Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

Propylene Glycol based Heat-Transfer Fluids

Freezing points of propylene glycol based heat-transfer fluids suitable for the food processing industry.

Sponsored Links

For many heat-transfer applications it is necessary to use a heat-transfer fluid with lower freezing point than water. The most common antifreeze fluid - ethylene glycol - must not be used where there is a chance of leakage to potable water or food processing systems.

In food processing systems the common heat-transfer fluid is based on propylene glycol.

Freezing Points of Propylene Glycol based Water Solutions

Freezing point of propylene glycol based water solutions at different temperatures:

Freezing Point
Propylene Glycol Solution
(%)
by mass 0 10 20 30 40 50 60
by volume 0 10 19 29 40 50 60
Temperature oF 32 26 18 7 -8 -29 -55
oC 0 -3 -8 -14 -22 -34 -48

Due to slush creation - a propylene glycol and water solution should not be used close to freezing points.

Propylene glycol water solutions - freezing points

Specific Gravities of Propylene Glycol Solutions

Specific gravity of propylene glycol solutions:

Specific Gravity - SG -
Propylene Glycol Solution
(%)
by mass 0 10 20 30 40 50 60
by volume 0 10 20 29 40 50 60
Specific Gravity - SG - 1) 1.000 1.008 1.017 1.026 1.034 1.041 1.046

1) Specific gravity based on propylene glycol solutions with temperature 60oF.

Densities of Propylene Glycol water Solutions

Density - ρ - (kg/m3)
Mass Fraction of Propylene Glycol in SolutionTemperature - t - (oC)
-45-33-22-13-7-3020406080100
0 1000 998 993 983 972 958
0.1 1012 1012 1006 998 988 976 965
0.2 1023 1022 1022 1014 1004 992 980 967
0.3 1035 1034 1032 1031 1022 1010 997 983 969
0.4 1049 1047 1044 1043 1041 1030 1016 1002 987 971
0.5 1064 1061 1058 1055 1053 1051 1038 1023 1006 990 974
0.6 1080 1078 1074 1069 1065 1063 1061 1046 1029 1011 994 976

Boiling Points of Propylene Glycol Solutions

Boiling points of propylene glycol solutions:

Boiling Point
Propylene Glycol Solution
(%)
by mass 0 10 20 30 40 50 60
by volume 0 10 20 29 40 50 60
Temperature (oF) 212 212 213 216 219 222 225
  • T(oC) = 5/9[T(oF) - 32]

Specific Heats of Propylene Glycol Solutions

Specific heat of propylene glycol solutions:

Specific Heat
Propylene Glycol Solution
(%)
by mass 0 10 20 30 40 50 60
by volume 0 10 20 29 40 50 60
Specific Heat
- cp -
(Btu/lb oF)
1.000 0.980 0.960 0.935 0.895 0.850 0.805
  • 1 Btu/(lbmoF) = 4186.8 J/(kg K) = 1 kcal/(kgoC)

Propylene glycol water solutions - specific heat

Sponsored Links

Related Topics

Related Documents

Sponsored Links

Engineering ToolBox - SketchUp Extension - Online 3D modeling!

3D Engineering ToolBox Extension to SketchUp - add parametric components to your SketchUp model

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with the amazing, fun and free SketchUp Make and SketchUp Pro .Add the Engineering ToolBox extension to your SketchUp from the SketchUp Pro Sketchup Extension Warehouse!

Translate
About the Engineering ToolBox!

Privacy

We don't collect information from our users. Only emails and answers are saved in our archive. Cookies are only used in the browser to improve user experience.

Some of our calculators and applications let you save application data to your local computer. These applications will - due to browser restrictions - send data between your browser and our server. We don't save this data.

Google use cookies for serving our ads and handling visitor statistics. Please read Google Privacy & Terms for more information about how you can control adserving and the information collected.

AddThis use cookies for handling links to social media. Please read AddThis Privacy for more information.

Citation

This page can be cited as

  • Engineering ToolBox, (2003). Propylene Glycol based Heat-Transfer Fluids. [online] Available at: https://www.engineeringtoolbox.com/propylene-glycol-d_363.html [Accessed Day Mo. Year].

Modify access date.

. .

close

3D Engineering ToolBox - draw and model technical applications! 2D Engineering ToolBox - create and share online diagram drawing templates! Engineering ToolBox Apps - mobile online and offline engineering applications!

Scientific Online Calculator

Scientific Calculator

3 30

Sponsored Links
.