Phosphoric Acid

Phosphoric Acid

AKA “7664-38-2, ORTHOPHOSPHORIC ACID, o-Phosphoric acid, Wc-reiniger, Acidum phosphoricum, Sonac, Phosphorsaeure, Evits, Acide phosphorique”

Acid

Ingredient Facts

Phosphoric acid

AKA: 7664-38-2, ORTHOPHOSPHORIC ACID, O-Phosphoric acid, Wc-reiniger, Acidum phosphoricum, Sonac, Phosphorsaeure, Evits, Acide phosphorique

Acid · Buffering · EWG: 1

Synthetic

Acid

Clean

Phosphoric Acid is a colorless, odorless phosphorus-containing inorganic acid. Phosphoric acid is a sequestering agent which binds many divalent cations, including Fe++, Cu++, Ca++, and Mg++. Phosphoric acid is used in dentistry and orthodontics as an etching solution, to clean and roughen the surfaces of teeth where dental appliances or fillings will be placed. In addition, phosphoric acid is a constituent in bone and teeth, and plays a role in many metabolic processes.

Solubility Miscible (NIOSH, 2024)

Formula

H3O4P

Mol. Weight

98.00

CAS #

7664-38-2

Form

Liquid

State

Phosphoric acid appears as a clear colorless liquid or transparent crystalline solid. The pure solid melts at 42.35 °C and has a density of 1.834 g / cm3. Liquid is usually an 85% aqueous solution. Sh

See origin →

Functions

Buffering

Stabilizes pH

Antioxidant Protection

Locks In Moisture

Fights Bacteria

Traditional Use

A mineral acid known since ancient times from phosphate deposits; used historically as a food preservative and cleaning agent. In cosmetics, developed as a pH adjuster and chemical exfoliant in modern skincare formulations.