Chloroform (data page)

This page provides supplementary chemical data on chloroform.

Material Safety Data Sheet

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

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Structure and properties

Structure and properties
Index of refraction, nD	1.4459 at 19 °C
Abbe number	?
Dielectric constant, εr	4.8069 ε0 at 20 °C
Bond strength	?
Bond length[1]	C-Cl 1.75 Å
Bond angle[1]	Cl-C-Cl 110.3°
Dipole moment	1.08 D (gas)[citation needed] 1.04 D[2]
Magnetic susceptibility	? – Close to that of Teflon
Surface tension	28.5 dyn/cm at 10 °C 27.1 dyn/cm at 20 °C 26.67 dyn/cm at 25 °C 23.44 dyn/cm at 50 °C 21.7 dyn/cm at 60 °C 20.20 dyn/cm at 75 °C
Viscosity[3]	0.786 mPa·s at –10 °C 0.699 mPa·s at 0 °C 0.563 mPa·s at 20 °C 0.542 mPa·s at 25 °C 0.464 mPa·s at 40 °C 0.389 mPa·s at 60 °C

Thermodynamic properties

Phase behavior
Triple point	209.61 K (–63.54 °C), ? Pa
Critical point	537 K (264 °C), 5328.68 kPa
Std enthalpy change of fusion, ΔfusHo	8.8 kJ/mol
Std entropy change of fusion, ΔfusSo	42 J/(mol·K)
Std enthalpy change of vaporization, ΔvapHo	31.4 kJ/mol
Std entropy change of vaporization, ΔvapSo	105.3 J/(mol·K)
Solid properties
Std enthalpy change of formation, ΔfHosolid	? kJ/mol
Standard molar entropy, Sosolid	? J/(mol K)
Heat capacity, cp	? J/(mol K)
Liquid properties
Std enthalpy change of formation, ΔfHoliquid	–134.3 kJ/mol
Standard molar entropy, Soliquid	? J/(mol K)
Enthalpy of combustion	–473.2 kJ/mol ΔcHo
Heat capacity, cp	114.25 J/(mol K)
Gas properties
Std enthalpy change of formation, ΔfHogas	–103.18 kJ/mol
Standard molar entropy, Sogas	295.6 J/(mol K) at 25 °C
Heat capacity, cp	65.33 J/(mol K) at 25 °C
van der Waals' constants[4]	a = 1537 L2 kPa/mol2 b = 0.1022 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		–58.0	–29.7	–7.1	10.4	42.7	61.3	83.9	120.0	152.3	191.8	237.5	—

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

log₁₀ of Chloroform vapor pressure. Uses formula: ${\displaystyle \scriptstyle \log _{e}P_{mmHg}=}$${\displaystyle \scriptstyle \log _{e}({\frac {760}{101.325}})-10.07089\log _{e}(T+273.15)-{\frac {6351.140}{T+273.15}}+81.14393+9.127608\times 10^{-6}(T+273.15)^{2}}$ obtained from CHERIC^[5]

Distillation data

Vapor-liquid Equilibrium for Chloroform/Ethanol[6] P = 101.325 kPa BP Temp. °C  % by mole chloroform liquid vapor 78.15 0.0 0.0 78.07 0.52 1.59 77.83 1.02 3.01 76.81 2.21 7.45 74.90 5.80 17.10 74.39 6.72 19.40 73.55 8.38 23.31 72.85 10.57 28.05 72.24 11.80 30.52 71.58 13.18 33.13 69.72 17.65 41.00 68.95 19.62 43.66 68.58 20.71 45.43 67.35 23.86 49.77 65.89 28.54 55.09 64.87 32.35 58.48 63.88 36.07 61.27 63.23 39.34 64.50 62.61 41.38 65.49 62.17 44.41 67.57 61.48 49.97 71.11 61.00 53.92 72.91 60.49 54.76 73.57 60.35 59.65 74.68 60.30 61.60 75.53 60.20 63.04 76.12 60.09 64.48 76.69 59.97 66.90 77.74 59.54 72.01 79.33 59.32 79.07 82.62 59.26 82.99 83.59 59.28 84.97 84.69 59.31 85.96 85.24 59.46 89.92 87.93 59.72 91.10 88.73 59.70 92.44 89.79 59.84 93.90 91.02 59.91 95.26 92.56 60.18 96.13 93.58 60.88 98.89 97.93 61.13 100.00 100.00

Vapor-liquid Equilibrium for Chloroform/Acetone[6] P = 101.325 kPa BP Temp. °C  % by mole acetone liquid vapor 62.11 7.5 4.9 63.45 17.7 13.7 63.95 22.9 19.1 64.19 26.2 23.0 64.29 28.5 25.9 64.45 34.5 33.9 64.47 35.7 35.6 64.47 36.5 36.6 64.46 38.7 39.6 64.43 39.5 40.8 64.40 40.4 42.0 64.20 45.2 48.8 64.05 46.6 51.0 64.04 47.4 52.0 63.67 51.9 57.9 63.19 56.4 64.1 62.73 59.4 67.9 62.42 61.0 69.7 62.16 62.4 71.5 61.24 68.4 78.0 60.23 74.7 84.0 57.23 91.8 96.1

Vapor-liquid Equilibrium for Chloroform/Methanol[6] P = 760 mm Hg BP Temp. °C  % by mole chloroform liquid vapor 63 4.0 10.2 62 6.5 15.4 60.9 9.5 21.5 59.3 14.6 30.4 57.8 19.6 37.8 57.0 23.0 42.0 55.9 28.7 47.2 55.3 33.2 50.7 54.7 38.3 54.0 54.3 42.5 56.4 54.0 45.9 58.0 53.8 52.0 60.7 53.7 55.7 61.9 53.5 62.8 64.3 53.5 63.6 64.6 53.5 66.7 65.5 53.7 75.3 68.4 53.9 79.7 70.1 54.4 85.5 73.0 55.2 90.4 76.8 56.3 93.7 81.2 57.9 97.0 87.5

Spectral data

UV-Vis
λmax	? nm
Extinction coefficient, ε	?
IR
Major absorption bands	1215, 761, 668 cm−1
NMR
Proton NMR	δ CDCl3 7.26 (s, 1H)
Carbon-13 NMR	δ CDCl3 77.2
Other NMR data
MS
Masses of main fragments