Acetic acid and Acetic acid glacial said, widely exists in nature, it is a kind of organic compound, is an important hydrocarbon containing oxygen derivative, is typical of fatty acid. Vinegar is the main component of acetic acid. General vinegar contains 3% ~ 5% acetic acid. Acetic acid is recognized as the vinegar inside sour taste and the source of the excitant odour. In the household, acetic acid dilute solution is often used as detergent. The food industry, in food additives E260 list, the provisions of the acetic acid is a kind of acidity regulator.
Acetic acid glacial can be identified by its smell. If join ferric chloride (III), generation product is a deep red and will be after acidizing disappear, the color reaction can also identify acetic acid. Acetic acid and three arsenic oxide reaction generating oxidation dimethyl arsenic, through the product of acetic acid can be identified.
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