Phosphoric acid, also known as orthophosphoric acid, is an inorganic acid commonly used in various industries. It has moderately strong acidity, its chemical formula is H3PO4, and its molecular weight is 97.995. Unlike some volatile acids, phosphoric acid is stable and does not break down easily, making it a reliable choice for a variety of applications. While phosphoric acid is not as strong as hydrochloric, sulfuric, or nitric acids, it is stronger than acetic and boric acids. Furthermore, this acid has the general properties of an acid and acts as a weak tribasic acid. It is worth noting that phosphoric acid is hygroscopic and readily absorbs moisture from the air. In addition, it has the potential to convert to pyrophosphoric acid when heated, and subsequent loss of water can convert it to metaphosphoric acid.
Technical Index
Property
Unit
Value
Chroma
20
H3PO4
%≥
85
Cl-
%≤
0.0005
SO42-
%≤
0.003
Fe
%≤
0.002
As
%≤
0.0001
pb
%≤
0.001
Usage:
The versatility of phosphoric acid makes it indispensable in various industries, especially pharmaceutical, food and fertilizer production. In the pharmaceutical field, it is widely used as an anti-rust agent and as an ingredient in dental and orthopedic procedures. As a food additive, it ensures stable product quality. Phosphoric acid is also used as an etchant in electrochemical impedance spectroscopy (EDIC) and as an electrolyte, flux and dispersant in various industrial processes. Its corrosive properties make it an effective raw material for industrial cleaners, while in agriculture phosphoric acid is an important component of fertilizers. Furthermore, it is an important compound in household cleaning products and used as a chemical agent.To sum up, phosphoric acid is an indispensable multifunctional compound widely used in various industries. Its stable and non-volatile nature, combined with its moderate acidity, make it the first choice for many applications. Phosphoric acid's wide range of uses, from pharmaceuticals to food additives, from dental procedures to fertilizer production, proves its importance in manufacturing and everyday life. Whether as a caustic, electrolyte or cleaning ingredient, this acid has proven its effectiveness and reliability. With its wide range of applications and beneficial properties, phosphoric acid is a valuable asset across several industries.
