Fluids / Ethylene glycol, 50 % by volume
Density of ethylene glycol, 50 % by volume vs temperature
A 50 % by volume ethylene glycol solution, freeze protection to about −37 °C — the standard chiller and automotive charge.
Density in kg/m³, from -30 to 100 °C. The chart and the table below are the same numbers; the table is the one you can copy.
Ethylene glycol, 50 % by volume — everything else at 20 °C (default)
| Specific heat | 3.29 kJ/(kg·K) |
| Dynamic viscosity | 4.2 mPa·s |
| Thermal conductivity | 0.389 W/(m·K) |
Density by temperature
| Temperature (°C) | Density (kg/m³) | Row |
|---|---|---|
| -30 | 1,092 | published |
| -20 | 1,089 | published |
| -10 | 1,086 | published |
| 0 | 1,082 | published |
| 10 | 1,077.3 | interpolated |
| 20 | 1,072 | published |
| 30 | 1,066.3 | interpolated |
| 40 | 1,060 | published |
| 50 | 1,053.2 | interpolated |
| 60 | 1,046 | published |
| 70 | 1,038.6 | interpolated |
| 80 | 1,031 | published |
| 90 | 1,023.1 | interpolated |
| 100 | 1,015 | published |
Rows marked published land exactly on a source anchor and are the tabulated figure. The rest are this library’s interpolation between the two anchors either side — good enough to design with, and said out loud so you can decide that for yourself.
ASHRAE Handbook—Fundamentals, Ch. 31 (Secondary Coolants), interpolated from published tables · validated -30 to 100 °C · interpolated between 9 published anchors (values held, not extrapolated, past the ends)