density of glacial acetic acid in g/ml_density of glacial acetic acid in g/ml

Comparison of Glacial Acetic Acid and Regular Acetic Acid Properties and Applications

The primary difference between acetic acid and glacial acetic acid lies in their concentration. Acetic acid is typically found in dilute solutions, often around 4% to 8%, especially in culinary applications. This concentration is safe for consumption and is the basis for vinegars used in kitchens worldwide. Glacial acetic acid, on the other hand, refers to pure acetic acid that is not diluted with water. It has a boiling point of 118 °C and freezes at around 16.6 °C, forming a solid, ice-like substance, which is where the term glacial originates. The purity of glacial acetic acid is usually 99.5% or higher.

Glacial acetic acid has the chemical formula CH₃COOH, which denotes its structure as a simple carboxylic acid. The presence of the carboxyl group (-COOH) is crucial for its acidic properties. It is classified as a weak acid, meaning that it partially dissociates in water to release hydrogen ions (H⁺) and acetate ions (CH₃COO⁻). The dissociation constant (Ka) for acetic acid is approximately 1.8 x 10⁻⁵ at 25°C, indicating a low degree of ionization in aqueous solution.

The Role and Applications of Glacial Acetic Acid

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Аднак, нягледзячы на ўсе свае карысныя ўласцівасці, ледзяная ацетатава кіслота таксама мае свае небяспекі. Яна можа быць карозійнай і выклікаць раздражненне, калі кантактуючы з скурай або вачыма. Таму для працы з ёй неабходна прытрымлівацца строгіх меры бяспекі і выкарыстоўваць адпаведныя сродкі абароны.