1,2-Dichloroethane (data page) – Wikipedia

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Chemical data page

This page provides supplementary chemical data on 1,2-dichloroethane.

Structure and properties[edit]

Thermodynamic properties[edit]

Phase behavior
Triple point 237.2 K (–35.9 °C), ? Pa
Critical point 561.6 K (288.5 °C), 5380 kPa
Std enthalpy change
of fusion, ΔfusHo		 8.8366 kJ/mol at –35.9 °C
Std entropy change
of fusion, ΔfusSo		 37.25 J/(mol·K) at –35.9 °C
Std enthalpy change
of vaporization, ΔvapHo		 33.91 kJ/mol at 20 °C
Std entropy change
of vaporization, ΔvapSo		 ? 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		 –169.7 kJ/mol
Standard molar entropy,
Soliquid		 208.53 J/(mol K)
Enthalpy of combustion, ΔcHoliquid –1236.4 kJ/mol
Heat capacity, cp 129.0 J/(mol K)
Gas properties
Std enthalpy change
of formation, ΔfHogas		 –125.4 kJ/mol
Standard molar entropy,
Sogas		 ? J/(mol K)
Heat capacity, cp 77.5 J/(mol K) at 25 °C

Vapor pressure of liquid[edit]

P in mm Hg 1 10 40 100 400 760 1520 3800 7600 15200 30400 45600
T in °C –44.5(s) –13.6 10.0 29.4 64.0 83.4 108.1 147.8 183.5 226.5 272.0  —

Table data obtained from CRC Handbook of Chemistry and Physics 44th ed. The (s) annotation indicates temperature is equilibrium of vapor over solid. Otherwise temperature is equilibrium of vapor over liquid.

log10 of 1,2-dichloroethane vapor pressure. Uses formula:

Distillation data[edit]

See also:

Vapor-liquid equilibrium
of 1,2-Dichloroethylene/
Methanol[6]
P = 96.7 kPa
BP
Temp.
°C 		% by mole methanol
liquid vapor
63.3 100.00 100.00
60.2 92.01 82.50
59.3 79.52 72.06
58.9 69.03 66.43
59.1 63.50 63.50
59.0 59.02 63.27
59.3 47.91 63.25
59.6 43.02 62.55
61.8 15.03 54.15
66.7 6.01 42.03
82.15 0.00 0.0
   
Vapor-liquid equilibrium
of 1,2-Dichloroethylene/
Ethanol[6]
P = 760 mm Hg
BP
Temp.
°C 		% by mole ethanol
liquid vapor
79.9 3.0 13.0
78.0 4.2 19.5
76.7 7.3 23.3
74.1 11.3 31.5
72.6 15.2 36.0
70.9 28.3 43.6
70.5 34.5 45.2
70.2 42.5 47.8
70.1 48.8 49.8
70.2 59.8 53.5
70.8 70.5 58.2
71.4 76.5 62.8
72.1 81.7 67.0
74.7 92.3 81.7
75.7 94.8 86.5
77.3 97.8 94.5
   
Vapor-liquid equilibrium
of 1,2-Dichloroethylene/
Toluene[6]
P = 760 mm Hg
BP
Temp.
°C 		% by mole dichloroethane
liquid vapor
85.5 89.7 94.2
87.5 80.1 89.2
89.1 69.8 82.1
91.3 60.5 78.2
92.9 54.0 72.5
94.6 48.2 66.3
97.1 39.8 60.3
97.8 36.4 55.0
101.5 26.2 42.4
102.7 20.0 34.8
105.7 14.0 27.5
108.1 7.0 16.9
109.1 1.8 6.6
   
Vapor-liquid equilibrium
of 1,2-Dichloroethylene/
Cyclohexane[6]
P = 760 mm Hg
BP
Temp.
°C 		% by mole cyclohexane
liquid vapor
80.5 6.50 14.60
80.0 8.25 17.00
78.8 12.00 23.70
77.6 17.30 29.80
77.0 21.50 33.40
76.4 26.15 37.50
75.9 31.90 40.80
75.6 36.10 43.60
75.2 42.95 47.60
75.1 51.70 52.50
75.1 52.45 53.00
75.1 56.10 55.10
75.2 59.75 57.10
75.7 72.90 65.60
76.6 82.00 73.50
77.5 88.00 79.80
79.3 95.50 91.50

Spectral data[edit]

References[edit]