This page provides supplementary chemical data on 1,2-dichloroethane.
Structure and properties
Structure and properties Index of refraction, nD 1.4448 Abbe number? Dielectric constant, εr 10.5 ε0 at 20 °C Bond strength ? Bond length ? Bond angle ? Magnetic susceptibility ? Surface tensionLange's Handbook of Chemistry, 10th ed. pp. 1161–1163 40.05 mN/m at 10 °C38.75 mN/m at 20 °C28.4 mN/m at 100 °C ViscosityLange's Handbook of Chemistry, 10th ed. pp. 1669–1674 1.1322 mPa·s at 0 °C0.8385 mPa·s at 20 °C0.6523 mPa·s at 40 °C0.4357 mPa·s at 80 °C
Thermodynamic properties
Phase behavior Triple point 237.2 K (−35.9 °C), ? Pa Critical point 561.6 K (288.5 °C), 5380 kPa Std enthalpy changeof fusion, ΔfusHo 8.8366 kJ/mol at −35.9 °C Std entropy changeof fusion, ΔfusSo 37.25 J/(mol·K) at −35.9 °C Std enthalpy changeof vaporization, ΔvapHo 33.91 kJ/mol at 20 °C Std entropy changeof vaporization, ΔvapSo ? J/(mol·K) Solid properties Std enthalpy changeof formation, ΔfHosolid ? kJ/mol Standard molar entropy,Sosolid ? J/(mol K) Heat capacity, cp ? J/(mol K) Liquid properties Std enthalpy changeof 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 changeof 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 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.
Distillation data See also: Tetrachloroethylene (data page)
Vapor-liquid equilibriumof 1,2-Dichloroethylene/MethanolP = 96.7 kPa BPTemp.°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 equilibriumof 1,2-Dichloroethylene/EthanolP = 760 mm Hg BPTemp.°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 equilibriumof 1,2-Dichloroethylene/TolueneP = 760 mm Hg BPTemp.°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 equilibriumof 1,2-Dichloroethylene/CyclohexaneP = 760 mm Hg BPTemp.°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
UV-Vis λmax ? nm Extinction coefficient, ε ? IR Major absorption bands ? cm−1 NMR Proton NMR Carbon-13 NMR Other NMR data MS Masses of main fragments
References