BP Temp. °C	% by mole hexane
Vapor-liquid Equilibrium for Aniline/n-hexane^[5] P = 101.325 kPa
BP Temp. °C	liquid	vapor
150.2	1.50	62.50
136.4	2.50	76.00
116.0	5.30	88.70
90.0	11.00	96.00
79.5	16.85	97.66
75.7	20.99	98.07
74.1	27.35	98.31
73.25	37.90	98.42
73.20	52.00	98.62
73.15	71.46	98.78
72.15	81.26	98.93
71.50	86.50	99.06
70.70	90.93	99.16
69.80	95.32	99.36
69.10	97.86	99.61

Regulatory data
Flash point	70 °C
RTECS	?
Autoignition temperature	615 °C

Aniline (data page)

Structure and properties

Thermodynamic properties

Vapor pressure of liquid

Distillation data

Spectral data

UV Absorbance Spectroscopy of Aniline

Regulatory data

References

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