Pure acetic acid is a colorless, pungent, corrosive, flammable liquid. This acid freezes at 16.6 ° C. For this reason, as well as its ice-like appearance, it is known as glacial acetic acid. Acetic acid in aqueous solutions can separate and produce acetate ions. Its pH is 4.8, ie at pH = 4.8 half of the acetic acid molecules in aqueous solution are in the form of acetate ions. Acetic acid contains dimers of two acetic acid molecules that are linked together by hydrogen bonds. Therefore, acetic acid in the gaseous state does not follow the law of ideal gases. General properties Acetic acid is similar to other carboxylic acids. Acetic acid reacts with alcohols to produce estroamides, respectively. It also reacts by producing ester acetate. This acid decomposes under heat to temperatures above 44 ° C to produce CO2.
Industrial production process of acetic acid
Methanol carbonylation In this method, methanol reacts with high pressures (200 atm) to produce acetic acid. This method has been invented since 1920 and is economically viable due to the cheapness of methanol and CO. Vinegar ink has antibacterial and antifungal properties and can help treat diseases of bacterial and fungal origin. As you know, vinegar is actually a dilute solution of acetic acid, which is why some people have been using vinegar to disinfect their clothes since ancient times. Ethanoic acid is not the only acid that has antibacterial properties, but other acids such as lactic acid, citric acid and their salts have the same characteristics.