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2. Antifreeze - Wikipedia

   en.wikipedia.org/wiki/Antifreeze

   Cryoprotectants are commonly used in cryobiology to prevent or inhibit freezing in sperm, blood, stem cells, plant seeds, etc. [7] [8] Ethylene glycol, propylene glycol, and glycerol (all used in automotive antifreeze) are commonly used as biological cryoprotectants. [7] [8]

3. Propylene glycol - Wikipedia

   en.wikipedia.org/wiki/Propylene_glycol

   [7] [22] Water-propylene glycol mixtures dyed pink to indicate the mixture is relatively nontoxic are sold under the name of RV or marine antifreeze. Propylene glycol is frequently used as a substitute for ethylene glycol in low toxicity, environmentally friendly automotive antifreeze.

4. Cryoprotectant - Wikipedia

   en.wikipedia.org/wiki/Cryoprotectant

   Conventional cryoprotectants are glycols (alcohols containing at least two hydroxyl groups), such as ethylene glycol [citation needed], propylene glycol and glycerol. Ethylene glycol is commonly used as automobile antifreeze; while propylene glycol has been used to reduce ice formation in ice cream.

5. Aircraft deicing fluid - Wikipedia

   en.wikipedia.org/wiki/Aircraft_deicing_fluid

   Propylene glycol-based fluid is more common because it is less toxic than ethylene glycol. SAE International (formerly known as the Society of Automotive Engineers) publishes standards (SAE AMS 1428 and AMS 1424) for four different types of aviation deicing fluids: Type I Type I fluids have a low viscosity, and are considered "unthickened ...

6. Radiator (engine cooling) - Wikipedia

   en.wikipedia.org/wiki/Radiator_(engine_cooling)

   Antifreeze itself is usually ethylene glycol or propylene glycol (with a small amount of corrosion inhibitor). A typical automotive cooling system comprises: a series of galleries cast into the engine block and cylinder head, surrounding the combustion chambers with circulating liquid to carry away heat;

7. Haze machine - Wikipedia

   en.wikipedia.org/wiki/Haze_machine

   Propylene glycol/water haze fluid is sometimes referred to as "water based haze" to avoid ambiguity. Describing the fluid as "glycol" might cause stagehands to use automotive antifreeze, which contains ethylene glycol, [1] and unlike propylene glycol, must not be used for this purpose because of its toxicity.