organic vinegar Portugal

...Acetic acid 50%, 80%, and 99%, systematically referred to as ethanoic acid, is a colorless, acidic organic liquid with the chemical formula (CH3COOH). Vinegar contains at least 4% acetic acid by volume, making acetic acid the main component of vinegar, alongside water and trace elements. It is an important chemical reagent, primarily used in the production of cellulose acetate for photographic...