Description
Phosphoric acid 85%
Phosphoric acid (H₃PO₄) is a binary acid composed of the elements hydrogen (H) and phosphorus (P). It has several stages of phosphorus oxidation, which leads to the formation of various forms of phosphoric acids. The most common and important of these is phosphoric acid (H₃PO₄).
This acid can be used in various fields such as fertilizer production, food processing (as an acidity regulator), electronics (in chip production), and even in medical applications.
It is important to note that phosphoric acids can be corrosive and precautions are required when handling.
Application
Industrial phosphoric acid is the most important intermediate for the production of phosphate and complex fertilizers and industrial phosphates, it is also widely used for metal phosphating, as a catalyst in organic synthesis.
Food grade phosphoric acid is used to make soft drinks, medicines, and more. Orthophosphoric acid is registered as food additive E338. It is used as an acidity regulator in carbonated drinks, such as Coca-Cola.
Phosphoric acid is used in soldering as a flux (on oxidized copper, on ferrous metal, on stainless steel), for research in the field of molecular biology. It is also used for removing rust from metal surfaces. Forms a protective film on the treated surface, preventing further corrosion. It is also used as a part of freons, in industrial freezers as a binder.
Orthophosphoric acid is used in the aviation industry as part of hydraulic fluids.
This acid is also used in agriculture – for example, fur farming (in particular, when growing minks) use the drinking of a solution of orthophosphoric acid to prevent increased pH of the stomach and urolithiasis.
Orthophosphoric acid is very widely used in dentistry – for etching enamel and dentin before filling teeth, in the manufacture of dental cements.
Also available: 75% acid.
Security
Signal word – Danger
Stickers (Pictogram) – GHS07, GHS05
Hazard statements –
H290 – May be corrosive to metals.
H302 – Harmful if swallowed
H314 – Causes severe skin burns and eye damage.
Precautionary statements –
P280 – Wear protective gloves/protective clothing/eye/face protection
P301 + P330 + P331 – IF SWALLOWED: rinse mouth. DO NOT induce vomiting
P303 + P361 + P353 – IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water or shower P305 + P351 + P338 – IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if you have them and this is easy to do. Continue rinsing
P310 – Immediately call a POISON CENTER or doctor/physician
UN number – UN 1805
Hazard Class – 8
Packing Group – III
