### acid:

Phenolic acid
* are a class of antioxidants, or compounds that quench free radicals
  - abundant in foods, especially coffee, whole grains, fruits, and vegetables
* have mild anti-inflammatory properties and are potent antioxidants.

### acid:

Phosphoric acid
* balances the cola s sweetness to provide the characteristic tart taste.
* can also break down tooth enamel
  - combine with certain alkaline elements to form salts called phosphates
* colorless, odorless thick liquid.
* contains three hydrogen ions.
* corrosive chemical and contact can severely burn the eyes and skin.
* dense, colorless liquid which is toxic and strong irritant to tissue.
* forms flammable gases with sulfides, mercaptans, cyanides and aldehydes.
* good P source for plants.
* has a condition of silent peevishness and aversion to conversation
  - special relation to the periosteum
* high analysis liquid phosphorus source.
* is acid
  - added to the heated crude oil to eliminate the phospholipids
  - an acidulant added to cola drinks
* is an ingredient contained in many common products such as carbonated colas
  - in soft drinks that support their bubblieness
  - intermediate step in almost all phosphate applications
  - chemical compounds
  - harmless, despite the alarming name
  - heated with a sodium halide to make the hydrogen halide and sodium phosphate
  - liquids
  - one of the least toxic acids
* is produced by either a dry or wet process
  - from the metabolism of nucleic acids and phospholipids
  - in the reaction between calcium phosphate and sulfuric acid
  - responsible for tang
  - the result of combining mined phosphate rock with acid
* is used in the production of phosphatic fertilizers
  - primarily in manufacturing fertilizers, detergents and pharmaceuticals
  - very reactive acid
* strong acid.
* supplies dietary ash buffers which offset the symptoms of alkalosis.
* triprotic acid, but only two inflections appear on the titration curve.
* weaker acid.
* white solid.
* works well and is safe for most surfaces.
+ Phosphoric acid, Properties: Phosphorus compounds
  * Phosphoric acid is a white solid. It melts easily to make a viscous liquid. It can be deprotonated three times. It is very strong, although not as much as the other acids like hydrochloric acid. It does not have any odor. It is corrosive when concentrated
  - Safety
  * Phosphoric acid is one of the least toxic acids. When it is diluted, it just has a sour taste. When it is concentrated, it can corrode metals
  - Uses
  * It is used to make sodas sour. It is also used when a nonreactive acid is needed. It can be used to make hydrogen halides, such as hydrogen chloride. Phosphoric acid is heated with a sodium halide to make the hydrogen halide and sodium phosphate. It can be used to clean teeth

Phytanic acid
* derives from the corresponding alcohol, phytol, and is oxidized into pristanic acid.
* is found in meat, fish, and dairy products.

### acid:

Phytic acid
* binds two-thirds or more of the phosphorus from plant sources
  - with calcium, magnesium and iron
* chemical that naturally occurs in legumes, cereals, and nuts.
* inhibits zinc absorption.
* is broken down by yeast fermentation
  - found in rye bread and other foods made from whole grains
  - one substance found in whole grains which can reduce mineral absorption
* is thought to reduce the body's ability to absorb certain nutrients, like iron
  - ability to use certain nutrients, like iron
  - ability to use iron and certain other nutrients

Picolinic acid
* is most renowned for zinc supplements.
* natural metabolite found in human breast milk.

Polylactic acid
* biodegradable polymer produced from sugar.
* is an example of a plastic that biodegrades quickly.

Polyprotic acid
* Most polyprotic acids have at least one amphiprotic ion.
* can undergo neutralization to produce both normal and acid salts.
* lose their H one at a time.