Antifreeze | Wikipedia audio article
Channel: wikipedia tts
Date: 02/10/2019

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Antifreeze


00:00:54 1 Principles and history
00:02:04 2 Use and occurrence
00:02:13 2.1 Automotive and internal combustion engine use
00:04:16 2.2 Other industrial uses
00:05:50 2.3 Biological antifreezes
00:06:23 3 Primary agents
00:06:33 3.1 Ethylene glycol
00:07:48 3.2 Propylene glycol
00:09:23 3.3 Other antifreezes
00:10:03 4 Measuring the freeze point
00:11:19 5 Corrosion inhibitors
00:12:12 5.1 Maintenance
00:12:57 5.2 Traditional inhibitors
00:13:28 5.3 Organic acid technology
00:16:21 5.4 Hybrid organic acid technology
00:16:44 6 Additives
00:18:08 7 See also



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SUMMARY
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An antifreeze is an additive which lowers the freezing point of a water-based liquid.  An antifreeze mixture is used to achieve freezing-point depression for cold environments.  Common antifreezes increase the boiling point of the liquid, allowing higher coolant temperature.Because water has good properties as a coolant, water plus antifreeze is used in internal combustion engines and other heat transfer applications, such as HVAC chillers and solar water heaters. The purpose of antifreeze is to prevent a rigid enclosure from bursting due to expansion when water freezes. Commercially, both the additive (pure concentrate) and the mixture (diluted solution) are called antifreeze, depending on the context. Careful selection of an antifreeze can enable a wide temperature range in which the mixture remains in the liquid phase, which is critical to efficient heat transfer and the proper functioning of heat exchangers.