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Phosphoric Acid

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Download Safety Data Sheet: Phosphoric Acid

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Phosphoric acid, also known as orthophosphoric acid, is an inorganic acid used in chemical manufacturing and cleaning formulations. It is probably best known for rust removal. It may be applied directly to rusted iron & steel tools or to rusted surfaces. The red iron oxide is converted to a black ferric phosphate, which can act as a short-term rust inhibitor. It is used cleaning masonry or bricks, pre-cast concrete and concrete surfaces.

Brick cleaners use it to remove mortar residue, lime & hard water deposits, efflorescence, acid burn stain, rust and other dirt and grime. It is a milder alternative to other acid cleaners.

Food grade phosphoric acid is also used in food & beverages as a food additive and acidity regulator. In agriculture, it is used in the production of fertiliser and as an additive & flavouring agent in animal or poultry feed. It is also has wide dentistry & orthodontic applications, including toothpastes and teeth whitening products.

Available in 81% and 85% concentrations

Packaging: 20L, 200L & 1000L

Description Typical Unit
Appearance Clear, slightly viscous liquid
Phosphoric Acid (H3PO4) 85.0 min %
Phosphorus Pentoxide (P2O5) 61.7 %
Iron (Fe) 30 max mg/kg
Chloride (Cl) 20 max mg/kg
Fluoride (F) 10 max mg/kg
Arsenic (As) 3 max mg/kg
Cadmium (Cd) 3 max mg/kg
Lead (Pb) 3 max mg/kg
Density @20°C 1.69 g/mL

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