This page provides supplementary chemical data on ethylene glycol.

Material Safety Data Sheet

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

Science Stuff Mallinckrodt Baker.

Structure and properties

Structure and properties Index of refraction, nD 1.4318 at 20°C Abbe number? Dielectric constant, εr David R. Lide. Handbook of chemistry and physics CRC (2007), 87th ed. 41.4 ε0 at 20 °C Bond strength ? Bond length ? Bond angle ? Magnetic susceptibility ? Surface tension 47.99 dyn/cm at 25°C Viscosity 16.1 mPa·s at 25°C

Thermodynamic properties

Phase behavior Triple point 256 K (−17 °C), ? Pa Critical point 720 K (447 °C), 8.2 MPa Standard enthalpy change of fusion, ΔfusHo 9.9 kJ/mol Standard entropy change of fusion, ΔfusSo 38.2 J/(mol·K) Standard enthalpy change of vaporization, ΔvapHo 65.6 kJ/mol Standard entropy change of vaporization, ΔvapSo ? J/(mol·K) Solid properties Standard enthalpy change of formation, ΔfHosolid ? kJ/mol Standard molar entropy, Sosolid ? J/(mol K) Heat capacity, cp ? J/(mol K) Liquid properties Standard enthalpy change of formation, ΔfHoliquid −460 kJ/mol Standard molar entropy, Soliquid 166.9 J/(mol·K) Heat capacity, cp 149.5 J/(mol·K) Gas properties Standard enthalpy change of formation, ΔfHogas −3955.4 kJ/mol Standard molar entropy, Sogas 311.8 J/(mol·K) Heat capacity, cp 78 J/(mol·K) at 25 °C

Vapor pressure of liquid P in mm Hg 1 10 40 100 400 760 T in °C 53.0 92.1 120.0 141.8 178.5 197.3

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

Freezing point of aqueous solutions % ethylene glycol by volume 5 10 15 20 25 30 35 40 45 50 Freezing point (°F) −1.1 −2.2 −3.9 −6.7 −8.9 −12.8 −16.1 −20.6 −26.7 −33.2 Specific gravity d90° 1.004 1.006 1.012 1.017 1.020 1.024 1.028 1.032 1.037 1.040 Table obtained from Lange's Handbook of Chemistry, 10th ed. Specific gravity is referenced to water at 15.6 °C.

See also

Distillation data Vapor–liquid equilibrium for ethylene glycol/waterP = 760 mmHg BPtemp.°C % by mole water liquid vapor 110.00 79.8 99.3 116.40 61.3 98.5 124.30 55.9 97.7 124.50 55.3 97.6 126.00 48.2 97.1 128.10 42.6 96.3 129.50 41.1 96.2 130.50 38.8 95.5 131.20 36.5 95.2 135.20 28.9 92.6 136.00 28.3 92.4 138.00 24.1 90.9 142.50 21.6 88.7 149.00 17.8 85.2 158.10 12.9 77.6 167.40 10.2 70.6 178.60 6.5 56.3 184.20 3.4 37.9     Vapor–liquid equilibrium for ethylene glycol/methanolP = 760 mmHg BPtemp.°C % by mole methanol liquid vapor 66.70 93.0 99.9 73.20 82.1 99.8 79.60 66.4 99.7 84.70 53.0 99.3 90.20 45.7 99.0 93.80 40.6 98.5 101.40 36.3 97.9 102.70 35.6 97.5 104.90 32.2 96.7 105.10 22.7 94.6 109.90 21.2 93.3 113.00 19.5 92.3 121.50 13.7 86.4 149.60 10.3 74.6 157.50 4.6 51.5 166.30 3.6 42.0 175.20 2.5 30.4 183.50 1.4 18.1 189.10 0.5 6.8

Spectral data

UV-Vis λmax ? nm Extinction coefficient, ε ? IR Major absorption bands ? cm−1 NMR Proton NMR 3.3-3.7 ppm Carbon-13 NMR 62-65 ppm Other NMR data   MS Masses of main fragments  

References

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