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25: 30: 35: 40: 45: 50 Freezing point (°F) ... See also "Typical Freezing and Boiling Points of Aqueous ... Vapor–liquid equilibrium for ethylene glycol/water [3 ...
So, while providing freeze protection and an increased boiling point, ethylene glycol lowers the specific heat capacity of water mixtures relative to pure water. A 1:1 mix by mass has a specific heat capacity of about 3140 J/(kg·°C) (0.75 BTU/(lb·°F)), three quarters that of pure water, thus requiring increased flow rates in same-system ...
Propylene glycol solutions cannot be tested using specific gravity because of ambiguous results (40% and 100% solutions have the same specific gravity), [19] although typical uses rarely exceed 60% concentration. The boiling point can be similarly determined by a concentration given from one of the three methods.
The phenomenon of freezing-point depression has many practical uses. The radiator fluid in an automobile is a mixture of water and ethylene glycol. The freezing-point depression prevents radiators from freezing in winter. Road salting takes advantage of this effect to lower the freezing point of the ice it is placed on.
As water or ethylene glycol freeze out of the mixture, the concentration of ethanol/methanol increases. This leads to a new, lower freezing point. With dry ice, these baths will never freeze solid, as pure methanol and ethanol both freeze below −78 °C (−98 °C and −114 °C respectively).
The freezing point of water is depressed ... data from 1996 to 2006 showed that the most common site for propylene glycol contact dermatitis was the face (25.9% ...