What is the freezing point of acetic acid?
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What is the freezing point of acetic acid? Are the pipes for transporting acetic acid insulated or heated? I would appreciate guidance from experienced comrades.
It needs to be treated differently depending on the environment and concentration. Alias: acetic acid； Glacial acetic acid Molecular formula: CH3COOH Physical and chemical properties: Colorless, transparent, flammable liquid. It has a pungent, sour smell. Soluble in water, ether, and glycerin; insoluble in carbon disulfide. It undergoes esterification reactions with alcohols. Relative density 1.05 (water = 1), freezing point 16.7°C, boiling point 118°C, flash point 39°C, explosion limit 4%–17%. The data on acetic acid comes from taohaizhang-07. It can be seen that pure acetic acid needs to be kept at a constant temperature through heating; hot water or low-pressure steam can be used for this purpose, or electric heating could also be considered (since steam and similar methods are not convenient). For dilute acetic acid, the appropriate heating method must be determined based on the freezing point and the ambient temperature. If freezing is possible, then heating is necessary. This post was last edited by Albertlu on 2009-2-24 at 11:34
Pure anhydrous acetic acid (glacial acetic acid) is a colorless, hygroscopic liquid with a freezing point of 16.7 °C (62 °F); it forms colorless crystals upon freezing.
At 16.7℃, both heat retention and heating are required; we use steam for heating
The chemical dictionary states that the melting point is 16.7 degrees; I think there is a difference between the melting point and the freezing point