Fluids / Propylene glycol, 60 % by volume
Thermal conductivity of propylene glycol, 60 % by volume vs temperature
A 60 % by volume propylene glycol solution, freeze protection to about −51 °C — the deepest worthwhile charge, and viscosity is now the design constraint.
Thermal conductivity in W/(m·K), from -35 to 100 °C. The chart and the table below are the same numbers; the table is the one you can copy.
| Density | 1,049.4 kg/m³ |
| Specific heat | 3.339 kJ/(kg·K) |
| Dynamic viscosity | 10.04 mPa·s |
| Temperature (°C) | Thermal conductivity (W/(m·K)) | Row |
|---|---|---|
| -30 | 0.272 | published |
| -20 | 0.278 | published |
| -10 | 0.285 | published |
| 0 | 0.291 | published |
| 10 | 0.297 | published |
| 20 | 0.302 | published |
| 30 | 0.307 | published |
| 40 | 0.311 | published |
| 50 | 0.314 | published |
| 60 | 0.317 | published |
| 70 | 0.32 | published |
| 80 | 0.321 | published |
| 90 | 0.323 | published |
| 100 | 0.323 | 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.
Dow, Engineering and Operating Guide for DOWFROST and DOWFROST HD, SI tables, by volume; typical values for inhibited product · validated -35 to 100 °C · interpolated between 28 published anchors (values held, not extrapolated, past the ends)