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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.

Thermal conductivity W/(m·K)
Thermal conductivity of propylene glycol, 60 % by volume in W/(m·K), from -35 to 100 °C-35 °C — 0.269 W/(m·K)-30 °C — 0.272 W/(m·K)-25 °C — 0.275 W/(m·K)-20 °C — 0.278 W/(m·K)-15 °C — 0.282 W/(m·K)-10 °C — 0.285 W/(m·K)-5 °C — 0.288 W/(m·K)0 °C — 0.291 W/(m·K)5 °C — 0.294 W/(m·K)10 °C — 0.297 W/(m·K)15 °C — 0.299 W/(m·K)20 °C — 0.302 W/(m·K)25 °C — 0.304 W/(m·K)30 °C — 0.307 W/(m·K)35 °C — 0.309 W/(m·K)40 °C — 0.311 W/(m·K)45 °C — 0.313 W/(m·K)50 °C — 0.314 W/(m·K)55 °C — 0.316 W/(m·K)60 °C — 0.317 W/(m·K)65 °C — 0.319 W/(m·K)70 °C — 0.32 W/(m·K)75 °C — 0.321 W/(m·K)80 °C — 0.321 W/(m·K)85 °C — 0.322 W/(m·K)90 °C — 0.323 W/(m·K)95 °C — 0.323 W/(m·K)100 °C — 0.323 W/(m·K)0.270.2750.280.2850.290.2950.30.3050.310.3150.32-30-20-100102030405060708090100Temperature (°C)Thermal conductivity (W/(m·K))
Propylene glycol, 60 % by volume — everything else at 20 °C (default)
Density1,049.4 kg/m³
Specific heat3.339 kJ/(kg·K)
Dynamic viscosity10.04 mPa·s
Thermal conductivity by temperature
Temperature (°C)Thermal conductivity (W/(m·K))Row
-300.272published
-200.278published
-100.285published
00.291published
100.297published
200.302published
300.307published
400.311published
500.314published
600.317published
700.32published
800.321published
900.323published
1000.323published

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)

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