Chemically, compounds that dissociate (ionise) in water to give rise to hydrogen ions (H+); they taste sour.
A substance in which the hydrogen ion concentration is greater than the hydroxyl ion. May be organic or inorganic. Generally sharp and sour taste.
A substance with a pH in the range from 0-6 which will react with a base to form a salt. Acids normally taste sour and feel slippery. For example, food product manufacturers often add citric acid, malic acid, fumaric acid, and itaconic acid in order to impart a “sharp” taste to food products.
Containing relatively little lime, to give a pH reaction of less than 7, the sort of soil needed to grow such plants as azaleas, camellias, rhododendrons and the like, and in which hydrangeas flower blue. A very acid soil is described as “sour.”
Any substance that releases hydrogen ions in solution. The hydrogen ions may be displaced by a metal to form salt, base; alkali.
A chemical compound containing hydrogen, which reacts with an alkali to form a salt and water.
A water-soluble, sour substance (e.g., vinegar).
A chemical compound capable of neutralizing alkalis and releasing hydrogen ions when in solution. Acids are corrosive and usually have a sour taste. An acid reacts with a base to form a salt, has a pH (a measure of the acidity of a solution) less than 7, and will turn blue litmus red.
An element characterized as a bestower of hydrogen ions, which are hydrogen atoms carrying positive electric charges, is referred to as an acid. When acids are combined with or dissolved in water, they disintegrate, liberating their component ions. In this case, all acids release hydrogen ions as positively charged particles, known as cations, while negatively charged ions are termed anions.
The human body contains various acids, including hydrochloric acid, which is a corrosive mineral acid produced by the lining of the stomach. Additionally, numerous organic acids are present, such as lactic acid, carbonic acid, ascorbic acid (commonly known as vitamin C), and pyruvic acid.
A substance that includes hydrogen as a key component, has a sour flavor, turns blue plant-based colors to red, counteracts alkaline substances, and reacts with bases to produce salts.