CAS 64-19-7 Glacial acetic acid is more simply, undiluted acetic acid. This undiluted form makes it highly corrosive. Colorless and organic, glacial acetic acid has a variety of uses in foods and is generally marketed as a crystalline solid. It is hygroscopic, meaning it absorbs water from its surrounding environment. Because glacial acetic acid GAA is a weak acid, it does not completely dissociate in an aqueous solution.
What is food grade acetic acid (CAS 64-19-7)?
Glacial acetic acid is generally recognized as safe for use in foods if it is of "food-grade" and is used in accord with good manufacturing processes.
In the food industry, glacial acetic acid is controlled by the food additive code E260 as an acidity regulator and as a condiment.
Main Uses in Food Industry
- Makes edible vinegar (diluted to 3%-5% concentration).
- Preserves processed foods (e.g., pickles, canned fruits) by slowing microbial growth.
- Enhances sour taste and adjusts flavor in drinks, candies, and sauces.
- Aids food processing (e.g., cheese, bread) by regulating acidity.
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