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Applications & Uses of Phosphoric acid

03/04/2016 admin

Phosphoric acid, also called orthophosphoric acid, (H3PO4), is the most important oxygen acid of phosphorus. It is a clear colorless solid or syrupy liquid. Phosphoric acid is deliberately added to soft drinks to give them a sharper flavor. Food-grade phosphoric acid (additive E338) is used to acidify foods and beverages such as various colas and jams. It provides a tangy or sour taste. Various salts of phosphoric acid, such as monocalcium phosphate, are used as leavening agents.

 

Phosphoric Acid Used in Foods & Beverages

Food-grade phosphoric acid (additive E338) is used to acidify foods and beverages such as various colas and jams. It provides a tangy or sour taste. Various salts of phosphoric acid, such as monocalcium phosphate, are used as leavening agents.

 

Phosphoric Acid Used in Other Applications

One of its important uses is in the fields of medicine and dentistry. It is used as an electrolyte in phosphoric acid fuel cells. It is also used as a cleaner in construction-related trades, so as to remove mineral deposits, cement smears, and hard water stains. Hot phosphoric acid is used in micro-fabrication to etch silicon nitride. It is used as a flux by hobbyists to aid in the process of soldering. It is also used in hydroponics pH solutions to lower the pH of nutrient solutions. Phosphoric acid is also used as an electrolyte in copper electro-polishing for burr removal. In compound semiconductor processing, it is a commonly used as a wet etching agent. This acid is used as a pH adjuster in cosmetics and other skin care products. It is also used as a chemical oxidizing agent for activated carbon productions. It is used with distilled water as an electrolyte in oxyhydrogen generators. Thus, phosphoric acid is an important acid which has several different applications in various industries, ranging from metallurgy to the food industry. It is one of the most important and useful chemicals known to man.